Answer:
the area is 144
Step-by-step explanation:
48 ÷ 4 (which is how many sides a square has) is 12
SO 12 × 12 bc l×w and all sides of a square are equal
the answer is 144
Eli runs 5 meters per second.
On a coordinate plane, a line goes through points (1, 5) and (2, 10)..
Use the graph to identify the independent and the dependent variable. Check all that apply.
The two variables are Eli and 5.
The two variables are meters and seconds.
Meters are graphed on the x-axis.
Meters are graphed on the y-axis.
Seconds is the independent variable.
Seconds is the dependent variable.
Answer:
the two variables are meters and seconds,. meters are graphed on the y- axis, seconds is the independent variable....2,4,5
Answer:
right answer lol
Step-by-step explanation:
CAN ANYONE ANSWER THIS I WILL GIVE BRAINLIEST! 13
Answer:
option 4
Step-by-step explanation:
so first you would simplify to x>-6 and since there is no line under the greater then it would be and open circle and it is shading to the right because of the greater than symbol and if would start of -6 so option 4 is the correct answer
Answer:
Draw an open circle on-6 and shade to the right.
Step-by-step explanation:
Simplify the inequality, so it looks like this: x > −6When the inequality symbol doesn't have a line under it like these do, ≤ and ≥, then it's an open circle, rather than a closed one on a number line.The last option would be the correct one because it says open circle and -6 like we said in step 1 and 2.Volume of this hemisphere give answer to one decimal place
Answer:
\( \implies \rm Volume_{(Hemisphere)} = \dfrac{2}{3}\pi {r}^{3} \\ \)
\(\implies \rm Volume_{(Hemisphere)} = \dfrac{2}{3} \times \dfrac{22}{7} \times 8 \times 8 \times 8 \\ \)
\(\implies \rm Volume_{(Hemisphere)} = \dfrac{2}{3} \times \dfrac{22}{7} \times 512 \\ \)
\(\implies \rm Volume_{(Hemisphere)} = \dfrac{22528}{21} \\ \)
\(\implies \rm Volume_{(Hemisphere)} = 1072.8\: {cm}^{3} \\ \)
I NEED HELPPP!
7th gradeee
Answer:
- 2/3
-2/3
2/-3
Step-by-step explanation:
Hell meeeeeeeeeeee please
Answer:
OOOOOOOOHHH SHUTE BROTHER SORRY WISHED I COULD HELP but im blonde so sowwy
Consider the vectors: a=(1,1,2),b=(5,3,λ),c=(4,4,0),d=(2,4), and e=(4k,3k)
Part(a) [3 points] Find k such that the area of the parallelogram determined by d and e equals 10 Part(b) [4 points] Find the volume of the parallelepiped determined by vectors a,b and c. Part(c) [5 points] Find the vector component of a+c orthogonal to c.
The value of k is 1, the volume of the parallelepiped is 12 + 4λ, and the vector component of a + c orthogonal to c is (1,1,1.5).
a) Here the area of the parallelogram determined by d and e is given as 10. The area of the parallelogram is given as `|d×e|`.
We have,
d=(2,4)
and e=(4k,3k)
Then,
d×e= (2 * 3k) - (4 * 4k) = -10k
Area of parallelogram = |d×e|
= |-10k|
= 10
As we know, area of parallelogram can also be given as,
|d×e| = |d||e| sin θ
where, θ is the angle between the two vectors.
Then,10 = √(2^2 + 4^2) * √((4k)^2 + (3k)^2) sin θ
⇒ 10 = √20 √25k^2 sin θ
⇒ 10 = 10k sin θ
∴ k sin θ = 1
Therefore, sin θ = 1/k
Hence, the value of k is 1.
