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Free_Kalibri [48]
3 years ago
5

Help me answer question 8a and b, and I’ll give u 10 points lol

Mathematics
1 answer:
iren [92.7K]3 years ago
3 0

Answer:

Step-by-step explanation:

Find h when v = 20 and r = 3

Putting values in the formula

20 = (3.14)(3)2h

20 = (3.14)(9)h

20 = 28.26h

20/28.26 = h

R when v = 100 and h = 5

100 = (3.14)r2(5)

100/5 = 3.14r2

20 = 3.14r2

20/3.14 = r2

6.36 = r2

Square root on both sides

2.52 = r

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How do i find LM? On number 2 .
Masja [62]
Given: KL is a tangent to the circle.
LM is another tangent to the circle.

We can use the tangent meeting at an external point theorem.
<em>Theorem</em>: <em>The tangent segments to a circle from an external point are equal.
</em>
Thus, we can say KL = LM, as they lie on a common circle, and are tangents to such circle.

4x - 2 = 3x + 3
4x - 3x = 3 + 2
x = 5

Since LM is 3x + 3, we can substitute the value of x to LM to render:
3(5) + 3 = 18

Thus, LM = KL = 18 units.
4 0
3 years ago
Help me ASAP!
Wewaii [24]

Answer:

200 actual miles

Step-by-step explanation:

Find the actual distance by multiplying 50 by 4, since there are 50 miles in 1 inch.

50(4)

= 200

So, there are 200 actual miles between the two cities.

8 0
3 years ago
The solution set to the inequality y&lt;2x - 4 are shaded on the graph. Which point is a solution
BaLLatris [955]

Any set of numbers (x, y) for which this inequality is true is a solution.

For example, the point (1, -5) is a solution because fitting it into the inequality gives us

<u>- 5 < - 2</u>   which is true.

However, the point (3, 5) wouldn't be a solution because it would give us the inequality

<u>5 < 2</u>    which is not true.

6 0
3 years ago
Please answer honestly : )
FrozenT [24]

Answer:

D) J

B) point Q

Step-by-step explanation:

we know that the ginipigs are only given 80 in total. that means 80 is 100%

40÷80*100=50%

20÷80*100=25%

10÷80*100= 12.5%

10÷80*100= 12.5%

all this together is 100%

meaning the best answer is

Q is the only place that = -1/2

3 0
3 years ago
The difference of a number and 9 <br><br> •write as a algebraic expression
otez555 [7]

Answer:

x - 9

Step-by-step explanation:

5 0
3 years ago
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