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sertanlavr [38]

3 years ago

15

The formula c=√(a^2+4b^2 ) Solve the equation for b. That means get “b” all by itself on one side of the equation. Show your wor

k. Show steps.

1 answer:

fiasKO [112]3 years ago

7 0

Answer:

$b^{2} =\frac{c^{2}-a^{2} }{4}$

Step-by-step explanation:

I believe this is the correct answer. In order to check that my equations are correct I put in some dummy numbers.

a= 2

b=4

c= $2\sqrt{17}$

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In a sample of 66 cabinets, the average height was found to be 32.2in. with a standard deviation of 2.1. Give a point estimate f

andrew11 [14]

Answer:

2.10

Step-by-step explanation:

The point estimate for the population standard deviation of the height of the cabinets equals to the provided standard deviation of the cabinets. Rounding off the given standard deviation which is 2.1 to 2 decimal places as the question requires then the point estimate for the population standard deviation of the height of the cabinets is approximately 2.10 ( 2 decimal places)

7 0

3 years ago

What is the solution(s) to the equation 5a^2 - 44 = 81

Alborosie

Answer:

a=5,a=-5

Step-by-step explanation:

8 0

2 years ago

Erin has a bag of jelly beans and skittles. She has 4 types of jelly beans (red, yellow, green, blue) and 2 types of skittles (g

tatiyna

Answer:

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3 0

2 years ago

A ball is thrown vertically upwards with an initial velocity of 22 m/s. When will its speed be 10

gogolik [260]

Answer:

<em>The ball's speed will be 10 m/s at t=1.22 seconds</em>

Step-by-step explanation:

The vertical motion of an object is controlled by the force of gravity. This means that there is a non-zero net force acting on the object that makes it accelerate downwards.

If the object is thrown upwards at speed vo, its speed at time t is:

$v_f=v_o-g.t$

Where g is the acceleration of gravity $g=9.8 m/s^2.$

Our ball is thrown upwards with v0=22 m/s. We need to calculate the time when its speed is vf=10 m/s.

Solving the above equation for t:

$\displaystyle t=\frac{v_o-v_f}{g}$

Substituting:

$\displaystyle t=\frac{22-10}{9.8}=\frac{12}{9.8}$

t=1.22 seconds

The ball's speed will be 10 m/s at t=1.22 seconds

8 0

3 years ago

Frank is trying to factor y^2+6y-27 . He has determined that one factor is (y + 9). What is the other factor? A. y – 27 B. y – 6

beks73 [17]

The other factor is (y - 3). If you multiply the two terms together, you will end up with $y^2+6y-27$ :

$(y - 3)(y + 9) \\ y^{2} +9y-3y-27 \\ y^2+6y-27$

5 0

3 years ago

Read 2 more answers