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Marina CMI [18]
3 years ago
8

Cornelius is building a solar system model. He plans on making a circular ring around one of the planets out of wire. He wants t

o know how long he should make the wire to position around the planet. Select all the formulas that coulr be used to determine the length of the circular ring.
Mathematics
1 answer:
astra-53 [7]3 years ago
6 0

Answer:

C = 2\pi r

C = \pi d

Step-by-step explanation:

Given

A circular ring

Required

The length

Let

r \to the radius of the ring

The length is calculated by calculating the circumference of the ring.

This is calculated using:

C = 2\pi r

or

C = \pi d

Where

d \to diameter

and d = 2r

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leva [86]

Answer: Well sampling is the process of choosing a representative sample from a target population and collecting data from that sample in order to understand something about the population as a whole. A data sample is a set of data collected and the world selected from a statistical population by a defined procedure.

Step-by-step explanation:

8 0
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A jeweler has 36 inches of silver chain. She needs 5 time that much to make some necklaces. How much silver chain does the jewel
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36 *<span> 5 = 180 
hope this helps




</span>
4 0
3 years ago
D+7/−3=4<br> What is d?<br> Thanks!
givi [52]

Answer

\boxed {d= \frac{19}{3}}


Solution

Simplify both sides of the equation.


\frac{7}{3} + \frac{-7}{3}


We are left with d = 4+\frac{7}{3}


Add

\frac{12}{3}+\frac{7}{3} =\frac{19}{3}


Hence, d = \frac{19}{3}


7 0
3 years ago
What are the vertex and x-intercepts of the graph of the function given below?
olchik [2.2K]
The correct question is
<span>What are the vertex and x-intercepts of the graph of the function given below?
y = x</span>²<span>-2x-35

step 1
convert the equation in the vertex form
y+35=x</span>²-2x
y+35=(x²-2x+1-1)
y+35+1=(x²-2x+1)
y+36=(x-1)²------> equation in the vertex form

the vertex is the point (1,-36)

the answer Part a) is
the vertex is the point (1,-36)

Part b) Find the x-intercepts
we know that
the x-intercepts is when y=0
so
y+36=(x-1)²
for y=0
(x-1)²=36
(+/-)(x-1)=√36-------> (+/-)(x-1)=6
(+)(x-1)=6------> x=6+1-----> x=7
(-)(x-1)=6-----> x=1-6-----> x=-5

the x-intercepts are the points
(7,0)  and (-5,0)

the answer part b) is 
the x-intercepts are the points (7,0)  and (-5,0)

the total answer is the option 
<span>A. Vertex: (1, -36); x-intercepts: (7, 0) and (-5, 0)</span>
6 0
3 years ago
Are shape I and shape Il similar? If so, give the dilation that proves they are similar. If not, explain why the shapes are not
joja [24]

Answer:

They are similar.

Step-by-step explanation:

They are similar because, the top triangle has one more square to the height as well as the width. If you take one square away from the height and width the top triangle is the same size as the bottom triangle.

7 0
3 years ago
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