Mathematics High School

What is f(-3) for f(x)=2x^2-x+5?

A).11
B).17
C).20
D).26

Answers

Answer 1

Answer:

Step-by-step explanation:

f(x) = ((2 • 32) - 3) + 5

f(x) = ((2•32) - 3) + 5

f(x) = 20

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Related Questions

what is the quotient of 0.12/24.12

Answers

Answer:

0.00497512437

Step-by-step explanation:

but make sure to round it. it should be 0.005 rounded to the nearest thousandth place but make sure if im correct im not too sure.

Which table represents a nonlinear function?
A.
x y
2 -9
4 1
6 11
B.
x y
2 -14
4 -16
6 -18
C.
x y
2 0
4 6
6 16
D.
x y
2 -9
4 -6
6 -3

Answers

Answer:

C. 2 -9

4 -6

6 -3

Step-by-step explanation:

Answer:c

Step-by-step explanation:

A recipe used 1/2 cup of sour cream for every 1/4 teaspoon of salt. What is the unit rate of teaspoons of salt per cup of sour cream?

Answers

Answer:

1/2 teaspoons of salt per cup of sour cream

Step-by-step explanation:

multiply 1/2 and 1/4 by 2 to get 1 and 1/2. Since the question is teaspoons of salt per cup of sour cream, flip the numbers to get 1/2 teaspoons of salt per 1 cup of sour cream.

Simplified or expanded version of 8(4x-12)

Answers

Answer: 32x - 96

Step-by-step explanation: If I’m not wrong, that’s the answer. You distribute the 8 to each of the numbers, so you multiply. 8 multiplied by 4x would be 32x. 8 multiplied by 12 is 96. You then put the subtraction sign in. You could also think of it as 8 times -12. That’ll still get you -96. It would be 32 and the negative 96, so it seems like the negative is the subtraction sign. I suck at explaining, but I hope thing helps

The vertices of a triangle are, A (2, 5) B (1, 2) C (3, 1),. Find the coordinates of the image after a
reflection in the x-axis, and then a rotation 90° counterclockwise about the origin.

Answers

Answer:

The images are;

A’ (5,2) B’ (2,1) and C’ (1,3)

Step-by-step explanation:

Firstly, we want to reflect across the x-axis

When we reflect a point (x,y) over x-axis, we get (x,-y)

So;

A ( 2,5) becomes (2,-5)

B (1,2) becomes (1,-2)

C ( 3,1) becomes (3,-1)

Then we proceed to rotate 90 degrees counterclockwise about the origin

Here we have;

(x,y) becomes (-y,x)

(2,-5) becomes (5,2)

(1,-2) becomes (2,1)

(3,-1) becomes (1,3)

Answer:

A’ (5,2) B’ (2,1) and C’ (1,3)

Step-by-step explanation:

Firstly, we want to reflect across the x-axis

When we reflect a point (x,y) over x-axis, we get (x,-y)

So;

A ( 2,5) becomes (2,-5)

B (1,2) becomes (1,-2)

C ( 3,1) becomes (3,-1)

Then we proceed to rotate 90 degrees counterclockwise about the origin

Here we have;

(x,y) becomes (-y,x)

(2,-5) becomes (5,2)

(1,-2) becomes (2,1)

(3,-1) becomes (1,3)

2. Addison bought 9 pumpkin pies for $27. How much will she pay for 11 pumpkin pies? Use numbers and words to explain your answer.

Answers

Answer:

$33

Step-by-step explanation:

Since 9 pies is 27 dollars that means you have to divide 27 by 9 to find out what 1 pie costs

1 pie ends cause costing $3

now you multiply the cost for 1 pie and 11 so it comes out to be $33

It is 33 doll hairs
Ksosksos

can y’all help please :)

Answers

number three ? I’m not sure

HELP PLEASE!! I NEED TO GET THIS TURNED IN

Answers

Answer:

the 10.5

Step-by-step explanation:

it is lower than the other cost if it is multiplied by three and bigger amount than the other if multiplied by three

Help me pls what is the perpendicular line

Answers

Answer:

-2

Step-by-step explanation:

What value of x makes this equation true?
x/3 - 3 = x/9 + 3

Answers

Answer:

x = 27

Step-by-step explanation:

hope this helps :)

There are three positive consecutive integers where the first number times the second number is 7 more than the third number. Find the sum of all 3 integers.

