Answer:
AB = 15 m∠A = 45°m∠B = 45°Step-by-step explanation:
So, to solve for AB, we need to use the Pythagorean theorem.
The Pythagorean theorem tells us, that:
The hypotenuse, in this case AB, is equal to the square root of the sum of the two cathetus squared, or the sides 9 and 12 squared.
Representation in an equation:
Hypotenuse (AB) = √9² + 12².
Now, let's solve for AB:
AB = √9² + 12²
AB = √81 + 144
AB = √225
AB = 15
Let's solve for m∠A:
So, the sum of the angles of every triangle should add up to 180°.
We already know that m∠C = 90°
We can see that m∠A and m∠B angles are exactly the same.
We can see that half of 90° = 45°.
From that, we can infer that m∠A and m∠B measure 45°.
45° + 45° + 90° = 90° + 90°.
90° + 90° = 180°.
The two 45° are m∠A and m∠B, m∠C is 90°. Just to clear any doubts.
So, having all that said, the following answers would be:
AB = 15
m∠A = 45°
m∠B = 45°
Happy to help!
Can someone solve this step by step?
Answer:
2 9/14
Step-by-step explanation:
first we must make 1/6 and 3/7 have common demoniaters! (or however u spell it)
1/6 x 7/7 = 7/42
3/7 x 6/6 = 18/42
7/42 + 18/42 = 25/42
2/7 x 6/6 = 12/42
25/42 + 12/42 = 37/42
37/42 + 7/42 = 44/42
44/42 + 18/42 = 62/42
62/42 + 12/42 = 74/42
5/7 x 6/6 = 30/42
74/42 + 30/42 = 104/42
104/42+7/42 = 111/42
111/42 = 2 9/14
Verify your answer
X=7
4(x)+1 divided by 3 - 7(x)-11divided by 5=3
Answer:
OkStep-by-step explanation:
A company determines an employee's starting salary according to the number of years of experience, as detailed in the table.
Years of experience Salary
0 $52,000
1 $53,150
2 $54,260
3 $55,285
4 $56,921
5 $57,126
Use the equation for the line of best fit to predict the salary for an employee with 6 years of experience? (Round your answer to the nearest dollar.)
$61,150
$59,672
$58,587
$57,990
Answer:
Answer down bellow
Step-by-step explanation:
Q's Asked: A company determines an employee's starting salary according to the number of years of experience, as detailed in the table.
Years of experience Salary
0 $52,000
1 $53,150
2 $54,260
3 $55,285
4 $56,921
5 $57,126
---------------------------------------------------------------------------------------------------------
So based on the chart:
0 $52,000
1 $53,150
2 $54,260
3 $55,285
4 $56,921
5 $57,126
We can see for each year of experience the "Salary" goes up one thousands constantly. And that makes sense bc as you get used to the work u gradually get better meaning u work better and u also get paid better. ehmm... my bad
----------------------------------------------------------------------------------------------------------
So work side of things based on the chart we see the amount the amount change. so from
0 to 1 yr
you will be paid $1,150 more.
and from 1 to 2 yrs you will be paid 1110.
and so on.
So the answer is $58,587And btw i got it right on my test !
~~Wdfads~~Pls like and give brainlest
-5 1/4 -(-7 1/2) simplify
really fast pleas
Some transportation experts claim that it is the variability of speeds, rather than the level of speeds, that is a critical factor in determining the likelihood of an accident occurring (Update, Virginia Department of Transportation, Winter 2000). One of the experts claims that driving conditions are dangerous if the variance of speeds exceeds 75 (mph)2. On a heavily traveled highway, a random sample of 55 cars revealed a mean and a variance of speeds of 62.5 mph and 94.7(mph)2, respectively. (You may find it useful to reference the appropriate table: chi-square table or F table)
1. Set up the competing hypothesis to test wxpert,s claim.
2. At the 5% significance level find the critical value and state the decision rule.
3. Can you conclude that driving conditions are dangerous on this highway? explain.
Answer:
Explained below.
Step-by-step explanation:
The claim made by an expert is that driving conditions are dangerous if the variance of speeds exceeds 75 (mph)².
(1)
The hypothesis for both the test can be defined as:
H₀: The variance of speeds does not exceeds 75 (mph)², i.e. σ² ≤ 75.
Hₐ: The variance of speeds exceeds 75 (mph)², i.e. σ² > 75.
(2)
A Chi-square test will be used to perform the test.
