Answer:
A) -3
Step-by-step explanation:
To evaluate this mathematical expression, we must follow the following steps:
Perform the operation between parentheses: (0-1) = -1
Multiply the previous result by 2: -1 * 2 = -2
Add 1.5 to the previous result: -2 + 1.5 = -0.5
Therefore, the correct answer to the mathematical expression is A) -3.
I need help with this please
Answer:
D) 48
Step-by-step explanation:
area = length x width x height
8 x 2 x 3
16 x 3 = 48
evaluate 3/2 +(-k) +(-2) where = 5/2
Answer:
- 3
Step-by-step explanation:
Step 1:
3/2 + ( - k ) + ( - 2 ) Equation
Step 2:
3/2 + ( - 5/2 ) + ( - 2 ) Substitute k
Step 3:
3/2 - 5/2 - 2 Open Parenthesis
Step 4:
- 1 - 2 Subtract
Answer:
- 3 Subtract
Hope This Helps :)
6 Item 6 For a specific species of fish in a pond, a wildlife biologist wants to build a regression equation to predict the weight of a fish based on its length. The biologist collects a random sample of this species of fish and finds that the lengths vary from 0.75 to 1.35 inches. The biologist uses the data from the sample to create a single linear regression model. Would it be appropriate to use this model to predict the weight of a fish of this species that is 3 inches long
Answer:
Yes, because the regression equation is based on the random sample.
Step-by-step explanation:
A simple linear regression model that describes the relationship between X and Y takes the form
Yi= ∝ + βXi + εi or
Y i= U(y.x) + εi
where εi's are the random errors. The random errors εi's are assumed to be independent of Xi and normally distributed with E(εi)= 0 and Var (εi)= σ²(y.x) , a constant for all Xi. These assumptions imply that Yi also have a common variance σ²(y.x) , as the only random element in the is εi.
The estimated regression line Y= a+ bX is also the predictor of Yi= ∝ + βXi+ εi
. That is Y^ can also be used to predict an individual value Y0 of Yi rather than a mean value, corresponding to the given X0. To draw the inferences about Y0 we need to know it mean and variance.
Find the missing dimension of the cylinder. Round your answer to the nearest whole number.
Please help!
Answer:
4 in to the nearest whole number.
Step-by-step explanation:
Volume of a cylinder = π r^2 h
Here Volume = 25 in^3 and r = 1/2 * 3 = 1.5 in.
So: 25 = π * 1.5^2 * h
25 = 2.25π h
h = 25 / 2.25π
h = 3.54 in
Which net represents this solid figure?
________________________________
(reporting wrong/spam answers)
(giving brainliest to the correct answer)
_________________________________
Answer:
D.
Hope this helps!
Step-by-step explanation:
A and C are both squares and B is a rectangle but is different because the values are in different spots than the on the solid figure shown.
2+8+5+9+90=
3+45+111=
Answer:
1) 114
2) 159
Step-by-step explanation:
2+8+5+9+90 = 114
3+45+111 = 159
Hope this helps.
Answer:
1)144
2)159
..........
50 Points! Multiple choice geometry question. Photo attached. Thank you!
The coordinates of vertex D in the parallelogram are (-7, -10).
We have,
To find the coordinates of vertex D of the parallelogram, we need to use the properties of a parallelogram.
One of these properties states that opposite sides of a parallelogram are parallel and have equal lengths.
Given that A = (8, 2), B = (6, -4), and C = (-5, -4), we can find the coordinates of D as follows:
Find the vector representing one of the sides of the parallelogram.
We can use the vector AB.
Vector AB = (x-coordinate of B - x-coordinate of A, y-coordinate of B - y-coordinate of A)
= (6 - 8, -4 - 2)
= (-2, -6)
Add this vector to point C to find the coordinates of D.
Coordinates of D = (x-coordinate of C + x-coordinate of AB, y-coordinate of C + y-coordinate of AB)
= (-5 - 2, -4 - 6)
= (-7, -10)
Therefore,
The coordinates of vertex D are (-7, -10).
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I'm doing a project for math where I have to come up with a real-life story problem using the Pythagorean theorem. I need to write a story problem of finding a leg.
