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2 years ago

A diver descends to a depth of –25.6 feet relative to sea level. How many feet must the diver ascend to reach sea level?

Mathematics

2 answers:

Bingel [31]2 years ago

7 0

The answer is 25.6 feet.

Hope this helps

MArishka [77]2 years ago

5 0

Answer:

the Answer would be c

Step-by-step explanation:

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peter buys 8.5 square feet of carpet. the carpet cost $10.20 cents per square foot. how much does peter pay for the carpet?

Fiesta28 [93]

10.20*8= 81.60
10.20*.5= 5.10
add
81.60+5.10= 86.70
ANSWER: Peter pays $86.70 for the carpet

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3 years ago

Select all expressions shown that are equivalent to

Murrr4er [49]

Answer:

A. and C.

if you simplify the expressions, you will see which ones are equal to the expression given

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2 years ago

Write the numeral for fifty million and sixty thousand

marishachu [46]

500060 is the answer

8 0

3 years ago

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pls help will give brainliest Rena used the steps below to evaluate the expression (StartFraction (x Superscript negative 3 Base

kaheart [24]

Answer:

First "order of operations" mistake: step 2

First arithmetic mistake: step 4

Step-by-step explanation:

As we understand Rena's work, she wants to simplify ...

$\left(\dfrac{x^{-3}y^{-2}}{2x^4y^{-4}}\right)^{-3}$

for x = -1 and y = 2.

Her work seems to be ...

Step 1

$\text{Substitute $x=-1$ and $y=2$ into the expression}\\\\\left(\dfrac{(-1)^{-3}2^{-2}}{2(-1)^42^{-4}}\right)^{-3}\qquad\text{no error}$

Step 2

$\text{Simplify the parentheses}\\\\\left(\dfrac{2^4}{2(-1)^4(-1)^32^2}\right)^{-3}=\left(\dfrac{2^2}{2(-1)^7}\right)^{-3}\qquad\text{order of operations error}$

Step 3

$\text{Evaluate the power to a power}\\\\\dfrac{2^{-6}}{2^{-3}(-1)^{21}}\qquad\text{no error}$

Step 4

$\text{Use reciprocals and find the value}\\\\\dfrac{1}{2^32^6(-1)^{21}}=\dfrac{1}{8\cdot 64\cdot (-1)}=\dfrac{-1}{512}\qquad\text{error: $2^3$ is used instead of $2^{-3}$}$

_____

So, the first arithmetic error is in Step 4. However, the order of operations requires exponents be evaluated first. Doing that makes step 2 look like ...

$\left(\dfrac{-\dfrac{1}{4}}{2(1)\dfrac{1}{16}}\right)^{-3}=(-2)^{-3}\qquad\text{proper Step 2}$

We expect your answer is supposed to be Step 4.

7 0

3 years ago

John has $220 in his account and adds $25 to it each month. Cheryl has $100 in her account and adds $35 each month to her accoun

Morgarella [4.7K]

Answer:

$695

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers