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2 years ago

A math test is worth 100 points and has 30 problems.

Mathematics

1 answer:

mr_godi [17]2 years ago

3 0

Answer:

I think 15

Step-by-step explanation:

15+15=30, so both 3 or 4 point questions have 15 problems each, hope this helped

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(1) the diameter is 20 inches whats the radius? And whats the circumference?

Alecsey [184]

(1) the diameter is 20 inches whats the radius? And whats the circumference?

Radius is half the diameter, Answer: 10 inches

Circumference is pi times the radius, Answer: 10π inches

I won't bother with the approximation, though this one is easy, 31.4159 inches. I'll leave the rest of the calculator work to you if necessary.

(2) the diameter 11 inches whats the radius? And whats the circumference?

Radius half, Answer: 5.5 inches. Circ: 5.5π inches

(3) the diameter 3.5 inches whats the radius? And whats the circumference?

Radius, 1.75 inches. Circ: 1.75π inches

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2 years ago

What is the y-intercept of the line y+11= -2(x+5)?

poizon [28]

Answer:

y-intercept is (0, -21)

Step-by-step explanation:

For y-intercept, x = 0:

${ \sf{y + 11 = - 2(0 + 5)}} \\ { \sf{y + 11 = - 10}} \\ { \sf{y = - 21}}$

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2 years ago

A cable television company randomly calls 200 customers and asks them if they are satisfied with their service

BigorU [14]

What is the question?

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3 years ago

(Factoring by Graphing) How do u solve this

Elanso [62]

Graph the equation. There are multiple ways to do this.

You can create a table of values, use the quadratic formula, convert from standard to vertex form.

If you're trying to factor, you'll eventually notice this thing cannot be factored (no roots!). If you use the quadratic formula, you will get an imaginary answer (no roots!)

If you go in the route of picking points and coming up with a table of values you'll get a graph like this (see attachment) Notice there are no roots! because the graph never ever hits the x-axis

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3 years ago

Whats the answer to this one?

natta225 [31]

The answers are P: (-4,3) Q: (4,-3)

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2 years ago