Please help me
I'll give brainiest
Answer:
One of the sails on your ship is a right triangle and your friend, the one who made the sail, had forgotten one of the legs but tells you that the height is 4ft and the hypotenuse of the sail is 5ft. What is the missing leg?
Step-by-step explanation:
Help please!! Thank youuuuu!!!
I’ll give brainliest if you show work as well.
The value of x from given parallel lines is 2.
In the given figure, three lines are parallel and two lines are passing through.
When three or more parallel lines are cut by two transversals, the line segments formed are proportional.
That is, 2x/x = (x+4)/(4x-5)
2/1 = (x+4)/(4x-5)
2(4x-5)=1(x+4)
8x-10=x+4
8x-x=4+10
7x=14
x=2
Therefore, the value of x from given parallel lines is 2.
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Given f(x) = -3x + 5, solve for x when f(x) =
- 4.
Answer:
x = 3
Step-by-step explanation:
Step 1: Define
f(x) = -3x + 5
f(x) = -4
Step 2: Substitute and Evaluate
-4 = -3x + 5
-9 = -3x
x = 3
Answer:
3 =x
Step-by-step explanation:
f(x) = -3x + 5
Let f(x) = -4
-4 = -3x+5
Subtract 5 from each side
-4-5 = -3x+5-5
-9 = -3x
Divide each side by -3
-9/-3 = -3x/-3
3 =x
There are 5 cows in the barn. There are 8 more cows in the field than in the barn. How many cows are in the field.
Answer:
13 cows
Step-by-step explanation:
There are 5 cows in the barn and 8 more cows on the field than in the barn, so we can add 5 and 8.
5 + 8 = 13 cows are on the field.
Answer:
13 is the awnser
Step-by-step explanation:
5+8=13
The right rectangular prisms are similar. which statements are correct? check all that apply. the angles in the smaller prism measure 90 degrees. the perimeter of the rectangular bases changes by a factor of 2. the surface area changes by a factor of 8. the larger prism has twice the volume of the smaller prism. the area of the rectangular bases changes by a factor of 4.
The true statement about the right rectangular prisms include:
The angles in the smaller prism measure 90 degrees. The perimeter of the rectangular bases changes by a factor of 2.The rectangular bases changes by a factor of 4.How to illustrate the prism?It should be noted that a prism simply means a shape that has two identical shapes that face each other.
Here, the angles in the smaller prism measure 90 degrees and the perimeter of the rectangular bases changes by a factor of 2.
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Answer:
1,2, and 5
Step-by-step explanation:
A bag of marbles has 12 green marbles, 5 red marbles, 8 blue marbles and 7 yellow marbles. What is the probability of randomly selecting a blue marble?
Probability = # of desired options / # of total options
Our desired option is blue and there are 9 blue marbles in the bag.
There are 32 total marbles (options) in the bag.
P(blue) = 9 / 32 = 0.28125 = 28.125%
Hope this helps!
What is (I^2)+(I^2)+3x if x=I^2?
Show your work.
Answer:
-5
Step-by-step explanation:
(i^2) = -1 so -1 -1 + 3x = 3x - 2. If x = i^2 = -1, then 3x = -3. -3 - 2 = -5
What values of b satisfy 3(2b + 3)² = 36?
Answer:
The values of b that satisfy the equation are:
b = (2√3 - 3) / 2
b = (-2√3 - 3) / 2
In other words, b can take the values (2√3 - 3) / 2 or (-2√3 - 3) / 2.
Step-by-step explanation:
To find the values of b that satisfy the equation 3(2b + 3)² = 36, we can solve for b by following these steps:
1. Divide both sides of the equation by 3:
(2b + 3)² = 12
2. Take the square root of both sides:
√[(2b + 3)²] = √12
Simplifying further:
2b + 3 = ±√12
3. Subtract 3 from both sides:
2b = ±√12 - 3
4. Divide both sides by 2:
b = (±√12 - 3) / 2
Simplifying further:
b = (±√4 * √3 - 3) / 2
b = (±2√3 - 3) / 2
Therefore, the values of b that satisfy the equation are:
b = (2√3 - 3) / 2
b = (-2√3 - 3) / 2
In other words, b can take the values (2√3 - 3) / 2 or (-2√3 - 3) / 2.
solve the system of equations
y-5=x
x=-2-y y = ( , )
Answer:
y=1.5
x=-3.5
Our answer is (-3.5,1.5)
Step-by-step explanation:
y-5=x
x=-2-y
y=?
