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Julli [10]
3 years ago
7

What is the area of the semi circle whose radius is 8cm

Mathematics
1 answer:
Viefleur [7K]3 years ago
6 0

Answer:

Area of a semicircle = ½ × πr²

= ½ × 3.14 × (8)²

= 3.14 × 4 × 8

= 100.48 cm²

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Match each part of the expression with what it represents
Natasha2012 [34]

The monomial x would be the length of the sports banner.

-We know this because we typically use a basic variable for the thing that does not change. In this case, the length of the sports banner remains the same.

The second degree term in the expression would be the increase in area of the culture banner to make the sports banner.

-We can tell this because when we increase the width of the banner by 12, the resulting polynomial is 12x larger than x^2 (which was the original area of the culture banner.

The binomial expression x + 12 would be the width of the sports banner.

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The first degree term in the expression would be the area of the culture banner.

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6 0
3 years ago
I need help with 15.) 17.) and 19.) I have attached the answers I just need help with how to solve them
SOVA2 [1]

Answer:

Step-by-step explanation:

They are all solved kind of the same way. If the vertex of the angle is outside of the circle, subtract the intercepted arcs and divide by 2

for 15) one arc is marked but you can figure out the other arc because there are 360 degrees in a circle  360 - 102 = 258. So the two arcs are 102 degrees and 258 degrees.

some of the problems you can set up the equation and solve.

17) 63 = {(360-x) - x} /2     multiply by 2

126 = {(360-x) - x}     combine like terms

126 = 360 - 2x           subtract 360

-234 = -2x                   divide by -2

117 = x

? = 117 degrees

good luck

3 0
3 years ago
1/4 (g + 2) = 8<br><br> Thank you
Irina-Kira [14]

Answer:

<h2>g = 30</h2><h2 />

Step-by-step explanation:

1/4 (g + 2) = 8

g + 2 = 8 (4)

g = 32 - 2

g = 30

3 0
3 years ago
Help me with this please
Leviafan [203]

Answer:

F'

Your answer is correct

Step-by-step explanation:

The image most of the time we will put ' prime on it to let the other know that this is the image

7 0
3 years ago
Read 2 more answers
Solve: 1/3x + 7 = 15
olganol [36]


See below for solution
6 0
3 years ago
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