The significance level of the test is, α = 0.05.
The degrees of freedom of the test is,
df = n - 1 = 55 - 1 = 54
Compute the critical value as follows:
\(\chi^{2}_{\alpha, (n-1)}=\chi^{2}_{0.05, 54}=72.153\)
Decision rule:
If the test statistic value is more than the critical value then the null hypothesis will be rejected and vice-versa.
(3)
Compute the test statistic as follows:
\(\chi^{2}=\frac{(n-1)\times s^{2}}{\sigma^{2}}\)
\(=\frac{(55-1)\times 94.7}{75}\\\\=68.184\)
The test statistic value is, 68.184.
Decision:
\(cal.\chi^{2}=68.184<\chi^{2}_{0.05,54}=72.153\)
The null hypothesis will not be rejected at 5% level of significance.
Conclusion:
The variance of speeds does not exceeds 75 (mph)². Thus, concluding that driving conditions are not dangerous on this highway.
The area of a rectangle is 16 1/3 square inches.The width is 4 2/3. Inches.Find the length
Answer:
Let the length of the rectangle be L. Then we can use the formula for the area of a rectangle:
Area = Length x Width
Substituting the given values, we get:
16 1/3 = L x 4 2/3
To solve for L, we can first convert the mixed numbers to improper fractions:
16 1/3 = 49/3
4 2/3 = 14/3
Substituting these values, we get:
49/3 = L x 14/3
To solve for L, we can multiply both sides by the reciprocal of 14/3:
49/3 ÷ 14/3 = L
Simplifying, we get:
L = 49/3 x 3/14
L = 7/1
L = 7
Therefore, the length of the rectangle is 7 inches.
Step-by-step explanation:
The entire graph of the function f is shown in the figure below.
Write the domain and range of f using interval notation.
Domain of f is ( -4 ,1 ) and Range of f is (4 , -5)
The domain refers to the set of possible input values.
The domain of a graph consists of all the input values shown on the x-axis.
The range is the set of possible output values, which are shown on the y-axis.
According to the graph ,
The horizontal extent of the graph is starting from -4 and ending on 1
Therefore , the domain of graph is (-4 , 1)
These points are not included in the domain , you can observe the end points of curves is not filled
The vertical extent of graph is starting from 4 and going downwards till -5
so, Range of graph is (4 , -5)
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I need help with this
Answer:
yes
no
no
yes
no
Step-by-step explanation:
7/20 + 3/5 = 19/20 (yes/no) | it goes through
3/5 + 3/10 = 3/15 (yes/no) | doesn't go through
1/2 + 2/3 = 3/5 (yes/no) | doesn't go through
1/10 + 1/2 = 3/5 (yes/no) | it goes through
3/5 + 1/20 = 9/20 (yes/no) | doesn't go through
3. If a 35-foot cable were run from the top of the pole and anchored to the ground at a distance from the pole, about how far away from the pole would it be anchored?
The distance from the pole at which the cable is anchored is about 25 feet from the pole .
Given that a 35-foot cable is run from the top of the pole and anchored to the ground at a distance from the pole. The problem is to determine about how far away from the pole would it be anchored.
Let AB be the pole of length 40 feet, and CD be the 35-foot long cable anchored to the ground at D and attached to the top of the pole at C. Let E be the point on the ground at which the cable is taut and is anchored. The distance ED is to be determined.
we can see that ∆CDE is a right-angled triangle with ∠CED = 90°.
Using Pythagoras Theorem, we have:CD² = CE² + DE²35² = (40 - ED)² + DE² .
Simplifying the above equation
1225 = 1600 - 80ED + ED²
1225 - 1600 + 80ED - ED² = 0ED² - 80ED + 375 = 0
Factorizing the above quadratic equation
ED² - 25ED - 15ED + 375 = 0ED(ED - 25) - 15(ED - 25)
= 0(ED - 15)(ED - 25) = 0So, ED = 15 ft or ED = 25 ft.
The negative value of ED is extraneous since it represents a point below the ground, which is not possible. Therefore, the distance from the pole at which the cable is anchored is about 25 feet from the pole.
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Which is the best estimate of StartFraction 90 over 7 EndFraction divided by 1 and three-fourths?
Answer:b
Step-by-step explanation:
90 is a weird number btw
Answer:
The Answer is 6
Hope this helps hehehe
HELP! WILL MARK BRAINLIEST ANSWER
Question: 1-
James measured a TV that is approximately 13 inches tall by 20 inches wide.
