Mathematics College

f(x) = x2 - 4; f(-3)



Answers

Answer 1
U want this simplified???

Related Questions

Heather bought a shirt on sale for 45% off the regular price of $22.60. What was the sale price of the shirt not including tax?

Answers

Hi! I believe your answer is $10.17 because 45% of 22.60 is 10.17. I hope this helps you! Good luck and have a great day. ❤️ (Stream "Heather" by Conan Gray!)

(9, - 4) and (5, 3) In simplest radical form

Answers

Answer: 33

Step-by-step explanation:

(9,-4) and (5,3)

=9*5+(-4)*3

=33

Please solve this system : x+y+z=-3 3y-z+\=4 2x-y-2z=-5

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the solution is x=-3, y=1, z=-1

what is the value of x^2+4 for x=5​

Answers

Answer:

25+4=29

thats your answer

PLEASE MARK AS THE BRAINLIEST

Answer:

29

Step-by-step explanation:

x^2+4

Let x= 5

5^2 +4

25+4

29

HELPPS PLEASE FOR BRIANILIST

Answers

0.80¢ answer i’m pretty sure

Find DF
D
20
E 10 F
DF =

Answers

Answer:

30

Step-by-step explanation:

it is right

it’s 30!

bc DE is 20 and EF is 10, if DF is the entire segment, then you would add 20 & 10, to get 30.

answer 2 questions about equations A and B.
A. 5=-2(x-1)
B. 5=-2x+2
1. how can we get equation B from equation A?
A. rewrite one side (or both) by combining like terms
B. rewrite one side (or both) using distributive property
C. multiply or divide both sides by the same non zero constant.
D. multiply or divide both sides by the same variable expression.
2. based on the previous answer, are the questions equivalent? in other words do they have the same solution?
Yes or No​

Answers

Answer:

B.

Step-by-step explanation:

I'm not sure how to answer the 2. question

Bone-shaped treats are 5 for $3.50 at Shelley’s store and Sarah wants to buy 12. She set up and solved this proportion to find how much they would cost. Describe her error and find the correct solution.

5
3.5
=
12
x
3.5x = 60
x = $17.15

Answers

Answer:

Sarah multiplied the denominator by the denominator and the numerator by the numerator instead of finding the cross products. The equation should be 5x = 42, so the cost should be $8.40.

Step-by-step explanation:

I need help ASAP with this question

Answers

So the rate of change is the same as the gradient, or the slope.
To work out this you need to do the change in y/ the change in x.
So we take 2 points you are given in the table- e.g (1,5) and (2,1)
So the change in y is from 5 to 1 so it is -4 and the change in x is from 1 to 2 so is 1.

Then you have -4/1 which is just -4.

Let me know if you have any questions!

How many significant figures are in the number: 800

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Answer:

1

Step-by-step explanation:

The zeros after 8 are not significant.

841/4 how much is it

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Answer:

210.25

Step-by-step explanation:

841/4=210.25


Which of the following is the radical expression of?

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Answer:

The third answer

Step-by-step explanation:

Remember power over root and the 2 would not be under the root.

Answer:

the third one

Step-by-step explanation:

determine the slope of the line given this two points (-2,4) and (1,6) with solution

Answers

Answer:

Slope = y2 - y1/x2 - x1

Slope = 6-4 / 1--2

Slope = 2/3

Step-by-step explanation:

hope that will help you

The slope of the line will be 2/3.

The formula for the slope will be:

= (y2 - y1) / (x2 - x1)

where,

y2 = 6

y1 = 4

x2 = 1

x1 = -2

We will slot the values into the equation which will be:

= (y2 - y1) / (x2 - x1)

= (6-4) / (1- -2)

= 2/(1+2)

= 2/3

Therefore, the slope is 2/3.

Read related link on:

https://brainly.com/question/24645618

There is a sidewalk of width x around a rectangular garden. If the garden measures twenty-feet by thirty-feet, then the combined area of the garden and sidewalk is

Answers

Answer:

Area = 200 + 50 + x

Step-by-step explanation:

Given

Length = 20

Width = 30

Side Walk = x

Required

Determine the area.

To do this we need to get the new worth and length by adding the length of the sidewalk.

This gives:

Length = 20 + x.

Width = 30 + x

So, area becomes.

Area = (20 + x)(30 + x)

Area = 600 + 20x + 30x + x²

Area = 200 + 50 + x²

Mr. Martin bought a microwave that was originally priced at $225. Using a coupon, he received a 30% discount on the microwave. What is the total price Mr. Martin will pay at the register if there is a 6% sales tax. Round your answer to the nearest cent if necessary.

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Answer: 125 I think

Step-by-step explanation:

write an equation for the line below​

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Answer:

y = -X + 4 is the equation for the line below

hello please help will give brainliest!

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Answer:

420

Step-by-step explanation:

Answer:

A. 420

Step-by-step explanation:

nice

Which is equal to –214°?

Answers

Answer:

B

Step-by-step explanation:

Convert from degrees to radians using ratio pi/180. -107pi/90 radians would be the answer. Also edg. 2020

-107pi/90 radians is equal to -214degree.

We have to determine which is equal to –214°

Convert from degrees to radians using the ratio.

How to convert a degree into a radian?

To convert the value of the angle in degree, to its equivalent radians, we need to multiply the given value by π/180.

pi/180.

-107pi/90 radians is equal to -214degree

To learn more about the angle visit:

https://brainly.com/question/25716982

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Find the reciprocal of 10 1/2!​

Answers

Answer:

2/21

Step-by-step explanation:

10 1/2=21/2 and then flip it

the answer is you put it in a improper fraction 21/2 and then flip it to 2/21 and 2/21 is your answer

Tim had $150 to spend on 3 pairs of pants. After buying them, he had $30 left over. What equation expresses how much each pair of pants cost?

Answers

Answer:

Step-by-step explanation:

3x+30=150

its 120 then divide by 3 which is 40

The length of a new rectangular playing field is 2 yards longer then double the width. If the perimeter of the rectangular playing field is 322 yards, what are its dimensions?

Answers

Answer:

Step-by-step explanation:

First, we want to take the information we have and turn it into an equation, where x is our unknown dimension. For this problem, it would be better if x was equal to the width.

Let's  write out the equation:

X is the width, 2x + 2 is the length, and we are multiplying both by two since there are two sides of the field. It will all equal to 322, because that is the perimeter.

2*x + 2(2x +2) = 322

Now, let's solve:

2*x + 2(2x + 2) = 322

2x + 4x + 4 = 322

6x + 4 = 322

6x = 318

x = 318 ÷ 6

x = 53

The width is 53 yards. To find the length, we multiply 53 by two and add two.

53 * 2 + 2 = 106 + 2 = 108 yards, as the length

What are the possible degrees for the polynomial function?
degrees of 6 or greater
even degrees of 6 or greater
degrees of 5 or greater
odd degrees of 5 or greater

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Answer:b

Step-by-step explanation:on edge2020

Rewrite the following equation in slope-intercept form.
17x + 18y = -6

Answers

Answer:

y= -17/18x-1/3

Step-by-step explanation:

The slope-intercept form of the equation is y = (-17/18)x -1/3.

What is linear equation?

Equations whose variables have a power of one are called linear equations. One example with one variable is where ax+b = 0, where a and b are real values and x is the variable.

Given:

A linear equation 17x + 18y = -6.

To find the slope-intercept form:

Simplifying,

17x + 18y = -6

18y = -6 -17x

y = -17/18x -1/3

Therefore, y = (-17/18)x -1/3 is the slope-intercept form.

To learn more about the linear equation;

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Which phrase matches the algebraic expression below? (1 point)
3(x + 7) + 10

Answers

Answer:

Add 10 to three times  the value of x minus 7.

Step-by-step explanation:

Answer:

Three times the difference of X and seven plus ten

Step-by-step explanation:

Keith bought 8 new baseball trading cards to add to his collection. The next day his dog ate half of his collection. There are now only 30 cards left. How many cards did Keith start with?
please help!!!

Answers

Answer:

52 cards

Step-by-step explanation:

call the amount he started with " x "

then he bought 8 cards

so the new equation is

x+8

then he lost half of his cards

so now the equation is

(x + 8 )/2

that amount to 30 cards as per what is given in the problem

so now the equation is

( x + 8 )/2 = 30

solve using inverse operations and simplifying

( x + 8 )/2 = 30  

         *2    *2

x + 8 = 60

   -8     -8

x = 52

At this point I’m just going to start singing songs ! For the caption

Answers

Answer:

[tex]the \: value \: is \:0.5 \: i.e\: option\:b[/tex]

Answer:

.50

Step-by-step explanation:

I am pretty sure

Find the difference: 4.203 - 0.01

Answers

Answer:

4.193

Step-by-step explanation:

you line up the decimals then subtract to get 4.193

Why can't a whole number be irrational? Please dumb it down for me

Answers

Answer and Step-by-step explanation:

A whole number isn't irrational because it is a whole number. Confused? Most likely.

A whole number is any of the numbers {0, 1, 2, 3, ...} etc. There is no fractional or decimal part. And no negatives. Example: 5, 49 and 980 are all whole numbers.

An Irrational Number is a real number that cannot be written as a simple fraction. Irrational means not Rational. The irrational numbers are all the real numbers which are not rational numbers. That is, irrational numbers cannot be expressed as the ratio of two integers.

These are both real numbers because they don't go through the 4th wall (of science/math)

Imaginary numbers would use i.

Can you help me find abcd please

Answers

Answer:

A.2 B.4 C.3 D.4 E.6

Step-by-step explanation:

1/2 ÷ 3/4 = 1/2 x 4/3 (flip 3/4 and keep 1/2)

If you multiply 1/2 x 4/3 you will get 4/6.

can i have 300mn + 500mn =_________________________________________________________________________________________________i need help

Answers

Answer:

yes it would be 800mn

Step-by-step explanation:

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