Answer:
See below
Step-by-step explanation:
<u>Problem 6</u>
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<u>Problem 7</u>
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<u>Problem 8</u>
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<u>Problem 9</u>
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Remember your trigonometry formulas and fix the problems you already did. They look wrong.
Answer:
y = 18.38 + 0.0634x
Step-by-step explanation:
Given,
Monthly base charge = $18.38,
Also, the cost of each kilowatt-hours = 6.34 cents = $ 0.0634
( 1 cents = 0.01 dollars ),
So, the cost of x kilowatt-hours = 0.0634x,
If y represents the total monthly charge ( in dollars ) for x kilowatt-hours,
Thus, the total monthly charge for x kilowatt-hours = base charge + cost of x kilowatt-hours,
⇒ y = 18.38 + 0.0634x
Which is the required equation.
Answer:
-22.2
Step-by-step explanation:
Then, because the problem states "is at least" we know this is an inequality problem and specifically the inequality operator is:
≥
Now, we can write and solve the inequality as:
5(x+26)≥19(5x(5×26)≥195x+130≥195x+130−130≥19−1305x+0≥−1115x≥-1115x5≥−11155x5≥−22.2x≥−22.2
The number is at least
−22.2 or the number is greater than or equal to −22.2
This is the concept of scales factors, given that two similar solids with 729 inches^3 and 125 inches^3. The volume scale factor will be given by:
(volume of larger solid)/(volume of smaller solid)
=729/125
but
linear scale factor=(volume scale factor)^1/3
thus the linear scale factor will be:
(729/125)^1/3
=9/5
Also, area scale factor will be given by:
area scale factor=(linear scale factor)^2
=(9/5)^2
=81/25
The area of the larger solid will be given by:
let the area be A;
A/74.32=81/25
thus
A=81/25*74.32
A=240.7968 inches^2
