2 years ago

It takes 25 minutes to prepare the cake mixture and 70 minutes to bake in the

Mathematics

1 answer:

ruslelena [56]2 years ago

5 0

Answer:

she will start making it at 10 am

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A wheel with radius 1 foot makes 1 revolution in 4 seconds. What is the linear velocity, in feet per second, of a point on the e

Alona [7]

In one revolution of the wheel, a point on the edge travels a distance equal to the circumference of the wheel.

The wheel has radius 1 ft, so its circumference is 2π (1 ft) = 2π ft.

Then the point has a linear speed of

(1/4 rev/s) * (2π ft/rev) = 2π/4 ft/s = π/2 ft/s

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2 years ago

What is the completely factored form of d4 − 81?

lilavasa [31]

For this case we must factor the following expression:

$d ^ 4-81$

Rewriting the expression:

$(d ^ 2) ^ 2-9 ^ 2$

We factor using the formula of the square difference:

$a ^ 2-b ^ 2 = (a + b) (a-b)$

Where:

$a = d ^ 2\\b = 9$

So:

$(d ^ 2 + 9) (d ^ 2-9)$

From the second term we have:

$d ^ 2-3 ^ 2 = (d-3) (d + 3)$

Finally, the factored expression is:

$(d ^ 2 + 9) (d-3) (d + 3)$

Answer:

$(d ^ 2 + 9) (d-3) (d + 3)$

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2 years ago

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Find all zeros and write the answers in factored form (x-5)(3x^2-8x+6) =0

katen-ka-za [31]

Answer:

x-5=0

x=5

3x2-8x+6=0

d= 64 - 4*3*6= -8

x≠R

answer: only x=5

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2 years ago

PLEASE HELP ME!!!! WORTH 10 POINTS!!!

Sidana [21]

slope
m = (1 - 1)/(0 + 2) = 0

(x1, y1) as (-2, 1)

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2 years ago

I need to use the method of elimination for this math problem.

Mumz [18]

Answer:

Step-by-step explanation:

____________

Good evening ,

_________________

Look at the photo below for the answer.

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2 years ago