Part(b) The volume of the parallelepiped determined by vectors a, b and c is given as,
| a . (b × c)|
Here, a=(1,1,2),
b=(5,3,λ), and
c=(4,4,0)
Therefore,
b × c = [(3 × 0) - (λ × 4)]i + [(λ × 4) - (5 × 0)]j + [(5 × 4) - (3 × 4)]k
= -4i + 4λj + 8k
Now,| a . (b × c)|=| (1,1,2) .
(-4,4λ,8) |=| (-4 + 4λ + 16) |
=| 12 + 4λ |
Therefore, the volume of the parallelepiped is 12 + 4λ.
Part(c) The vector component of a + c orthogonal to c is given by [(a+c) - projc(a+c)].
Here, a=(1,1,2) and
c=(4,4,0).
Then, a + c = (1+4, 1+4, 2+0)
= (5, 5, 2)
Now, projecting (a+c) onto c, we get,
projc(a+c) = [(a+c).c / |c|^2] c
= [(5×4 + 5×4) / (4^2 + 4^2)] (4,4,0)
= (4,4,0.5)
Therefore, [(a+c) - projc(a+c)] = (5,5,2) - (4,4,0.5)
= (1,1,1.5)
Therefore, the vector component of a + c orthogonal to c is (1,1,1.5).
Conclusion: The value of k is 1, the volume of the parallelepiped is 12 + 4λ, and the vector component of a + c orthogonal to c is (1,1,1.5).
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For each expression, select all equivalent expressions from the list.
Answer:
(a) 7x +6x, (d) 13x(b) 3 +27y, (c) 3·1 +3·9yStep-by-step explanation:
You want to identify the expressions equivalent to 11x -4x +6x and 3(1 +9y).
SimplifyWe can identify the equivalent expressions by putting them all in their simplest form. This means using the distributive property to eliminate parentheses, and combining like terms.
(a) 11x -4x +6xThe simplified version of the given expression is ...
(11 -4 +6)x = 13x
The other expressions simplify to ...
7x +6x = (7+6)x = 13x . . . equivalent
7x -6x = (7 -6)x = 1x = x . . . not equivalent
13 +x (already simplest) . . . not equivalent
13x (already simplest) . . . equivalent
(b) 3(1 +9y)
The simplified form of the given expression is ...
3·1 +3·9y = 3 + 27y
The other expressions simplify to ...
3 +1·3 +9y = 6 +9y . . . not equivalent
3 +27y . . . equivalent
3·1 +3·9y = 3 + 27y . . . equivalent
3 +9y (already simplest) . . . not equivalent
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I will give BRAINLIEST. Could someone answer the question with a short explanation?
Answer:
7=y 6=x m=2
Step-by-step explanation:
(6,7)
Points are always x, y.
90+ POINTS PLEASE HELP Choose one problem below and use trigonometry to solve for a missing angle x of the right triangle
Answer:
\(x\approx49.3266\textdegree\)
Step-by-step explanation:
So we want to find Angle x.
Note that we already know the side length of the side opposite to Angle x.
We also know that the hypotenuse is 56.3.
Therefore, we can use the sine function. Recall that:
\(\sin(x)=\frac{\text{opposite}}{\text{hypotenuse}}\)
The opposite side is 42.7. The hypotenuse is 56.3. Substitute:
\(\sin(x)=\frac{42.7}{56.3}\)
Take the inverse sine of both sides.
\(\sin^{-1}(\sin(x))=\sin^{-1}(\frac{42.7}{56.3})\)
The left side cancels:
\(x=\sin^{-1}(\frac{42.7}{56.3})\)
Use a calculator. Thus:
\(x\approx49.3266\textdegree\)
And that's our answer :)
Answer:
\(\Huge \boxed{\mathrm{49.33 \° }}\)
\(\rule[225]{225}{2}\)
Step-by-step explanation:
The triangle is a right triangle.
We can use trig functions to solve for the missing angle.
\(\displaystyle \mathrm{sin \theta =\frac{opposite}{hypotenuse} }\)
The opposite side to angle x is 42.7.
