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lukranit [14]
3 years ago
5

Bridgette has drawn a representation of a sphere with a radius of 3 units, using the graphs of a circle and an ellipse, as shown

in the picture below on the left.
She needs to determine the equations of the graphs that will generate the representation of the 3D sphere, as shown in the picture below on the right.

What are possible equations of the circle and ellipse that Bridgette can use to create her 3D drawing?

Mathematics
1 answer:
aleksklad [387]3 years ago
7 0

Answer: C (divide the arc's)

Step-by-step explanation:

158 IQ last time i checked

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. There are 10 beads in a bag. 5 beads are black; 3 beads are white and the rest are red. A bead is picked at random. Find the p
Bingel [31]

Part A

P(white) = (3 white)/(10 total) = 3/10

<h3>Answer: 3/10</h3>

==============================================

Part B

10 total, 3 are white

10-3 = 7 are not white so they are either black or red

P(black or red) = 7/10

<h3>Answer: 7/10</h3>

==============================================

Part C

Earlier in part B we calculated 7 beads that weren't white

This means P(not white) = P(black or red) = 7/10

They are the same probability just phrased slightly different ways.

<h3>Answer: 7/10</h3>

==============================================

Part D

There aren't any blue beads (unless there's a typo somewhere). So the probability of picking not blue is 100% or we represent this as the value 1.

<h3>Answer: 1</h3>
3 0
2 years ago
Solve the following quadratic equation using the quadratic formula.<br><br> −2y^2+5=7y
Vikki [24]

Answer:

y=(7±√89)/-4

Step-by-step explanation:

y=(-b±√b^2 -4ac)/2a

Rewrite given equation in quadratic form so it is -2y-7y+5=0

Then, in formula, sub -2 for a, -7 for b, and 5 for c

y=-(-7)±√(-7)^2 -4(-2)(5)/2(-2)

When you multiply that out you get

7±√49-(-40)/-4

The next step is the answer given above

If you need the answer not in sq rt form, it is y=-4.1085 and y=0.0608

3 0
3 years ago
Tools
nexus9112 [7]

Answer: 104

Step-by-step explanation:

5 0
3 years ago
Match the equation with the data set.
erastovalidia [21]

Answer:

uhhhh maybe add a picture ?

Step-by-step explanation:

8 0
3 years ago
7^(x+4)=-34 solve for x
damaskus [11]

for
x^m=y
that means
log_x(y)=m
so

7^{x+4}=-34 means

log_7(-34)=x+4
minus 4 from both sides
log_7(-34)-4=x

6 0
4 years ago
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