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andrew11 [14]
2 years ago
5

The base of a pyramid has n sides. write an expression for the number of corners on the pyramid.

Mathematics
1 answer:
melisa1 [442]2 years ago
7 0

Answer:

n+1

If a pyramid has n number of sides

⇒number of vertices in the base = n

Since in a pyramid there is one vertex on the top,and n number of faces are on the sides,and one face is in the base.

Total number of faces of pyramid = n+1

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In a circle of radius 10 cm, a sector has an area of 40 (pi) sq. cm. What is the degree measure of the arc of the sector?
Rashid [163]

Answer:

144°

Step-by-step explanation:

First, find the area of the circle, with the formula A = \pir²

Plug in 10 as the radius, and solve

A = \pir²

A = \pi(10²)

A = 100\pi

Using this, create a proportion that relates the area of the sector to the degree measure of the arc.

Let x represent the degree measure of the arc of the sector:

\frac{40\pi }{100\pi } = \frac{x}{360}

Cross multiply and solve for x:

100\pix = 14400\pi

x = 144

So, the degree measure of the sector arc is 144°

6 0
3 years ago
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How many triangles can be constructed with 3 angles, each measuring 63°?
earnstyle [38]

Answer:

0

a triangle's angles should add up to be 180 degrees. Three angles of 63's sum is 189

4 0
2 years ago
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Draw the next term if this represents an
Eva8 [605]

Answer:

keep stacking

Step-by-step explanation:

all it is doing is stacking

3 0
8 months ago
Scarlett is playing a video game. She spends 900 minerals to create 18 workers. Each worker costs the same number of minerals.
Crazy boy [7]
It's directly proportional, so
m=kw

Find the value of k
900=k(18)
k= 50

Answer: m=50w
6 0
3 years ago
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Help pls and thank:)
I am Lyosha [343]

Answer:

y=-3x+2

Step-by-step explanation:

Slope-intercept form is given by the equation y=mx+b, where m is defined as the slope and b is defined as the y-intercept (the value on the y-axis that the line crosses). First we can determine the slope by using the slope formula.

m=(y2-y1)/(x2-x1), given two points (x1, y1) and (x2, y2). Keep in mind you can choose which point is (x1,y1) and which is (x2,y2) as long as you are consistent.

Plugging in for (-1,5) and (1,-1), you will get:

m=(-1-5)/(1-(-1))=-6/2=-3

Next, we need to find the y-intercept. For this problem, you can determine it is 2 by looking at the graph of the line. We now have both components to create the slope-intercept form.

m=-3, b=2

y=-3x+2

3 0
3 years ago
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