Answers

Given that,

The three numbers are consecutive

The three numbers are

x + 1

x + 2

Also,

x × (x + 1) = (x + 2) + 7

x² + x = x + 9

x² + x - x = 9

x² = 9

x = √9

x = 3

The three numbers

x = 3

x + 1 = 4

x + 2 = 5

The sum of the three numbers

3 + 4 + 5 = 12

What is the answer to 2r – 1 ≥ ‐3(r + 7)?

Answers

Answer:

r>−4

Step-by-step explanation:

Identify the set of ordered pairs that represents y as a function of x.

{(0, 0), (1, 1), (2, 3), (3, 3)}

{(−1, 0), (1, 0), (3, 0), (3, 4)}

{(1, 0), (2, 0), (3, 3), (3, 4)}

{(0, 0), (0, 1), (2, 3), (3, 4)}

PLEASE HELP ILL MAKE BRAINLIEST!!!!!

Answers

Answer:

The first one because every x value can only have one y value

Step-by-step explanation:

The set of ordered pairs that represents y as a function of x are; {(0, 0), (1, 1), (2, 3), (3, 3)}

We must be aware that, dependent variable, y can only be a function of x if;

For every value of x, there must only be one value of y.

In essence,

For case 1:

y is a function of x, because for every value of x, there's only one value of y.

For Case 2:

y is not a function of x, because there's two values of y for a value of x.

For Case 3:

y is not a function of x, because there's two values of y for a value of x.

For Case 4:

y is not a function of x, because there's two values of y for a value of x.

https://brainly.com/question/16865982

Write the vocabulary word for this definition:

The number of units or spaces away a number is from zero

Answers

Answer:

i am not sure but may be ...absolute value

Please help me I need help please?

Answers

A linear function is a function that creates a straight line when graphed. The difference between this graph and others is that this function is constant instead of curved. I’d like to see an example of this in the real world as a relationship between profit and merchandise.A quadratic function is a function that has multiple variables allowing the graph to curve. The difference between this function and the others is that this function is squared allowing for a greater curve that looks like a U. I’d like to see a example of this in the real world as missiles being launched since the curve is similar.A exponential function is a function in which the function grows at a fast rate. The difference between this function and the others is that this function curves in a constant rate then the x increases continuously. I’d like to see an example of this in the real world as the interest in a bank since it increases per month.

The perimeter of a 6-sided figure is 67.74 meters. Two of the sides have the same length. The sum of the other 4 side lengths is 36.4 meters. About how long is each of the same-side lengths?

Answers

31.41 that the answer

Each of the same-side lengths is 15.67.

What is perimeter?

It is the sum of length of the sides used to made the given figure.

We have been given that the perimeter of a 6-sided figure is 67.74 meters. Two of the sides have the same length. And the sum of the other 4 side lengths is 36.4 meters.

Let the same side be a.

The perimeter of the figure = 6 x side

The perimeter of the figure = 2a + 36.4

67.74 = 2a + 36.4

2a = 67.74 - 36.4

2a = 31.34

a =15.67

Therefore, each of the same-side lengths is 15.67.

Learn more about perimeter here:

https://brainly.com/question/10466285

#SPJ2

PLEASE HELP WITH THIS, ITS FOR A TESTTT

Answers

14x + 21

Hopefully this helps!

Answer:

The answer is C

Step-by-step explanation:

Distribute first then combine like terms

Sarah uses long division to convert a rational number x/y to its decimal form. Which of the following statement cannot be true?

Answers

What’s the equation look like ?

PLZ HELP ANSWER IMEDIATLY!!!!!!!! 55 POINTS A line goes through the points (7, 3) and (–1, 5). Write the equation of the line in point-slope form. Show your work for full credit. (How did you go from those two points to having the equation in point-slope form?)

Answers

Answer:not sure

Step-by-step explanation:

Which of the following volumes represent a perfect cube? Check all that apply. 1 in.3 4 in.3 8 in.3 12 in.3 25 in.3 27 in.3 64 in.3

Answers

Answer:

A, C, F, G (1 in.^3, 8 in.^3, 27 in.^3, 64 in.^3.)

Step-by-step explanation:

Answer:

Step-by-step explanation:

I got it right on the question.

An angle measures 90º more than the measure of its supplementary angle. What is the measure of each angle?

Answers

Is the a shape. I assume the 90 degree angle is a right angle and the others are also 90

Answer:

theyre both 90 degrees because supplementary angles always add up to 180

PLEASE HELP ;)
Who did it right?

Find the slope of the line perpendicular to 2x+3y=8

Answers

Answer:

Marissa.

Step-by-step explanation:

To find perpendicular slope you basically take the slope of the given line and reverse whatever sign it had previously. (If it was negative, it would become positive. If it was positive it would become negative.)

By doing -A/B it make the previous slope negative.

Brandon only flipped the fraction which would just result in the slope being slightly steeper, or in this case, less steep than the previous line, rather than making it perpendicular.

Hope this helps! Stay safe and if you have any questions feel free to ask!

which number is bigger 1.59 or 1.955

Answers

Answer:

1.955 is bigger

Step-by-step explanation:

1.955>1.59

Answer:

1.955

Step-by-step explanation:

This is because the number after the decimal in 1.955 is 9, which is bigger than the 5 shown in 1.59

Will mark branilest!!

Answers

Answer:

Step-by-step explanation:

(This is math. Is that question supposed to be math? I'm not sure)

Dustin rides his bike for 176.25 miles in three weeks. He averaged 11.75 miles per hour each time he rode. How many hours did it wake him to ride 176.25 miles?

Answers

176.25÷11.75=15 hours

HELP ME PLEASE!!!!!!!!!!!!

Answers

Answer:

Question 6: C or 1/3

3 toppings times 2 flavors=6 types in all

you can get chocolate or vanilla yogurt with sprinkles. This gives u 2/6 or 1/3

Question 11: 2/9 + x = 1

x= 7/9

Step-by-step explanation:

Question 11: 2/9 + x = 1

x= 7/9

Question 6: 3 toppings times 2 flavors=6 types in all

you can get chocolate or vanilla yogurt with sprinkles. This gives u 2/6 or 1/3

5y - 4x = -7
2y + 4z = 14
Solve for x and y

Answers

Answer:

et's solve for x.

5y−4x=−72y+4z

Step 1: Add -5y to both sides.

−4x+5y+−5y=−72y+4z+−5y

−4x=−77y+4z

Step 2: Divide both sides by -4.

−4x

−4

−77y+4z

−4

y−z

Answer:

y−z

Let's solve for y.

5y−4x=−72y+4z

Step 1: Add 72y to both sides.

−4x+5y+72y=−72y+4z+72y

−4x+77y=4z

Step 2: Add 4x to both sides.

−4x+77y+4x=4z+4x

77y=4x+4z

Step 3: Divide both sides by 77.

77y

4x+4z

Answer:

Step-by-step explanation:

I think that can help :) wanna chat add me as friend

Answer:

1.)x=5/4y+7/4

2.) y=−2z+7

Step-by-step explanation:

A partial proof was constructed given that MNOP is a parallelogram.

Which statement should fill in the blank in the last line of the proof?

A. angle M is supplementary to angle O.

B. angle N is supplementary to angle P.

C. angle M is congruent to angle P

D. angle N is congruent to angle P.

Answers

Answer:

Step-by-step explanation:

B. angle N is supplementary to angle P

Answer:

Step-by-step explanation:

Amica surveyed 100 students in sixth grade about their favorite sports.
1\5 of the students said basketball was their favorite sport

3/4of the students said baseball was their favorite sport
• The remaining students said they didn't like any sports

How many students said they didn't like any sports

0 75
O 20
O 55
O 5

Answers

Answer:

Step-by-step explanation:

Add 1/5 + 3/4. Answer: 19/20 likes sports.

The graph below shows the relationship between the number of hours and the
number of miles jogged.
Y
16
15
14
13
12
11
10
9
Miles
8
3
2
2
3
5
6
Hours
Based on the information in the graph, what is the unit rate in miles per hour?

Answers

Answer:

2.5

Step-by-step explanation:

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What is f(-3) for f(x)=2x^2-x+5? A).11 B).17 C).20 D).26

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What is f(-3) for f(x)=2x^2-x+5?

A).11
B).17
C).20
D).26