--------
Using substitution,
y-5=-2-y
Solve:
2y-5=-2
2y=3
y=1.5
We can enter 1.5 into the equation:
1.5-5=x
-3.5=x
I need to find how much Julia will pay so I have to solve for 3x+5y=50X+5y=31 but if I do that The answer that it gives me I can’t plug it in because is in ( 19/2,43/10) but I need Ane specific answer how can I solve for this ?
The first step is to find the values of x and y. From the information given,
x is the cost of an adult ticket and y is the cost of a child ticket. The system of equations is shown below
3x + 5y = 50
x + 5y = 31
From the second equation,
x = 31 - 5y
We would substitute x = 31 - 5y into 3x + 5y = 50. We have
3(31 - 5y) + 5y = 50
By expanding the parentheses, we have
93 - 15y + 5y = 50
- 15y + 5y = 50 - 93
- 10y = - 43
Dividing both sides of the equation by - 10,
- 10y/- 10 = - 43/- 10
y = 4.3
Substituting y = 4.3 into x = 31 - 5y, we have
x = 31 - 5 * 4.3 = 31 - 21.5
x = 9.5
If an adult ticket costs $9.5, then the cost of 4 adult tickets is
4 x 9.5 = $38
The difference between two prime numbers is 17. What is their sum?
Answer:
2y + 17
Step-by-step explanation:
x and y will be used to represent the prime numbers
x is the larger,
y is the smaller
x - y = 17
that means that
x = y + 17
so then
x + y
= y + 17 + y
= 2y + 17
more information must be given to solve this problem, but for now, a general equation is
2y + 17
Determine the measures of the arcs and angles:
*It may help to find all central angle measures before answering the hotspots.
If you do any calculating, you can type that into the hotspot with your final answer.
m HE
m HD
m DG
m EG
m < DEG
m < HGE
The values of the arc length and angles are:
HE = 62
HD = 118
DG = 62
EG = 118
∠DEG + ∠HGE = 62
We have,
The central angle is equal to the intercepted arc length.
So,
62° = HE
And,
∠A = HD
∠A + 62 = 180
∠A = 180 - 62
∠A = 118
HD = 118
And,
DG = ∠M (say)
∠A + 118 = 180
∠M = 180 - 118
∠M = 62
DG = 62
And,
∠A is opposite to ∠N (say)
So,
∠A = ∠N = 118
∠A = EG
EG = 118
And,
From the definition of the exterior angle.
∠DEG + ∠HGE = 62 ______(1)
Also,
The sum of the three angles in AEG = 180
∠EAG + ∠DEG + ∠HGE = 180
∠EAG = 180 - 62 = 118
So,
∠DEG + ∠HGE = 180 - 118
∠DEG + ∠HGE = 62 _______(2)
Thus,
HE = 62
HD = 118
DG = 62
EG = 118
∠DEG + ∠HGE = 62
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Use the theoretical method to determine the probability of the outcome or event given below.
The next president of the United States was born on Monday
Answer:
\(\frac{1}{7}\) probability that the next president of the United States was born on Monday
Step-by-step explanation:
A theoretical probability is given by the number of desired outcomes divided by the number of total outcomes.
The next president of the United States was born on Monday
Any person, including the next president of the United States, can be born on 7 possible days: Sunday, Monday, Tuesday, Wednesday, Thursday, Friday or Saturday, one of which is Monday.
So
\(\frac{1}{7}\) probability that the next president of the United States was born on Monday
write an equation of the line that passes through the points (0,-2),(3,13)
Answer: y = 5x-2
Step-by-step explanation:
Convert 15,840 feet into miles. (1 mile = 1,760 yards; 1 yard = 3 feet)
Answer: 3.00170455 miles
Step-by-step explanation:
Answer:
3 miles
Step-by-step explanation:
graph h(x)=(x-1)^2-9
The graph of h(x) = (x-1)^2 - 9 is a U-shaped parabola that opens upwards, with the vertex at (1, -9), and it extends indefinitely in both directions.
