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Bogdan [553]
3 years ago
10

The mean number of people per day visiting a museum in July was 120. If 20

Mathematics
1 answer:
belka [17]3 years ago
6 0
B 140
Cause the mean affected by addition equations
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Need help <br><br> Pls explain
Crank

Given:

The graph of a line.

To find:

The equation of the line.

Solution:

From the given graph, it is clear that the line passes through the points (0,-2) and (-6,8). So, the equation of the line is:

y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)

y-(-2)=\dfrac{8-(-2)}{-6-0}(x-0)

y+2=\dfrac{10}{-6}x

y+2=-\dfrac{5}{3}x

Subtract 2 from both sides.

y=-\dfrac{5}{3}x-2

Therefore, the equation of the line is y=-\dfrac{5}{3}x-2.

7 0
3 years ago
An auto mechanic charges (C) an initial fee of $50 and then $40 per hour. If (h) represents hours, how much will the mechanic ch
Vesnalui [34]

Answer:

$800

Step-by-step explanation:

per hour $40×10hours=$400

$400÷$50=8 times initial fee

8×$50=$400 total initial fee

$400hours fee+$400 initial fee=$800 total payment

7 0
2 years ago
Given the function<br> Calculate the following values:<br> f( - 1) =<br> f(0)<br> f(2)=
Alecsey [184]

-1 is less than 0, so you use the first equation:

3(-1) +2 = -3+2 = -1

f(-1) = -1

For 0 use the 2nd equation:

3(0) + 4 = 0+4 = 4

f(0) = 4

For 2 use the 2nd equation:

3(2) + 4 = 6+4 = 10

f(2) = 10

6 0
3 years ago
If 5 pizzas cost $60, how much will 9 pizzas cost?<br> 10
Alex73 [517]

Answer:

108

Step-by-step explanation:

do 60 divided by 5 and you get 12 so that = 1 pizza then do

12 x 9 to get 108

5 0
3 years ago
Read 2 more answers
what is the center and radius of the circle given the equation, 8x + x-squared - 2y + y-squared - 64 = 0?
RoseWind [281]

Step-by-step explanation:

8x + x² - 2y + y² - 64 = 0

(x + 4)² + (y - 1)² - 81 = 0

(x + 4)² + (y - 1)² = 81

Hencr the center is (-4,1) and the radius is 9.

7 0
3 years ago
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