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gizmo_the_mogwai [7]
2 years ago
10

What is the volume of a ball with a diameter of 7 centimeters?

Mathematics
1 answer:
Leviafan [203]2 years ago
7 0
42.88. You might want to wait for another answer jyst to be 100% sure:)
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AB and BC are tangents to P. what is the value of x? this is really so confusing
Westkost [7]
1. Angle PAB is 90 degrees, as it is formed from the tanget to the circle at A, and the radius drawn to A. 

2. AB=BC, because tangents drawn to a circle from the same point are equal.

3. PB is Common, so by the side-side-side congruence postulate, triangles ABP and CBP are congruent. 

4. So measure of m(BPA)=x/2 and m(ABP)=73/2.

5. \frac{x}{2}+90+ \frac{73}{2}=180

\frac{x+73}{2}=90

x+73=180, x= 107 degrees.

4 0
3 years ago
Marissa goes to the beach and places a mirror on the ground so when she looks down at it she can see the reflection to the top o
Ray Of Light [21]

Answer:

69 feet

Step-by-step explanation:

took quiz

5 0
3 years ago
The two polygons above are similar. The scale factor of the smaller polygon to the larger polygon is 3. The area of the smaller
Softa [21]
You would think it was 3 * 12 = 36. Not so. All polygons have to be broken down into some figure that will give 2 dimensions that are at right angles to each other. That would mean that
d1 * d2 = Area for the small polygon
3d1 * 3d2 = area of the larger polygon

What that means is that the area of the larger one is 9 times the smaller one.
Area large = 12 * 9 = 108 square units. <<<<< answer.

If you find this hard to be leave try it with a square.
Suppose you have a square (the small one) that is 3 cm by 3 cm
The small one has an area of 3*3 cm^2 = 9 cm

Now you have another square that is 3 times larger. That means that each side is 3*3 = 9
So s = 9
Area = s^2
Area = 9^2 = 81 cm^2
81 is 9 times larger than 9 just as you would think. 


4 0
3 years ago
What is the value of x in the equation below?<br><br> 6 (x minus 8) = 72
9966 [12]

Answer:

x = 20

Step-by-step explanation:

6(x - 8) = 72 \\ 6x - 48 = 72 \\ 6x = 120 \\ x = 20

5 0
3 years ago
Read 2 more answers
Write an appropriate inverse variation equation if y = 9 when x = 3.
pav-90 [236]
\bf \qquad \qquad \textit{direct proportional variation}\\\\&#10;\textit{\underline{y} varies directly with \underline{x}}\qquad \qquad  y=kx\impliedby &#10;\begin{array}{llll}&#10;k=constant\ of\\&#10;\qquad  variation&#10;\end{array}\\\\&#10;-------------------------------\\\\&#10;\begin{cases}&#10;y=9\\&#10;x=3&#10;\end{cases}\implies 9=k3\implies \cfrac{9}{3}=k\implies \boxed{3=k}&#10;\\\\\\&#10;thus\qquad y=3x
3 0
3 years ago
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