The function h(x) = (x-1)^2 - 9 represents a quadratic equation. Let's analyze the different components of the equation to understand the behavior of the graph.
The term (x-1)^2 represents a quadratic term. It indicates that the graph will have a parabolic shape. The coefficient in front of the quadratic term (1) implies that the parabola opens upwards.
The constant term -9 shifts the graph downward by 9 units. This means the vertex of the parabola will be at the point (1, -9).
Based on this information, we can draw the following conclusions:
The graph will be a U-shaped curve with the vertex at (1, -9).
The vertex represents the minimum point of the parabola since it opens upward.
The parabola will be symmetric with respect to the vertical line x = 1 since the coefficient of the quadratic term is positive.
The graph will extend indefinitely in both directions.
To accurately plot the graph, you can choose several x-values, substitute them into the equation to find the corresponding y-values, and then plot the points on the graph. Alternatively, you can use graphing software or calculators that can plot the graph of the equation for you.
Remember to label the axes and indicate the vertex at (1, -9) to provide a complete representation of the graph of h(x) = (x-1)^2 - 9.
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Please help! The interest rate on a five year $8000 loan is 3%. Use the formula A=P*I^t, where P is the principle, I is the interest, and t is the term.
What is the remainder when 16,055 is divided by 16? (Input numeric values only)
it can't be on a calculator
because you get the wrong number on there thenk you
Answer:56
Step-by-step explanation:
with 16 into 55 do that math then put the number you got then put it into another 16 boom 56
What is the product of 9,028 x 100,000 written in expanded form
Answer:
902,800,000
Step-by-step explanation:
902800000, is the product of 9,028 x 100,000.
What is multiplication?In mathematics, multiplication is a method of finding the product of two or more numbers. It is one of the basic arithmetic operations, that we use in everyday life.
Here, given that,
9,028 x 100,000
=902800000
Hence, 902800000, is the product of 9,028 x 100,000.
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Solve for m.
-3 + m
9
= 10
Answer:
m= 9√13
Step-by-step explanation:
Take the root of both sides and solve.
Hope this helps.
please please help its timed -H.M
Answer:
1
General Formulas and Concepts:
Algebra I
Functions
Function NotationStep-by-step explanation:
Step 1: Define
f(-2)
Step 2: Evaluate
f(-2) is x = -2 for function f(x).
According to the table, when x = -2, f(x) = 1.
∴ f(-2) = 1
Gordon Miller's job shop has four work areas, A, B, C, and D. Distances in feet between centers of the work areas are: A B C D A − 5 9 7 B − − 6 8 C − − − 11 D − − − − Workpieces moved per week between work areas are: A B C D A − 900 900 500 B − − 500 200 C − − − 600 D − − − − It costs Gordon $22 to move 1 work piece 1 foot.What is the weekly total material handling cost of the layout?
Answer: $600,600
Step-by-step explanation:
Total handling cost :
Workpiece moved * cost * distance
Work area A :
-, (5 × 22 × 900), (9 × 22 × 900), (7 × 22 × 500)
-, 99000, 178200, 77000
Work area B:
-, -, (6 × 22 × 500), (8 × 22 × 200)
-, -, 66000, 35200
Work area C:
-, -, -, (11 × 22 × 600)
-,-,-, 145200
Work area D:
-, -, -, -
Total weekly handling cost :
(99000 + 178200 + 77000 + 66000 + 35200 + 145200)
= $600,600
Kindly check attached picture for more explanation
A student wants to earn a C for a class. To get this grade, the average of his six test scores must be 70.
He has the following grades on five tests:
60,78,65,68,72
What grade must the student get on the next test so that the average of his scores is 70?
Answer: To find out what grade the student must get on the next test, we can use the following formula:
(current total of scores + desired score) / (total number of scores) = desired average
We know that the student's current total of scores is 60 + 78 + 65 + 68 + 72 = 363, and the desired average is 70. We also know that the student has taken five tests, so there is one test remaining.
Therefore, we can plug in these values into the formula:
(363 + x) / 6 = 70
Where x is the grade the student must get on the next test.
We can solve for x by multiplying both sides of the equation by 6:
363 + x = 420
x = 57
Therefore, the student must get a grade of 57 on the next test in order to have an average of 70.
Step-by-step explanation: