Mathematics High School

Given:
b (x) = x2+7x
Find
B(7)

Answers

Answer 1

Answer:

Step-by-step explanation:

b(7) = 7^2 + 7(7)

B(7) = 49 + 49

B(7) = 98

Related Questions

Rewrite the expression by factoring out (w+3).
7w2(w+3)-3(w+3)

Answers

Answer:

(w + 3) [7w²  - 3]

Step-by-step explanation:

Given expression:

    7w²(w + 3) - 3(w + 3);

 Now rewriting the equation by factoring out (w+ 3);

 Solution:

   7w²(w + 3) - 3(w + 3);

   = (w + 3) [7w²  - 3]

 

The solution is (w + 3) [7w²  - 3]

What should i do if i like my best friend ? How do u know if they like u back

Answers

Answer: If you like your best friend, you should explain to him/her that you like him/her. If you don’t want to do this, then keep a close eye on them and detect whether they like you back like if they treat you with more kindness than you usually receive.

Step-by-step explanation: Activity: Give them different topics and see if they answer in a way that is different from how they would answer someone else.

Find the value of x
(9x-38)+(4x+23)=180

Answers

Answer:

x=15

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

9x−38+4x+23=180

9x+−38+4x+23=180

(9x+4x)+(−38+23)=180(Combine Like Terms)

13x+−15=180

13x−15=180

Step 2: Add 15 to both sides.

13x−15+15=180+15

13x=195

Step 3: Divide both sides by 13.

13x/13=195/13

Answer:

15

Step-by-step explanation:

9x-38+4+23=180

13x-15=180

13x=195

x=15

Mona, Tabitha, and Reid are at a frozen yogurt shop. At the shop, frozen yogurt and toppings are charged by the ounce. The following table shows the weight and cost of each person's bowl.

Person Mona Tabitha Reid
Weight of bowl 9.2 ounces 8.1 ounces 7.8 ounces
Cost of bowl $4.14 $3.65
A. What does the yogurt shop charge per ounce?
B. What should Reid's bowl cost?

Answers

Answer:

A) $0.45 per oz

B) $3.51

Step-by-step explanation:

4.14/9.2 = 0.45

0.45 x 7.8 = 3.51

Solve each equation. Check your solution.
9= 4a + 13
Oa. -16
Ob. -1
c. 1
Od 5

Answers

Answer:

b. -1

Step-by-step explanation:

9=4a+13

-13    -13

--------------

-4=4a

4a/-4

a=-1

It takes 20 cups of chicken broth to make a chicken soup recipe. How much is this in quarts?
Use the table below. Include the correct unit in your answer.

Answers

Answer:

5

Step-by-step explanation:

cause 4 cups are in 1 quart

Answer:

20 cups would equal 5 quarts

Step-by-step explanation:

HELP!!! PLEAS AND THANK YOU

Answers

it is moving away from earth.

explanation: when an object moves away from us the light shifted to the red end of the spectrum as its wavelengths get longer

1 1/6 divided by 2 and 2/3

Answers

Answer:

0.4375

Or Fraction

7/16

Divide. Round to the nearest tenth if necessary. 118.5 divided by 5​

Answers

Answer:

23.7

Step-by-step explanation:

24 boys out of 64 classmates is what percent

Answers

That would be 37.5 percent

Answer:

37.5%

Step-by-step explanation:

24÷64=0.375

with percents, you have to move the decimal 2 spaces back

so that equals 37.5%

What is the simplified form of 37 - 57

Answers

Answer:

A

Step-by-step explanation:

math help please! - ( 2/5 )

Answers

Answer:

D

Step-by-step explanation:

it is D because you always want x to be a lone fraction and that would be the first step im 99% sure unless someone can correct me :)

Answer:

d) subtract 15 from both sides

Step-by-step explanation:

Process of elimination:

a) 2.5 and x are being multiplied, not subtracted, so (a) is wrong right off the bat.

b) you may divide 2.5 by both sides, but you want to get "x" on one side first. So you would do (b) first either.

c) to get rid of 15, which we need to somehow, we need to do the opposite operation than the one in the equation. 15 is +15, not negative, and so you would need to subtract to get rid of 15. This is why (c) is also wrong.

That leaves us, with (d), because you need to subtract 15 to isolate "x".

Two angles are supplementary. One measures 3x-2 and the other measures 2x+7 Find the value of x and the measure of the smaller angle.

