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3 years ago

Write an expression for the situation

Mathematics

1 answer:

MAXImum [283]3 years ago

8 0

Answer:

Step-by-step explanation:

if each brick is 3 inches tall, and there are b bricks, each b is 3, therefore 3b

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A bag has 5 red marbles, 6 blue marbles, 3 green marbles, 4 black marbles, and 2 yellow marbles, marbles. What is a reasonable p

vladimir2022 [97]

PROBABILITY (Green or black marble) = 7/20.

5 0

3 years ago

1. Add or Subtract. Show your work

Sav [38]

QUESTION 1a.

We want to add

$( - 2 {x}^{2} - 4x + 13) + (12 {x}^{2} + 2x - 25)$

We group similar terms to get

$- 2 {x}^{2} + 12 {x}^{2}- 4x + 2x - 25 + 13$

Simplify:

$- 10{x}^{2} - 2x -12$

QUESTION 1b.

The given function is:

$(7x^2+4x-26)-(-7x^2-3x+15)$

Expand the parenthesis to obtain,

$7x^2+4x-26 + 7x^2 + 3x - 15$

Group similar terms,

$7x^2+7 {x}^{2} + 4x + 3x-26 - 15$

Simplify:

$14{x}^{2} + 7x-41$

QUESTION 2

The given function is

$f(n)=n^2-6n-16$

The zeros of this function is given by;

$n^2-6n-16 = 0$

Split the middle term.

$n^2-8n + 2n-16 = 0$

Factor;

$n(n - 8) + 2(n - 8) = 0$

$(n - 8)(n + 2) = 0$

$n - 8 = 0 \: or \: n + 2 = 0$

$n = 8 \: or \: n = - 2$

4 0

3 years ago

Marla bought 12 books for $27.60. What is the price per book?

Ilia_Sergeevich [38]

Answer: $2.30

Step-by-step explanation:

Because if we do $27.60 divided by 12 we get 2.3 which then means 1 book cost $2.30

HOPE THIS HELPS ^^

7 0

2 years ago

Read 2 more answers

Pls answer both questions for branliest and 20 points

denis-greek [22]

Answer:

1, 216

2. 576

Step-by-step explanation:

meth

7 0

2 years ago

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Am i correct?? <br><br>-- > if i am wrong. show details on why.

Anna35 [415]

Answer:

Sorry to say that you are wrong,it should be the last choice

NP of the first triangle is 36,and it touches MP,and 36 is bigger than 33.Although it looks like same,it is not really the same.

Hope that helps.:)

8 0

3 years ago

Read 2 more answers