Since the size of TVs are named by the measure of the diagonal, the BEST diagonal measure for this TV is
32 inches
27 inches
24 inches
18 indes
am I right for part A. And please help me with B
a) The radius of the sphere is given as follows: 27.13 ft.
b) The surface area can be checked as follows: S = 4 x 3.14 x 27.13² = 9244.
How to obtain the surface area?The surface area for a sphere of radius r is given by the equation presented as follows:
S = 4πr².
The surface area for this problem is given as follows:
9244 ft².
Hence the radius is given as follows:
\(r = \sqrt{\frac{9244}{4 \times 3.14}}\)
r = 27.13 ft.
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Please help me!! I don't get this at all
Answer:
i think it's 1/2 (a-8)
Step-by-step explanation:
so if u take 1/2 (a-8) and do distributive property ull get 1/2a and the 1/2 times 8=4 so u get 1/2a-4 I'm sorry if im wrong but this is what makes sense to me
29. Assertion :7√5, √2+21 are the irrational number. Reason: every integer is an rational number 30.
The assertion is true. Both 7√5 and √2 + 21 are irrational numbers because they cannot be expressed as fractions.
The assertion is true. Both 7√5 and √2 + 21 are irrational numbers.
An irrational number is defined as a number that cannot be expressed as a fraction of two integers and has an infinite non-repeating decimal representation.
In the case of 7√5, the square root of 5 is an irrational number because it cannot be expressed as a fraction. Multiplying it by 7 does not change its irrational nature.
Similarly, √2 is also an irrational number because the square root of 2 cannot be expressed as a fraction. Adding 21 to √2 does not alter its irrationality.
The reason provided, that every integer is a rational number, is not relevant to the given assertion. While it is true that every integer is a rational number because it can be expressed as a fraction (e.g., 3 can be written as 3/1), it does not contradict the fact that 7√5 and √2 + 21 are irrational numbers.
In conclusion, the assertion is valid, and both 7√5 and √2 + 21 are irrational numbers.
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PLEASE QUICKLY! WILL SELECT BRANLIEST
Which describes the effect of the transformations on the graph of f(x) = x2 when changed to f(x) = 1/4(x - 3)2 - 9?
A) stretched vertically, shifted left 3 units, and shifted up 9 units
B) stretched vertically, shifted right 3 units, and shifted down 9 units
C) compressed vertically, shifted left 3 units, and shifted up 9 units
D) compressed vertically, shifted right 3 units, and shifted down 9 units
This is not part of the equation its just to help
"(x- 3)2 -9"
2 is a exponent
Note: The photo does not show full equation
Answer:
B
Step-by-step explanation:
The amount of chlorine needed to treat a swimming pool is directly proportional to the volume of the poolWhat is the constant of proportionality for this relationship
The amount of chlorine needed to treat a swimming pool is directly proportional to the volume of the poolWhat is the constant of proportionality for this relationship
Cindy, Mary, and Reese will share the cost to rent a vacation home for a week.
Cindy's share represents 40% of the cost.
Mary's share represents 35% of the cost.
Reese's share represents the remainder of the cost.
The cost to rent a vacation home for a week is $850. How much will Reese pay to rent this vacation home for a week?
A) $200.00
B) $297.50
C) $212.50
D) $637.50
If you can plz show your work thank you and this is a 7th grade question have fun
Answer: $212.50
Step-by-step explanation:
Cindy's share = 40% of the cost.
Mary's share = 35% of the cost.
Reese's share = 100% - (40% + 35%) = 100% - 75% = 25%
If the cost to rent a vacation home for a week is $850, the amount that Reese will pay to rent this vacation home for a week will be:
= 25% × $850
= 0.25 × $850.
= $212.50
Angle sun theorum solve for Y
Answer:
Angle sum Theorem says that the sum of the measures of the interior angles of a triangle is 180 degrees. ... This creates alternate interior angles that are congruent. Sum of two interior angles equals the opposite exterior angle...33 + 87 = yy = 120°
Step-by-step explanation:
-8x+y=6
-8x+3y=-14
How would you solve this using the elimination method? Thanks!
