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3 years ago

PLEASE DO 2 AND 3 FOR 25 POINTS PLEASE BE SPECIFIC ON WHAT QUESTION IT IS AND HOW YOU DID IT.

Mathematics

1 answer:

m_a_m_a [10]3 years ago

6 0

Answer:

I disagree with Luis's claim. While 8*3=24, 8^3 is 512mm. Which is 488mm more than 24mm.

201 inches.

Step-by-step explanation:

They use the expression s^3 to find the volume of plastic to make each cube. Luis says that if s=8, then the volume is 24 cubic mm. I disagree with Luis's claim. While 8*3=24, 8^3 is 512mm. Which is 488mm more than 24mm.

Part A

Blue: 3ft - 36in

Red: 60in - 5ft

Yellow: 2.5ft - 30in

Green: 12ft - 144in

Purple: 240in - 20ft

Part B

1 foot = 12 inches

16.75ft = 201in

I'm not sure how to do the expression

but if 1 foot = 12 inches, and you substitute 16.75 for a foot, then you have 201 inches.

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A bag contains 5 blue marbles, 3 red marbles, and 2 yellow marbles. You select a marble at random. What is P(yellow) ?

Tasya [4]

There are a total of 10 marbles. Out of those 2 are yellow.

So, the probability of picking a yellow marble is 2/10, or 1/5 simplified.

As a percentage, this is 20%

Hope this helps :)

3 0

4 years ago

A basketball is launched from a sling shot. Its height, h(x), can be represented by a quadratic function in terms of time x, in

BaLLatris [955]

Answer:

309 feet

Step-by-step explanation:

given that the height can be represented by a quadratic equation, we can say that the general form of the equation will look something like this:

h(x) = Ax² + Bx + C

we know that at the starting point of the launch that time = 0 (i.e x = 0) and hence h (x) = 0, if we substitute this into our equation, we can find the value for C

h(0) = A(0)² + B(0) + C = 0

C = 0

Hence the equation becomes

h(x) = Ax² + Bx

Given when x = 1, h(1) = 121,

121 = A(1)² + B(1)

A + B = 121 ------> eq 1

Given when x = 2, h(2) = 224,

224 = A(2)² + B(2)

4A + 2B = 224 (divide both sides by 2)

2A + B = 112------> eq 2

Solving the system of equations which comprise eq 1 and eq 2 using your favorite method, we end up with A = -9 and B = 130

our equation becomes:

h(x) = -9x² + 130x

when x = 3

h(3) = -9(3)² + 130(3) = 309 feet

6 0

3 years ago

Find an equation of the circle that has center (-1, 3) and passes through (-4, -2)

shepuryov [24]

Answer:

Your answer would be $(x + 1)^{2} + (y - 3)^{2} = {34}$ .

Step-by-step explanation:

The formula for the equation of a circle is $(x - h)^{2} + (y - k)^{2} = r^{2}$ , where (h, k) is the center of the circle, and r is the radius. Since the center is (-1, 3), the left half of the equation is $(x + 1)^{2} + (y - 3)^{2}$ . Now, all we have to do now is find the radius, r. To do that, you can use the distance formula to find the distance between the center (-1, 3) and a point that passes through the circle, or is on the circumference, (-4, -2). When you calculate that, you will get $d = \sqrt{34}$ , so the radius is $\sqrt{34}$ . But, we want the radius squared, which is 34. So, the final answer is what I wrote above.