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12345 [234]
3 years ago
14

Which expression is equivalent to 2(a+2b)-a-2b o 3a+2b o 3a-2b o a-2b

Mathematics
1 answer:
lys-0071 [83]3 years ago
8 0

Answer:

a -2b

Step-by-step explanation:

2(a+2b)-a-2b

Distribute

2a+4b -a-2b

Combine like terms

a -2b

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20 points and brainliest answer for correct answer. Photo above. Due by 9:45 today! Hi
SSSSS [86.1K]

Answer:

146 square meters

Step-by-step explanation:

We can split the figure into a 6 by 15 rectangle and a parallelogram (8 base, 7 height).

  1. The area of the rectangle is 6•15=90
  2. The area of the parallelogram is 8•7=56
  3. 90+56=146
7 0
2 years ago
The sum of 7/8 and 4/9 is closer to 0,1,2,or 3?
tresset_1 [31]
2 because you make them with the same denominators that both go into each other EX: 8x9=72 7/8 now equals 63/72 and 4/9 now equals 28/72 now add them together 63/72 + 28/72= 91/72= 1 19/72
6 0
3 years ago
Consider a population consisting of the number of teachers per college at small 2-year colleges. Suppose that the number of teac
agasfer [191]

Answer:

a) \frac{8}{9} =0.89

b) 0.8413

Step-by-step explanation:

we know that

P(║ x -\mu║ \leq  k\sigma) \geq 1 -\frac{1}{k^2}

so, \mu = 150, \sigma = 20

k =  \frac{210 - 150}{20} =\frac{150 - 90}{20} = 3

P(║ x -150 ║ \leq  3\times 20) \geq 1 -\frac{1}{3^2} = \frac{8}{9}

x - N(150, 20^2)

P(X \leq 170) = 0.8413447

check

P norm = \frac{170 - 150}{20}= 0.8413447

8 0
3 years ago
What is the answer to this problem?<br> (15)18+89*56/7= ?
Fiesta28 [93]

Hello there, the answer to your question is:

982



8 0
2 years ago
Read 2 more answers
Andy received a 25% discount on the book he bought at the book sale if he paid 17.40 what was the original price for the book
zalisa [80]

Answer:

$21.75

Step-by-step explanation:

Add 25% then subtract to get back to $17.40

6 0
3 years ago
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