Answer:
x = -1,375
y = -5
Step-by-step explanation:
{-8x + y = 6, / : (-1)
{-8x + 3y = -14;
Multiply the first equation by -1, so that we could eliminate 8x:
+ {8x - y = -6,
{-8x + 3y = -14;
----------------------
4y = - 20 / : 4
y = -5
Now, make x the subject from the first equation (you can do it from the 2nd one instead):
8x = -6 + y / : 8
x = -0,75 + 0,125y
x = -0,75 + 0,125 × (-5) = -0,75 - 0,625 = -1,375
factor completely : (x^2+x-6)(2x^2+4x)
Answer:
(x+3)(x-2)(2x)(x+2)
Step-by-step explanation:
First, start by factoring (x²+x-6).
Find 2 numbers that multiply to -6 and add to get 1. This will be 3 and -2.
So, (x²+x-6) will factor into (x+3)(x-2)
Then, factor (2x²+4x).
You can factor out 2x because both terms can be divided by that.
You will be left with 2x(x+2), which cannot be factored anymore.
Combine all the factors to get (x+3)(x-2)(2x)(x+2).
The answer is (x+3)(x-2)(2x)(x+2).
What is an element?Component, in arithmetic, a number or algebraic expression that divides every other variety or expression calmly—i.e., without a remainder. as an example, three and six are factors of 12 due to the fact 12 ÷ three = four precisely and 12 ÷ 6 = 2 precisely. The other elements of 12 are 1, 2, four, and 12.
A nice technique for teaching college students how to discover factor pairs is to have them begin at 1 and paint their manner up. Supply your college students a goal number and ask them to put “1 x” underneath it. let them fill inside the right aspect with the variety itself. We recognize that any variety has one “thing pair” of one time itself.
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PLEASE HELP! i have by the end of the day to turn this in. PLEASE DONT GUESS :)
Answer:
x = 101°
Step-by-step explanation:
180-147 = 32
180-47-33 = 101
also this is not college math what
Correct to 3 significant figures, the of 18.75-(2.11)2
Answer: 14.5
Step-by-step explanation:
When there is a decimal point, you start counting from the left any number that is not zero. If the zero is at the end, then you count it.
For example, if the answer is 0.000145 then the number of significant figures is still three because you start counting from the first nonzero number from the left.
If the answer is 14.50, then the number of significant figures is four because you start counting from the first nonzero number from the left.
14.53 is the answer to the equation but because you want to correct it to 3 significant figures, you round down because 3 is less than 5 and 14.5 ends up being the final answer.
what is between fractions 6/6 and 6/7
The fraction 13/7 lies between the fractions 6/6 and 6/7.
We have,
Between the fractions 6/6 and 6/7, there are infinitely many fractions.
To find a fraction that lies between these two fractions, we can take their average.
The fraction 6/6 simplifies to 1, and the fraction 6/7 cannot be simplified further.
To find the average, we add the two fractions and divide the sum by 2:
(6/6 + 6/7) / 2
To add the fractions, we need a common denominator, which is the least common multiple (LCM) of 6 and 7, which is 42.
Converting the fractions to have a common denominator:
(6/6) x (7/7) + (6/7) x (6/6) / 2
Simplifying the expression:
(42/42 + 36/42) / 2
Combining the numerators:
(78/42) / 2
Dividing:
78/42 = 13/7
Thus,
The fraction 13/7 lies between the fractions 6/6 and 6/7.
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Si se duplica la base de un triángulo, ¿su área se reduce a la mitad? Justificar.
Answer:
Dado que el área de un triángulo es igual a la multiplicación de su base por su altura, si la base de un triángulo se duplica, su área se incrementará, con lo cual la afirmación es incorrecta, ya que el área no se reducirá a la mitad. Así, por ejemplo, un triángulo de base 10 y altura 15 tendrá un área de 50 (10 x 5), mientras que si su base se duplica a 20, pasará a tener un área de 100 (20 x 5), con lo cual su área también se duplicará.
what is an equivalent expression for 1/4x
please help ASAP.
Answer:
x/4
Step-by-step explanation:
The difference between 12 and ten times a number is !28
The expression of the mathematical statement given as the difference between 12 and ten times a number is 28 is 12 - 10x = 28
How to represent the mathematical statement as an expression?The mathematical statement is given as
The difference between 12 and ten times a number is 28
The difference of numbers means subtraction
So, we have
The difference between 12 and ten times a number is 28 => 12 - ten times a number is 28
Let the number be x
So, we have
The difference between 12 and ten times a number is 28 => 12 - ten times x is 28
The product of numbers means multiplication
So, we have
The difference between 12 and ten times a number is 28 => 12 - 10 * x is 28
Evaluate the product
The difference between 12 and ten times a number is 28 => 12 - 10x is 28
Rewrite as
The difference between 12 and ten times a number is 28 => 12 - 10x = 28
Hence, the expression of the mathematical statement given as the difference between 12 and ten times a number is 28 is 12 - 10x = 28
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Write the point-slope form of the equation of the line through the given point with the given
slope.