The hypotenuse of the right triangle is 56.3.
\(\displaystyle \mathrm{sin} (x)=\frac{42.7}{56.3}\)
Taking inverse sin of both sides.
\(\displaystyle x=\mathrm{sin^{-1}}( \frac{42.7}{56.3})\)
\(x= 49.3265955\)
The missing angle measures approximately 49.33°.
\(\rule[225]{225}{2}\)
Which table contains only coordinates that satisfy the equation y = 3x^2 - 4 (sorry it was kinda hard to fit them all in)
Answer:
A
Step-by-step explanation:
Which of the following statements is not true about the relationship
Answer:
C
Step-by-step explanation:
The Hu family goes out for lunch, and the price of the meal is $42. The sales tax on the meal is 7%, and the
family also leaves a 20% tip on the pre-tax amount. What is the total cost of the meal?
Which graph represents 2x − 5y ≥ − 20
Answer:
Go to desmos and it will answer literally all of your graphing questions. Just type in desmos graphing calculator.
Step-by-step explanation:
Leonie bought a hat and coat.
The hat cost £6.
She sold both items for a total of £45
Leonie made a 300% profit on the hat and a 125% profit on the total cost.
Work out her percentage profit on the cost of the coat.
Leonie made a percentage profit of approximately 225% on the cost of the coat.
To determine Leonie's percentage profit on the cost of the coat, we need to calculate the individual costs of the hat and coat, as well as the total cost. Then we can calculate the overall profit and use it to find the percentage profit on the coat.
Given:
Cost of the hat = £6
Total selling price of hat and coat = £45
Let's assume the cost of the coat as C.
Since Leonie made a 300% profit on the hat, the selling price of the hat would be 300% more than the cost of the hat:
Selling price of the hat = Cost of the hat + (300% of the cost of the hat)
= £6 + (300/100) * £6
= £6 + £18
= £24
Now, we can calculate the total cost of the hat and coat:
Total cost = Cost of the hat + Cost of the coat
= £6 + C
Since Leonie made a 125% profit on the total cost, the selling price of the hat and coat would be 125% more than the total cost:
Selling price of hat and coat = Total cost + (125% of the total cost)
= (£6 + C) + (125/100) * (£6 + C)
= (£6 + C) + (1.25) * (£6 + C)
= (£6 + C) + 1.25C + 1.25 * £6
= (£6 + C) + 1.25C + £7.5
= £13.5 + 2.25C
Given that the total selling price of the hat and coat is £45, we can set up the equation:
£13.5 + 2.25C = £45
Simplifying the equation, we have:
2.25C = £45 - £13.5
2.25C = £31.5
Dividing both sides by 2.25, we find:
C = £14
Now, we can calculate the profit on the cost of the coat:
Profit on the coat = Selling price of the coat - Cost of the coat
= (£13.5 + 2.25C) - C
= (£13.5 + 2.25 * £14) - £14
= £13.5 + £31.5 - £14
= £31.5
To find the percentage profit on the cost of the coat, we divide the profit by the cost of the coat and multiply by 100:
Percentage profit on the coat = (Profit on the coat / Cost of the coat) * 100
= (£31.5 / £14) * 100
≈ 225%
Therefore, Leonie made a percentage profit of approximately 225% on the cost of the coat.
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If 8 km = 5 miles, convert 350 miles into km.
Answer:
560 is your answer... I hope it helps
the pre image of a line has the equation y=-7x. this line is translated -5 units along the x-axis and the 8 units along the y-axis. which is the equation of the image of this line?
ill mark you brainliest if youre right
Answer:
(b) y = -7x -27
Step-by-step explanation:
When x and y in the equation y = f(x) are replaced by (x-h) and (y-k), the function graph is translated h units right and k units up. The translated function can be written as ...
y -k = f(x -h)
y = f(x -h) +k . . . . . . add k
__
Your function is ...
y = -7x
and you want to translate it by (h, k) = (-5, 8). That makes it ...
y' = -7(x -(-5)) +8 = -7x -35 +8
y' = -7x -27
If the following jobs are sequenced according to the SLACK rule then job A would be completed on day (assume zero for today's date)
Job - Processing Time (days) - Due Date
A 8 12
B 6 15
C 11 17
D 7 10
E 3 8
Select one: A. 7. B. 15. C. 8. D. 12.
