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denis-greek [22]
1 year ago
13

Select all correct answers

Mathematics
1 answer:
Luden [163]1 year ago
5 0
<h2>Answer = </h2><h2>=  \frac{1}{y {}^{5} x {}^{2} }</h2>

Step-by-step explanation:

Greetings !

simplify for variable y first

apply exponent rule

a {}^{b} .a {}^{c}  = a {}^{b +c \\   } \\  y {}^{ - 8}y {}^{5}  = y {}^{ - 8 + 3}

Add/subtract the numbers -8+3=5

= y {}^{5}

Apply exponent rule

a {}^{ - b}  =  \frac{1}{a {}^{b} }

Thus,

y {}^{ - 5}  =  \frac{1}{y {}^{5} }

secondly, simplify for the variable x

Apply exponent rule as we made on y

x {}^{ - 2}

x  {}^{ - 2}  =  \frac{1}{x {}^{2} }

multiply bot the values we get

Hope it helps!

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Select the correct answer.
sp2606 [1]

The perimeter of the pentagon with apothem of 5cm is 28.87cm

<h3>How to calculate the perimeter of a pentagon</h3>

The sum of all the external sides of the pentagon is its perimeter.

First we need to calculate the half of one of its sides using the SOH CAH TOA

tan 30 = x/5

x = 5 tan 30

x = 2.89

One of the sides = 2(2.89) = 5.77 cm

Perimeter of th pentagon  = 5(5.77) = 28.87

Hence the perimeter of the pentagon with apothem of 5cm is 28.87cm

Learn more on perimeter of pentagon here: brainly.com/question/11484726

6 0
1 year ago
SkinnieQueen2019 got a 23/25 on her math test. What percent did she get?
True [87]
92% 23 divided by 25 is 0.92
6 0
3 years ago
Read 2 more answers
Please help what is the answer
Vika [28.1K]
I give a good guess of 42
6 0
2 years ago
Determine a value for b such that a triangle with A = 42o and a = 7 has two solutions.
blondinia [14]
B=10 
<span>sides (a,b,c): 7, 10, 9.4873 </span>
<span>angles (A,B,C): 42°, 72.921°, 65.079° is an acute scalene triangle </span>
<span>(x,y) Vertices: A (4.2137,9.0689) , B (7,0) , C (0,0)
</span><span>Second solution: </span>
<span>sides (a,b,c): 7, 10, 5.3756 </span>
<span>angles (A,B,C): 42°, 107.079°, 30.921° is an obtuse scalene triangle </span>
<span>(x,y) Vertices: A (8.5788,5.1386) , B (7,0) , C (0,0)</span>
6 0
3 years ago
if a cart started rolling down a hill at 2 m/s, and 5 seconds later it was moving at 12 m/s, what was the carts accelaration
irga5000 [103]

Answer:

2 m/s^2

Step-by-step explanation:

Acceleration is the rate at which the speed changes.

a = (new speed - old speed)(time)

a = (12 m/s - 2 m/s)/(5 s)

a = (10 m/s)/(5 s)

a = 2 m/s^2

7 0
2 years ago
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