Answers

Sum of two angles that are supplementary = 180°

Then :-

[tex]3x - 2 + 2x+ 7 = 180[/tex]

[tex]5x + 5 = 180[/tex]

[tex]5x = 180 - 5[/tex]

[tex]5x = 180 - 5[/tex]

[tex]5x = 175[/tex]

[tex]x = \frac{175}{5} [/tex]

[tex]x = 35[/tex]

Which means :-

The measure of the larger angle :-

= 35 × 3 - 2

= 105 - 2

= 103°

The measure of the smaller angle :-

= 2 × 35 + 7

= 70 + 7

= 77°

Therefore , the value of x = 35 and the measure of the smaller angle = 77° .

Write the hypothesis and the conclusion of each conditional.
1. If 3x-7 = 32, then x = 13.

Answers

Answer:

XDdddDddDDDDDDDDDDDDDDDDDDD

I need help please , it would be nice

Answers

Answer:

cant see the picture

Step-by-step explanation:

FIND VALUEE OF Y !!!

Answers

Answer:

7.

Step-by-step explanation:

9y+12=75

subtract 12 from 75

divide by 9y

What is the cube root of cube root of 27/125

Answers

Answer:

Cube root of 27/125 is:

[tex]\frac{3^{3}}{5^{3} }[/tex]

Answer:

3/5

Step-by-step explanation:

giving brainlist so plzzz help

Fill in the missing numbers in these equations.

(-7) x ? = 14

Answers

(-7) is the answer -7 x -7 = 14

Answer:

x=-2

Step-by-step explanation:

Divide 14 by -7, then plug in the result(-2) in place of x.  Run this new equation(-7*-2=14) through your calculator to be sure it's correct.

Mr brown purchased one yardstick for $5 and r rulers for $1.50 each. which of the following expressions represents Mr Browns total purchase?

a. 5(1.5r)
b. 1.5r + 5
c. 1.5r + 15
d. 5r + 1.5

Answers

Answer:

B. 1.5r + 5

Step-by-step explanation:

Because he bought 1 yardstick and r rulers so to find the total number you need to add both numbers together.

Which equation has no solution?

Answers

Answer:

c

Step-by-step explanation:

What’s greater - 2/6 or - 3/8 or is it equal

Answers

Answer:

3/8 is greater

Step-by-step explanation:

A student is painting a room at a constant rate. She is able to paint 2/5 of a room in 1/2 of an hour. How long does it take to paint the whole room plssssssssss help

Answers

Answer:

75 minutes

Step-by-step explanation:

if it takes 30 minutes to paint 2/5 of the room, then it must take 15 minutes to paint 1/5 of the room.

15 * 5 = 75 minutes or 5/4 hours

which of the following equations represents the sequence 17,14,11,9... ?​

Answers

Answer:

Subtract 3

Step-by-step explanation:

Each time the following number decreases by 3

g(x) = 182 What is the domain of g?​

Answers

Answer:

i tryed ;-;..

Step-by-step explanation:

HELP I NEED THE ANSWER FAST its says true or false false ( the absolute of a number can be negative

Answers

Answer:

False

Step-by-step explanation:

Answer: False

Step-by-step explanation: Absolute value is the number of whole numbers the number is away from zero. So it can only be positive because you cannot have a number negative spaces away from zero

rewrite the expression using rational exponents

Answers

I think it would be X^3/8

Find the LENGTH OF THE MISSING SIDE in the following right triangle in inches.
Round to the nearest tenth, if necessary.
20 inches
21 inches

Answers

Answer:

If the missing side is long then it's 29 or if its short, then it's 6.4

Step-by-step explanation:

just do a^2 + b^2 = c^2 method

Help please!! Thank you!

Answers

Answer:

S

Step-by-step explanation:

The vertex is S. The angle can only be measured from point S.

Answer: S

Explanation:
I hope I’m not late

Maria walked 3 km west and 4 km south. Calculate how far she is from her starting point

Answers

Distance will be the hypotenuse of a right triangle.

Distance^2 = 3^2 + 4^2 = 9 + 16 = 25

Distance = 5 km

PLZ I WILL GIVE BRAILIEST TO THE FIRST ANSWER
I'm too tired to do this
Which has the greatest value?
A. -3 +-4 – (-2)
B. -3 – (-4) - (-2)
C. -3 + (-4) – 2
D. -3 – (-4)-2

Answers

Option B is the correct answer.

3 is greater than -5, -9, and -1.

Hint: Remember to distribute the negative when solving. A negative directly outside outside of and to the left the parenthesis times a negative number inside the parenthesis makes that number positive.

So for option B, you can simplify it to -3 +4 +2. And that equals 3.

A) -3+-4-(-2) = -5

B) -3-(-4)-(-2) = 3

C) -3+(-4)-2 = -9

D) -3-(-4)-2 = -1
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