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Sindrei [870]
3 years ago
9

HELP ME PLS I WILL GIVE YOU THE BRAINEST

Mathematics
2 answers:
Fiesta28 [93]3 years ago
7 0

Answer:

The first term should be positive

She did not distribute the -4 properly

She added \frac{2}{7} to negative -4 instead of multiplying

Step-by-step explanation:

In order to tell where she is wrong we should solve the question our selves. we are going to get the following......

-4(-3x + \frac{2}{7})= -4(-3x) +  (-4)(\frac{2}{7} )= 12x - \frac{8}{7}

So now we see that the three things she did wrong are.

The first term should be positive

She did not distribute the -4 properly

She added \frac{2}{7} to negative -4 instead of multiplying

Hope this helps :)

son4ous [18]3 years ago
3 0

Answer:

1, 4

Step-by-step explanation:

1. the product of two negatives are positive and they didn't do that, so yes.

2. the second term should NOT be positive, so they are correct on that.

3. they distributed the -4 correctly but added wrong, so they are correct on that.

4. -4+2/7=3 5/7    2/6(-4)=-4/3.  They added instead of multiplying, so they are wrong.

5.  they did simplify completely.  they just did it wrong.

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blagie [28]

Answer:

Total distance covered by the maintenance worker = 9189.16 feet

Step-by-step explanation:

An amusement park has a diameter = 975 feet

Radius of the park = \frac{\text{Diameter}}{2}

r = \frac{975}{2}

r = 487.5 feet

Since a maintenance worker walks around the park three times, that means he covers the circumference of the circle thrice.

Circumference = 2πr

C = 2π(487.5)

C = 975π feet

He covers this distance thrice,

So total distance covered by him = 3 × (975π)

= 2925π

= 9189.16 feet

Therefore, he walks 9189.16 feet per day.                              

6 0
2 years ago
Me Value of Money: Practice
Tatiana [17]

Answer:

$3952.13

Step-by-step explanation:

Annuity amount = future value / annuity factor

Annuity factor = {[(1+r)^n] - 1} / r

FV = Future value = $75,000  

R = interest rate = 8%

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Annuity factor = [(1/08)^12 - 1 ] / 0.08 = 1.8977126

Annuity amount = $75,000 / 1.8977126 = $3952.13

3 0
3 years ago
Inverse operation to squaring a number
Sliva [168]

Answer:

The inverse operation of squaring a number is finding the square root of a number. The square root cancels out the square. For example, 3² = 9. To cancel out the square, we have to take the square root. So, √9 = 3. Hope this helped.Step-by-step explanation:

4 0
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Just how much is a million?
Fudgin [204]
Hey You!

1 million = 1,000,000

In other words, 1 million is 1000 1000s.
7 0
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creativ13 [48]

I hope this helps you

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3 years ago
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