If the jobs are sequenced according to the SLACK rule, Job A would be completed on day 12.
The SLACK rule involves calculating the slack time for each job, which is the difference between the due date and the completion time. The job with the least slack time is prioritized and scheduled first. In this case, the due dates for the jobs are as follows: Job A (12), Job B (15), Job C (17), Job D (10), and Job E (8).
Job A has a processing time of 8 days and a due date of 12, so the slack time is 12 - 8 = 4 days. Since Job A has the least slack time among all the jobs, it would be completed on day 12. Therefore, the answer is D. 12.
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The main rhetorical effect of the series of three phrases beginning in line 3 ("the diminution, the subversion, the destruction") is to *
convey with increasing intensity the seriousness of the threat Jordan sees to the
Constitution.
clarify that Jordan believes the Constitution was first weakened, then sabotaged, then
broken.
indicate that Jordan thinks the Constitution is prone to failure in three distinct ways.
propose a three-part agenda for rescuing the Constitution from the current crisis.
The three phrases beginning in line 3 are meant to convey an escalating sense of urgency that Jordan believes the Constitution is facing.
What is number?
Number is a concept used to describe a quantity or amount. It is used to quantify and identify objects, ideas, and events in the physical and non-physical world. Numbers are used to measure, count, compare, and describe objects, events, and ideas. In mathematics, numbers are used to represent abstract concepts and to solve equations.
He begins by discussing the "diminution" of the Constitution, which suggests that it is being whittled away and weakened. This is followed by "the subversion," which implies a deliberate effort to undermine and corrupt the Constitution. Finally, Jordan mentions "the destruction," which suggests that the Constitution is being broken beyond repair. Together, these three phrases demonstrate Jordan's belief that the Constitution is facing a serious and worsening crisis.
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Rewrite one eighteenthx3y + seven eighteenthsxy2 using a common factor.
one thirdxy(6x2 + 7y)
one thirdx2y(6x2 + 9y)
one eighteenthxy(x2 + 7y)
one eighteenthx3y2(y + 7)
Answer:
C
Step-by-step explanation:
1/18 x³y + 7/18 xy²
1/18 xy (x² + 7y)
The Edison Lightbulb Company tests 5% of their daily production of lightbulbs. If 500 bulbs were test on Tuesday, what was the total number of bulbs produced that day?
Answer:
1,000 lightbulbs that day were tested
Step-by-step explanation:
PLZ HELP 10POINTS EASY HELP!!!!!!!!!!
Answer:
2nd no is corret
Step-by-step explanation:
as altitude is defined as a st. line meeting its base forming 90degree angle.
Answer:
I think the second answer, JH is an altitude of GJI, is the correct answer.
Step-by-step explanation:
Having JH be an altitude of GJI means that it makes a 90 degree angle. And to prove that it's a 90 degree angle we look at where it has the little squares. The squares represent 90 degrees.
Hope this helps!
Someone please help me
\(( {9x}^{2} - 4)( {9x}^{2} + 4) \\ (3x - 2)(3x + 2)( {9x}^{2} + 4)\)
Find the slope of the line.
Answer:
slope of the line is 2
Step-by-step explanation:
formula:
slope=m=(y2-y1)/(x2-x1)
plug the values in:
m=(9-3)/(2-(-1))
simplify:
m=6/3
divide:
m=2
please help. Will give BRAINLIEST!!!!!
Answer:
√13
Step-by-step explanation:
if you try Pythagorean's theorem for each one, you should get that √13 doesn't work.
Answer:
13
Step-by-step explanation:
if 3,a-1,a+1 and 5 are pproportional,then a =?
Answer:
a = ± 4
Step-by-step explanation:
Expressing the proportion in fractional form
\(\frac{3}{a-1}\) = \(\frac{a+1}{5}\) ( cross- multiply )
(a -1 )(a + 1) = 15 ← expand factors on left side
a² - 1 = 15 ( add 1 to both sides )
a² = 16 ( take the square root of both sides )
a = ± \(\sqrt{16}\) = ± 4
Graph the inequality. -2
Part B
The chess club started with 18 chess sets. The teachers ordered 3 cases of 15 chess sets. They will divide the total number of chess sets so that each teacher receives an equal number. Then they will give any extra sets to the school library.
What is the greatest number of chess sets each of the 4 teachers should get?
Enter your answer in the box.
In the fraction , the greatest number of chess sets each of the 4 teachers should get is 15.
What is fraction?
Part of a whole is a fraction. The quantity is written as a quotient in mathematics, where the numerator and denominator are divided. Each is an integer in a simple fraction. Whether it is in the numerator or denominator, a complex fraction contains a fraction. The numerator and denominator of a correct fraction are opposite each other.
Here the In starting number of chess sets = 18
Ordered number of chess set cases = 3
In each case number of chess sets= 15
Then total number of ordered chess sets = 3*15 = 45.
Now total number of chess set in chess club = 45+18 = 64.
The number of teacher = 4.
Then expression is ,
The number of chess sets each of the 4 teachers should get = 63/4 = 15 \(\frac{3}{4}\)
Remaining set = 3.
Hence the greatest number of chess sets each of the 4 teachers should get is 15.
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Ginger the cat weighed 25lbs! The vet put Ginger on a diet and by the end of the month, Ginger weighed 20lbs. What percentage of her weight did Ginger loose? She lost of her weight.
Answer:
20%
Step-by-step explanation:
25 divided by 5 is 5 and in fractions 1/5 is 20 therefore 20% for every 5 pounds so if you lose 5 pounds you lost 20% of her weight.
Answer:
ana totta
Step-by-step explanation:
David read12of a book in the morning, and he read some more at night. By the end of the day, he still had15of the book left to read. How much of the book did David read at night?
Answer:
Fifteen fifteen fifteen fifteen fifteen
Fifteen fifteen fifteen fifteen fifteeb
a researcher determines that there is a positive correlation between sleep and test scores; this means that as the amount of sleep is increased, then test scores will: group of answer choices increase. decrease. remain the same. cannot be determined.
A researcher determines that there is a positive correlation between sleep and test scores; this means that as the amount of sleep is increased, then test scores will increase.
In statistics, when two variables have a positive correlation, it means that they tend to increase or decrease together. It means that if one variable increases, the other one increases as well. The opposite is also true; if one variable decreases, the other one also decreases. A correlation coefficient is used to quantify the degree of relationship between two variables. If the correlation coefficient is positive, it means that the variables are positively correlated, and if it is negative, it means that they are negatively correlated. As per the given information, there is a positive correlation between sleep and test scores. This implies that if the amount of sleep is increased, then test scores will also increase. It is because sleep is essential for brain function, and when we sleep, our brain consolidates and processes information from the day before, which helps us to perform better on cognitive tasks like tests. So, the answer is "increase."
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As the amount of sleep is increased, then test scores will also increase.
A positive correlation between sleep and test scores indicates that as the amount of sleep is increased, then there is a corresponding increase in test scores. In other words, when the independent variable (amount of sleep) increases, the dependent variable (test scores) increases as well. Therefore, the answer to the question would be that as the amount of sleep is increased, then test scores will increase.
Therefore, as the amount of sleep is increased, then test scores will also increase.
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