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3 years ago

Evaluat the expression 202-[2(3+7)+6]=

Mathematics

1 answer:

valina [46]3 years ago

6 0

You need to start calculating from the innermost bracket and if there are no signs to do any operation then you need to multiply

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12 pleaseeee and thanksss

Svetlanka [38]

Answer:

Step-by-step explanation:

0.5-8y= 72

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3 years ago

I need help solving this equation<br> 4n-9=2(5+2n)

Nastasia [14]

First, use distributive property on the right half.

2 * 5 = 10

2 * 2n = 4n

4n - 9 = 10 + 4n

Add 9 to both sides

4n = 19 + 4n

Subtract 4n from both sides

0 = 19

But thats not true. Therefore, there is no solution.

4 0

3 years ago

Describe the process of subtracting a negative integer from a positive integer

emmasim [6.3K]

Its basically just subtracting from one another

for example, 6-6 is 6

or -4-3= 7

5 0

3 years ago

In one full day, 108 gallons of water seep into a pond. At this same rate, how many gallons will seep into the pond in 60 hours?

Alika [10]

Answer:

270

Step-by-step explanation:

108 divided by 24 is 4.5. 4.5 is how many gallons per hour. then, 4.5 times 60 equals 270.

6 0

3 years ago

The class scores of a history test have a normal distribution with a mean Mu = 79 and a standard deviation Sigma = 7. If Opal’s

e-lub [12.9K]

Using the normal distribution, we got that expression for the z-score of her test score is

$z= \frac{72-29}{7} \\\\z=-7/7\\\\z=-1$

<h3>What is Normal Probability Distribution?</h3>

it's a type of probability distribution which is symmetric about the mean, it gives data near the mean are more frequent than data far from the mean.

Given that mean = $\mu=79$

and standard deviation = $\sigma = 7$

X=73

we know that formula of z-score is

$z=\frac{X-\mu}{\sigma}$

Hence Z-score can be calculated as

$z= \frac{72-29}{7} \\\\z=-7/7\\\\z=-1$

Using the normal distribution, we got that expression for the z-score of her test score is

$z= \frac{72-29}{7} \\\\z=-7/7\\\\z=-1$

To learn more about the normal distribution visit : brainly.com/question/24663213

3 0

3 years ago

Evaluat the expression 202-[2(3+7)+6]=​

Evaluat the expression 202-[2(3+7)+6]=