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3 years ago

2(7-3)+4(10÷2) use the oder of operations to simplify

Mathematics

1 answer:

MAVERICK [17]3 years ago

4 0

Answer:

the answer is 28

Step-by-step explanation:

2×4+4+5

8+20

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Use the table below.

gizmo_the_mogwai [7]

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3 years ago

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I’m literally begging someone please help (just number 10. show work)

Sladkaya [172]

Answer:

$h = \frac{2A}{b +B }$

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Step-by-step explanation:

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3 years ago

Explanation please I need to know how you got the answer thank you!

Blababa [14]

Answer:

19.6, B

Step-by-step explanation:

To solve, we need to figure out how many gallons of white paint she needs for every gallon of brown paint.

We are given this equation.

5 gallons of brown paint = 7 gallons of white paint

Divide both sides by 5.

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2 years ago

9 – 2x = 19<br> What is x

iren2701 [21]

9-2x=19

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3 years ago

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ACT scores have a mean of 20.8 and 9 percent of the scores are above 28. The scores have a distribution that is approximately no

dimaraw [331]

Answer: 5.37

Step-by-step explanation:

Let x = ACT scores.

Given: ACT scores have a mean of 20.8 and 9 percent of the scores are above 28. The scores have a distribution that is approximately normal.

i.e. P(X>28)=0.09 (i)

Now,

$P(X>28)=P(\dfrac{X-\mu}{\sigma}>\dfrac{28-20.8}{\sigma})\\\\= P(z>\dfrac{7.2}{\sigma})\ \ \ \ [z=\dfrac{X-\mu}{\sigma}]$ (ii)

One -tailed z value for p-value of 0.09 =1.3408 [By z-table]

From (i) and (ii)

$\dfrac{7.2}{\sigma}=1.3408\\\\\Rightarrow\ \sigma=\dfrac{7.2}{1.3408}\\\\\Rightarrow\ \sigma=5.37$

Hence, the standard deviation = 5.37

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3 years ago

2(7-3)+4(10÷2) use the oder of operations to simplify ​

2(7-3)+4(10÷2) use the oder of operations to simplify