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iogann1982 [59]
3 years ago
11

Help needed asap please?

Mathematics
1 answer:
OleMash [197]3 years ago
6 0

Answer:

its 72

Step-by-step explanation:

i already solved this question yesterday. :)

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6. Write an equation of a line parallel to y = 3x + 9 and goes through the point (-1,5).
lisabon 2012 [21]

Answer: The equation parallel to the line is y=3x+8

Step-by-step explanation: Parallel lines have the same gradients, wr have a gradient for the above line which 3. The standard formula for the linear equation is y=mx+c

We have to calculate c since we have x and y.

y=mx+c

5= 3(-1)+c

c=8

The equation become y=3x+8

4 0
3 years ago
A cyclist travels 5.8 km in 30 minutes. <br> What is his average speed in km/h?
Sauron [17]

Answer:

11.6km/h

Step-by-step explanation:

multiply 30 min by 2 to get to an hour

multiply 5.8 by 2 to get to km per hour

4 0
3 years ago
Read 2 more answers
A rectangular swimming pool has a base of 200 square feet. The pool has a depth of 5 feet.
xz_007 [3.2K]

Answer:

  1,000 ft³

Step-by-step explanation:

The volume is given by ...

  V = Bh

where B is the area of the base, and h is the height. For the given dimensions, the volume is ...

  V = (200 ft²)(5 ft) = 1000 ft³

3 0
2 years ago
Find the average rate of change of f(x)=2x^2-7x from x=2 to x=6
scoundrel [369]

Answer:

Step-by-step explanation:

The average rate of change of a function f between a and b (a< b) is :

R =[f(b)-f(a)] ÷ (a-b)

●●●●●●●●●●●●●●●●●●●●●●●●

Let R be the average rate of change of this function

f(6) = 2×6^2 - 7×6 = 72-42 = 30

f(2) = 2×2^2 - 7×2 = 8-14 = -6

R = [f(6) - f(2)]÷ (6-2)

R = [30-(-6)] ÷ 4

R = -36/4

R = -9

■■■■■■■■■■■■■■■■■■■■■■■■■

The average rate of change of this function is -9

8 0
3 years ago
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What is the surface area of the triangular pyramid that can be formed from this net?
marissa [1.9K]

Answer:

32

Step-by-step explanation:

32

my answer is right

6 0
3 years ago
Read 2 more answers
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