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Dahasolnce [82]
2 years ago
8

Pepepepeepepepepe helepeeepepe

Mathematics
2 answers:
bezimeni [28]2 years ago
5 0
4+ (m -n)^4 m=7 and n = 5
4+ (7-5)^4 (always solve PARENTHESES FIRST)
4+ (2)^4
4+16
20
ivolga24 [154]2 years ago
4 0

Answer:

20 is the value of the expression.

Step-by-step explanation:

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Which expression is equivalent to (x^2 -8) - (-2x^2+4)?​
Phoenix [80]

Answer:

D) 3x^2 - 12

Step-by-step explanation:

Using PEMDAS;

There is no need to evaluate the part of the equation (x^2 - 8) because is no need to, as it is already in its simplest form.

We must evaluate the part of the equation continuing with, "- (-2x^2+4)," as it is not in its simplest form.

Evaluating "- (-2x^2+4)":

Step 1: Distributing the negative

Once distributing the negative symbol amongst the values within the parenthesis according to PEMDAS, we get "2x^2 - 4" as the product.

Step 2: Consider the rest of the equation to evaluate

Since the part of the equation is still in play here as it is a part of the original equation to be solved, we must evaluate it as a whole to get the final answer.

Thus,

x^2 -8 + 2x^2 - 4 = ___

*we can remove the parenthesis as it has no purpose, since it makes no difference.

Evaluating for the answer, we get,

x^2+2x^2 + (-8 - 4) = 3x^2 - 12

Hence, the answer is D) 3x^2 - 12.

3 0
3 years ago
A car travels 15 1/10 miles in 1/3 of an hour. What is the average speed, in
jasenka [17]

Step-by-step explanation:

Miles = 15 1/10

Miles = 151/10 miles

Hour = 1/3 hour

Av = 151/10 miles / 1/3 hour

Av = 151/10 × 3 / 1/3 × 3

Av = 453/10 miles / hour

Av = 45,3 mil / h

4 0
3 years ago
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What is the most difficult in equations??
marusya05 [52]

I'll go with graphing cause when you try graphing a picewise function for example it's much harder to graph because it's to many numbers and you can't figure out what to graph especially for me.) mark me brainliest please

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3 years ago
If 10 cups of ice cream are separated into 1/5 cup sample serving how many samples can be served​
cestrela7 [59]

Answer:

50 Samples

Step-by-step explanation:

Divide the total cups of ice cream (10) by the sample amount (1/5)

\frac{10}{\frac{1}{5} }

10 ÷ 1/5

Use the keep change flip rule.

\frac{10}{1}*\frac{5}{1}  = 50

8 0
3 years ago
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Jobie starts with $325 in her piggy bank. Each month she adds $10.
musickatia [10]

Answer:

Hello, The answer is C.

Step-by-step explanation:

HOPE THIS HELPS :)

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3 years ago
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