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nalin [4]
3 years ago
7

Each week you drive 150 miles.your car gets 25 miles to the gallon and gas prices are 3 per gallon.how much gas money will you s

pend on gas each week
Mathematics
2 answers:
Lubov Fominskaja [6]3 years ago
7 0
You will spend 21 dollars each week
tino4ka555 [31]3 years ago
5 0
150miles per week
25 miles per gallon
3 dollars per gallon

\frac{150miles}{1week}* \frac{1 gallon}{25miles}* \frac{3 dollars}{1 gallon}  =$18 dollars per week
(mile and gallons, since the are both on the top and bottom of the fraction cancel out, leaving us with dollars per week)

Answer=$18 per week
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(b) For a function h(theta)=sin3 theta (Theta is in Radian). <br> Find h(pi/3)<br> Find h(pi/2)
vaieri [72.5K]

Part (i)

Plug in theta = pi/3 to get

h(theta) = sin(3theta)

h(pi/3) = sin(3*pi/3)

h(pi/3) = sin(pi)

h(pi/3) = 0 ... use a calculator or the unit circle

<h3>Answer: 0</h3>

=================================================

Part (ii)

Plug in h = pi/2

h(theta) = sin(3theta)

h(pi/2) = sin(3pi/2)

h(pi/2) = -1

<h3>Answer:  -1</h3>
5 0
3 years ago
Which of the following is equal to the rational expression when x -2 or -1? x^2-4/(x+2)(x+1)
Orlov [11]

Answer:

(x+2)(x+1)

Step-by-step explanation:

Assuming im interpreting this correctly, it should be (x+2)(x+1), since if you plug in -2 and -1, it will give you 0, which is the answer.

8 0
3 years ago
Need help, please answer!!!
RoseWind [281]
Find urban know first
7 0
3 years ago
Find the value of y in the formula y=5a-3b c, if a=12,b=4,c=8
liberstina [14]
Y=5a-3b
Y=5(12)-3(4)
Y=60-12
Y=48

You don't have a sign between b and c in the equation, so I cannot help you with the last operation
8 0
3 years ago
Read 2 more answers
Three pounds of lawn seed covers 1800 square feet. How many 4 pound bags are needed to cover 8400 square feet?
g100num [7]
1800 ft² = 3 pounds

[divide by 3 through]
1800 ÷ 3 = 3 ÷ 3
600ft² = 1 pound

[8400 ÷ 600 = 14; so multiply by 14 through]
600 x 14 = 1 x 14
8400ft² = 14 pounds

we need 14 pounds to cover 8400 square feet.

[Find number of 4 pounds bags needed]
14 ÷ 4 = 3.5
So we need to use 4 bags of 14 pounds of lawn seeds.
7 0
3 years ago
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