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SpyIntel [72]
3 years ago
7

Simplify 5 to the power of negative 2 over 4 to the power of 6?

Mathematics
1 answer:
Naya [18.7K]3 years ago
4 0

Answer:

Step-by-step explanation:

\frac{5^{-2} }{4^{6} }  =\frac{1}{5^{2} 4^{6} }

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For what value of x is r(x)= -21??
Naily [24]

Answer:

Rx= - 21

Rx/r= - 21/r

X=-21/r

4 0
1 year ago
Solve y=.80x+100 based on bread machine costs 100. Ingredients for one loaf is .80 and what is the cost to make 50 loaves of bre
Ugo [173]
Substitute 50 loaves into the given equation

y= cost to make 50 loaves

y= 0.80x + 100
y= 0.80(50) + 100
multiply first, then add
y= 40 + 100
y= $140 cost to make 50 loaves

Hope this helps!
6 0
3 years ago
Evaluate f(x)=7x+7 when x=-9
stealth61 [152]

Answer:

-56

Step-by-step explanation:

f(x) = 7x + 7

x = -9

We meed to plug in x = -9 into the first equation:

f(-9) = 7(-9) + 7

We can open up the parentheses:

f(-9) = -63 + 7

And then simplify:

f(-9) = -56

7 0
3 years ago
A comparison number sentence
andreev551 [17]
I need a little more to work with
3 0
3 years ago
Please help no links
Nina [5.8K]

Answer:

x=5 y=-6

Step-by-step explanation:

3x+y=9 ------eqn1

y=4-2x -------eqn2

using substitution

put y=4-2x into eqn1

3x+4-2x=9

x=5

put x=5 into eqn2

y=4-2(5)

y=4-10

y=-6

8 0
3 years ago
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