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3 years ago

What is the solution set of x^2-36=0

Mathematics

1 answer:

erik [133]3 years ago

3 0

Plus and minus 6......

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In a game of football outdoors on a cold day, a player will begin to feel exhausted after using approximately 8.0 × 105 J of int

Julli [10]

Answer:

a) How much work has he done = dW = 1.3 × 105 J

b) What is the magnitude of the heat that he has lost = dQ = -5.4 × 105 J

Step-by-step explanation:

From the first law of thermodynamics; dQ = dU + dW

dU = -8.0 × 105 J

dQ = -6.7 × 105 J

Hence, work done dW = dQ - dU

dW = -6.7 × 105 J - ( -8.0 × 105 J)

dW = 1.3 × 105 J is the work done by the player

for heat lost; from dQ = dW + dU

dU = -8.0 × 105 J and dW = 2.6 × 105 J

heat lost dQ = 2.6 × 105 J + ( -8.0 × 105 J)

dQ = -5.4 × 105 J

The negative is as a result of heat lost by the player

6 0

3 years ago

Fill in the blanks. According to estimates by the office of the Treasury Inspector General of IRS, approximately 0.07 of the tax

maks197457 [2]

Answer:

20.72; 4.39

Step-by-step explanation:

The expected number of fraudulent returns is given by the probability that a return is fraudulent multiplied by the number of returns in the sample:

$E(F) = 0.07*296=20.72$

The standard deviation of this binomial probability with p =0.07 and n = 296 is:

$\sigma =\sqrt{np(1-p)}\\\sigma =\sqrt{296*0.07(1-0.07)}\\\sigma=4.39$

Therefore, in a random sample of 296 independent returns from this year, around 20.72 returns, give or take 4.39, will be fraudulent or will contain errors that are purposely made to cheat the IRS.

5 0

4 years ago

An electronics store receives a shipment of 3030 graphing calculators, including 33 that are defective. four of the calculators

Blizzard [7]

33/3030x4/3030=132/9180900

9180900-132=9180768

9,180,768 selections will contain no defective calculators. Hope this helps.

4 0

4 years ago

The side of a square measures 2x^2y^3 what is the area of the square if x=-2 and y=2

valentina_108 [34]

Here is your answer

4096  $({units})^{2}$

REASON:

Given, x= -2 and y= 2

Measure of each side of square=

$2 {x}^{2} × {y}^{3}$

Putting the values of x and y in above relation, we get

Side of square

$= 2 \times({ - 2})^{2} \times ({2}^{3})$

$= 2 \times 4 \times 8$

$= 64 \: units$

Now,

area of square= $({side})^{2}$

$= {64}^{2} {units}^{2}$

$4096 \: {units}^{2}$

HOPE IT IS USEFUL

4 0

4 years ago

Read 2 more answers

Please need help asap!

beks73 [17]

Answer:

Step-by-step explanation:

(z-33)/z = 1/2

2z-66=z

z=66

6 0

3 years ago