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Alexandra [31]
3 years ago
6

Circle P has a circumference of approximately 75 inches.

Mathematics
1 answer:
rosijanka [135]3 years ago
7 0
I’d say 12 but i could be wrong
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Please help me this is from khan academy :(((
Dmitrij [34]

Answer:

y=1.4x+6.8

Step-by-step explanation:

(-2;4) (-7;-3)

4=-2k+b

-3=-7k+b

7=5k

k=1.4

-2.8+b=4

b=6.8

I already know k and b so I can write an equation.

y=1.4x+6.8

6 0
3 years ago
Please help! I don't understand this.​
nydimaria [60]

Answer:

1) 7

2) 49

3) 56

4) 9

5) 91

Step-by-step explanation:

For the day blanks, you just multiply the number of weeks by 7.

For the week blank, you divide 63 by 7

3 0
3 years ago
How many times can you run a lap in 12 minutes around a 290ft long track.....
White raven [17]
I can run that mybe 40 times
8 0
3 years ago
Write an equation of the line passing through point p that is parallel to the given line.
Thepotemich [5.8K]

Answer:

Step-by-step explanation:

y=-3x+13

y = mx + b, where m is the slope and b is the y-intercept.

A line parallel to this line will have the same slope, -3.  We can start by writing:

y = -3x + b

No matter what is chosen for the value of b, this line will be parallel.  We do want the line to go through point (6,10), however.  The way that can be done is to find a value of b that would shift the line to go through (6,10).

Find b by entering the point (6,10) into the equation, and then solve for b:

y = -3x + b

10 = -3(6) + b

10 = -18 + b

b = 28

The line becomes y = 3x + 28

See the attachment.

8 0
3 years ago
Find a quadratic model for the set of values: (-2, -20), (0, -4), (4,-20) Show your work
Usimov [2.4K]
A quadratic function:
y=ax^2+bx+c

First, take the point (0,-4) and plug the values (x,y) into the equation:
-4=a \times 0^2+b \times 0 +c \\
-4=c

So the equation is y=ax^2+bx-4.

Now plug the values of the other two points into the equation and set up a system of equation:
-20=a \times (-2)^2+b \times (-2)-4 \\
-20=a \times 4^2+b \times 4-4 \\ \\
-20+4=4a-2b \\
-20+4=16a+4b \\ \\
-16=4a-2b \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ | \div 2 \\
-16=16a+4b \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ |\div 4 \\ \\
-8=2a-b \\
\underline{-4=4a+b} \\
-12=6a \\
\frac{-12}{6}=a \\
a=-2 \\ \\
-8=2a-b \\
-8=2 \times (-2)-b \\
-8=-4-b \\
-8+4=-b \\
-4=-b \\
b=4

The function is:
\boxed{y=-2x^2+4x-4}
5 0
3 years ago
Read 2 more answers
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