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Elodia [21]
3 years ago
5

What is the value of the power a if 5^a = 1/25?

Mathematics
1 answer:
attashe74 [19]3 years ago
8 0

When a number is raised to a power it is multiplied by itself so the number gets larger. Because the answer is a fraction, this means the power is a negative value.

Find the number 5 has to be raised to be 125 and then make is negative:

5 x 5 x 5 =125

The answer would be a = -3

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Solve the equation using the Zero-Product Property (X-9)(x+7)=0
aleksandr82 [10.1K]
(x-9)(x+7)=0
x-9=0 or x+7=0
x=9 or x=-7

:)
4 0
3 years ago
Put together, Dulcina and Tremaine have 129 total matchbooks. Tremaine's collection has 39 fewer matchbooks in it than Dulcina's
Anit [1.1K]

Answer:

Let the Dulcina's collection be 'x'

Let the Tremaine collection be 'x-39'

x + x - 39 =129

2x = 129 +39

2x = 168

x = 168/2

x = 84

Dulcina's collection = x = 84

Tremaine's collection = x - 39 = 84 - 39 = 45

7 0
3 years ago
I NEED HELP ASAP BEFORE IT TIMES OUT!
padilas [110]
Ahh ok so split it up into two rectangles:

Rectangle one:
A=lw
A=4(12)
A=48

Rectangle two:
A=lw
A=10(2)
A=20

Add both areas up to get 68 ft squared!! :)
7 0
2 years ago
Read 2 more answers
Find the measure of VU<br> Can someone help me??<br><br> I need to show the work
borishaifa [10]

Answer:

<h2>VU=16</h2><h2>x=2</h2>

Step-by-step explanation:

lets solve the problem 7x+2=3x+10

subtract 3x from 7x

4x+2=10

subtract 2 from 10

4x=8

divide both sides by 4

x=2

to find VU plug in 2 for x so...

3(2)+10

6+10

16

I hope this helped you :)

7 0
2 years ago
Read 2 more answers
Please Help!!!!!!!<br> Simplify (√5)(3√5).
kirill [66]

The answer is 15

multiply 3sqrt(25)

3*5=15

7 0
3 years ago
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