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Rina8888 [55]
3 years ago
15

Simplify this expression (5)^ -5 (5)^ 7 please explain how you got the answer

Mathematics
1 answer:
Rina8888 [55]3 years ago
3 0

Answer:

( {5}^{ - 5} ) \times ( {5}^{7} ) \\  \\  \frac{ {5}^{7} }{ {5}^{5} }  =  {5}^{7 - 5}  =  {5}^{2}

the answer is b. 25

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D.) is 13/5 it got cut off<br> HELP NEEDED<br> [10 points up!]
vodomira [7]

It would be A. You can find this out by using SOH CAH TOA,

SOH means sin= opposite/hypotenuse

CAH mean cos= adjacent/hypotenuse

TOA means tangent= opposite/adjacent

You would use CAH since you are trying to find cos∠C

You would have cos∠C=10/26.

26 is the hypotenuse since it is opposite the right angle and is the biggest side.

10 is the adjacent since it is right next to C

You would simplify this down to 5/13 by dividing by 2.

This gives you A.

5 0
3 years ago
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The perimeter of a rectangular painting is 310 centimeters. If the width of the painting is 56 centim
gtnhenbr [62]

Answer:

The length is 99 cm

Step-by-step explanation:

The perimeter of a rectangle is

P = 2 (l+w)

310 = 2( l+56)

Divide each side by 2

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155 = l+56

Subtract 56

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3 years ago
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Hi I need help with this packet because my teacher explains it very hardly for me ​
algol13

Answer:

(-1,4) (-8,2) (-6,10)

Step-by-step explanation:

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3 0
3 years ago
-x=2-3x+3<br> Help me solve this
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I got the answer x=5/2
6 0
3 years ago
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Can someone please help me:)
Naddika [18.5K]
For a translation 4 units down you would subtract 4 from each y value and 5 units right you would add 5 to each x value.
Your resulting points would be.
A'(-1,1), B'(-1,-2), C'(3,-2), D'(3,2)
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