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ella [17]
3 years ago
6

I need help (please show your work)

Mathematics
1 answer:
oksano4ka [1.4K]3 years ago
6 0

Answer:

the solution is (-4, 3)

Step-by-step explanation:

if you were to graph y = -7/4x - 4 you could plot your first point at (0, -4) and get your second point by going up 7 units (from (0, -4) and to the left by 4

if you were to graph y = -1/4x + 2 you could plot your first point at (0, 2) and get your second point by going up 1 unit (from (0, 2) and to the left by 4

the second point plotted for each equation will be the point of intersection, (-4, 3)

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What is F(8) if f(x) = 15x
Lilit [14]

Answer:

F(8)=120

Step-by-step explanation:

f(x)=15x

f(8)=15(8)

f(8)=120

6 0
3 years ago
A radio transmission tower is 170 feet tall. how long should a guy wire be if it is attached 15 feet from the top and is to make
beks73 [17]
The image of the given scenario is attached below.

A right angled triangle is formed, with one angle equal to 27 degrees. The perpendicular side is 155 and we are to find the length of guy wire which makes the hypotenuse of the right angled triangle.

Using the formula of sine, we can write:

sin(27)= \frac{155}{x}  \\  \\ 
x= \frac{155}{sin(27)} \\  \\ 
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Rounding to nearest whole number, the length of the guy wire that must be attached is 341 feet. 

5 0
3 years ago
The cost y (in dollars) to rent a kayak is proportional to the number x of hours that you rent the kayak. It costs $27 to rent t
Natalija [7]
Y= 9x. If 27 dollars is the cost for 3 hours, finding the price for one hour is simple. You would take the cost divided by the time. The slope would be 9 because if you graphed (1,9) (2,18) and (3,27) [the costs per the hours] you could find that, what I use, rise over run. Basically, you can count how far from two points to get slope. Starting with the y, from 9 to 18 is 9. Then, with x, 2 to 1 is 1. So, the slope is 9/1 or 9
3 0
3 years ago
Help? Question is above. 12 points
vladimir2022 [97]

Answer:

Step-by-step explanation:

Q5) 4/9 is 0.4 recurring not just “0.4”

Q6) 6 and 7

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7 0
3 years ago
Find the volume of soup can if the diameter is 6.5 in and the height is 9 in
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Answer:

V =298.49625 in^3

Step-by-step explanation:

Volume of a cylinder is given by

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We know the diameter so we can find the radius

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and we know the height =9

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V = pi*95.0625

If we approximate by 3.14

V = 3.14*95.0625

V =298.49625 in^3

5 0
3 years ago
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