3) through: (1, -5), slope -5/6
4) through:(-2,5), slope = -7/2
Question 3)
Given
The point (1, -5)
The slope m = -5/6
Using the point-slope form of the equation of a line
\(y-y_1=m\left(x-x_1\right)\)
where
m is the slope of the line(x₁, y₁) is the pointIn our case:
m = -5/6(x₁, y₁) = (1, -5)substituting the values m = -5/6 and the point (1, -5) in the point-slope form of the equation of the line
\(y-y_1=m\left(x-x_1\right)\)
\(y-\left(-5\right)=-\frac{5}{6}\left(x-1\right)\)
\(y+5=-\frac{5}{6}\left(x-1\right)\)
Thus, the point-slope form of the equation of the line is:
\(y+5=-\frac{5}{6}\left(x-1\right)\)
Question 4)
Given
The point (-1, 5)
The slope m = -7/2
In our case:
m = -7/2(x₁, y₁) = (-1, 5)substituting the values m = -7/2 and the point (-1, 5) in the point-slope form of the equation of the line
\(y-y_1=m\left(x-x_1\right)\)
\(y-5=-\frac{7}{2}\left(x-\left(-1\right)\right)\)
\(y-5=-\frac{7}{2}\left(x+1\right)\)
Thus, the point-slope form of the equation of the line is:
\(y-5=-\frac{7}{2}\left(x+1\right)\)
Patricia has 3 boxes of cards. Each box is 2 inches thick. The boxes are stacked on top of each other.
Answer:
6
Step-by-step explanation:
define the concept function and give conditions which make relation a function?
Answer:
A function is a relation which describes that there should be only one output for each input (or) we can say that a special kind of relation (a set of ordered pairs), which follows a rule i.e., every X-value should be associated with only one y-value is called a function.
Step-by-step explanation:
Carleigh, Inc., is a pork processor. Its plants, located in the Midwest, produce several products from a common process: sirloin roasts, chops, spare ribs, and the residual. The roasts, chops, and spare ribs are packaged, branded, and sold to supermarkets. The residual consists of organ meats and leftover pieces that are sold to sausage and hot dog processors. The joint costs for a typical week are as follows: Direct materials $84,500 Direct labor 29,000 Overhead 20,000 The revenues from each product are as follows: sirloin roasts, $68,000; chops, $71,000; spare ribs, $33,000; and residual, $9,800. Carleigh’s management has learned that certain organ meats are a prized delicacy in Asia. They are considering separating those from the residual and selling them abroad for $52,000. This would bring the value of the residual down to $2,650. In addition, the organ meats would need to be packaged and then air freighted to Asia. Further processing cost per week is estimated to be $27,500 (the cost of renting additional packaging equipment, purchasing materials, and hiring additional direct labor). Transportation cost would be $12,100 per week. Finally, resource spending would need to be expanded for other activities as well (purchasing, receiving, and internal shipping). The increase in resource spending for these activities is estimated to be $3,120 per week.
Carleigh, Inc. should separate the organ meats from the residual and sell them abroad, as it would increase their total revenue by $17,150 per week.
To determine whether Carleigh, Inc. should separate the organ meats and sell them abroad, we need to calculate the incremental revenue and incremental costs associated with this decision.
The incremental revenue would be the revenue generated from selling the organ meats abroad, which is $52,000 per week. The incremental cost would include the cost of further processing ($27,500 per week), transportation cost ($12,100 per week), and the increase in resource spending for other activities ($3,120 per week).
Therefore, the incremental cost would be $42,720 per week. Subtracting this from the incremental revenue of $52,000, we get an incremental profit of $9,280 per week.
However, this decision would also decrease the value of the residual from $9,800 to $2,650 per week. Therefore, we need to subtract this decrease in value from the incremental profit. This gives us a net increase in profit of $17,150 per week ($9,280 - $7,130).
Thus, it would be beneficial for Carleigh, Inc. to separate the organ meats and sell them abroad.
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