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Dafna11 [192]
3 years ago
5

Help pleassssse (SHOW YOUR WORK TOO...) do all of them...

Mathematics
1 answer:
Kobotan [32]3 years ago
8 0
11. 2a*4b+2a+5
=8ab+10b
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Help pls will give brainliest
olchik [2.2K]

Answer:

b

Step-by-step explanation:

area of triangle = 1/2 x c x d =cd/2

area of semicircle = 1/2 x π x r^2 = 1/2 x π x (a/2)^2 = 1/2 x π x a^2/4 =πa^2/8

area of shape = area of triangle + area of semicircle

7 0
3 years ago
Stephanie took a science exam that had two parts.
patriot [66]

Answer:

44 questions

Step-by-step explanation:

Part 1: She got 16 questions correct, which was 4/5 of the number of part 1 questions.

Let x = total number of questions in part 1

4/5x = 16

Divide both sides by 4/5

x = 16 ÷ 4/5

= 16 × 5/4

= 20

x = 20

There are 20 questions in part 1

She got 16 questions correct, which was 2/3 of the number of part 2 questions.

Let y = number of questions in part 2

2/3y = 16

Divide both sides by 2/3

y = 16 ÷ 2/3

= 16 × 3/2

= 24

y = 24

There are 24 questions in part 2

The total number of questions on Stephanie’s exam = part 1 + part 2

= 20 + 24

= 44 questions

8 0
3 years ago
Simplify this expression.
Bond [772]

The correct expression to simplify is:

1+4.25n + 3/2p -3+(-2p)+5/4n

Answer:

5.5n-1/2p-2

Explanation:

<u>1. Given expression</u>:

1+4.25n + 3/2p -3+(-2p)+5/4n

<u>2. Group like terms</u>:

(1-3)+(4.25n+5/4n)+(3/2p-2p)

<u>3. Simplify</u>:

  • 1 - 3 = - 2
  • 4.25n + 5/4n = 4.25n + 1.25n = 5.5n
  • 3/2p - 2p = 1.5p - 2p = - 0.5p = - 1/2p

-2+5.5n-1/2p=5.5n-1/2p-2

8 0
4 years ago
You randomly draw a card from a standard deck of of playing cards. Let A be the event that the card is an ace, let B be the even
lianna [129]
A 4/52 B 26/52 C 13/52 of course in simpilest form though.
3 0
3 years ago
Jamie has 9 gallons of paint that she needs to pour into containers that
Andrew [12]

Answer:

12:)

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
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