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9966 [12]
3 years ago
9

Pls help :( The graph shows the relationship between a puppy’s weight y, in ounces, and time x, in months, as it grows. Which fu

nction best represents this relationship?
answer choices :

A. y = 3x + 4

B. y = 4x + 6

C. y = 6x + 4

D .y = 4x + 3

Mathematics
1 answer:
Ulleksa [173]3 years ago
4 0

Answer:

c y=6x+4

Step-by-step explanation:

y=mx+b.  m= slope b= y intercept

at x=0, the graph is at y=4, so that is b. Slope is up/over. so from point (0,4) to point (2,16), the graph went up 12 and over 2. 12/2=6

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I really need help with all these lol
hodyreva [135]
1: 3;
2left: 6;
2right: 10
3left: 8
3right: 3*sqrt(8);
4left: 8;
4right: 6;
Hope this helps.
8 0
3 years ago
What is the approximate volume of a cone with a height of 8 cm and a radius of 12 cm? Use 3.14 for pie.
lawyer [7]

Answer:

A

Step-by-step explanation:

The volume of the cone is found using the volume formula for a cone V=\frac{1}{3}\pi r^2h.

Substitute h=8 and r = 12.

V = \frac{1}{3}\pi r^2h\\V = \frac{1}{3}\pi (12^2)(8)\\V=\frac{1}{3}\pi *144*8\\V = \frac{1152}{3}\pi \\V= 384\pi \\V=1,205.76

So the volume is approximately 1,206 cubic cm.

3 0
3 years ago
Use the substitution method to solve the system of equations. Choose the
luda_lava [24]

Answer:

(2, 22 )

Step-by-step explanation:

Given the 2 equations

y = 7x + 8 → (1)

y = x + 20 → (2)

Substitute y = 7x + 8 into (2)

7x + 8 = x + 20 ( subtract x from both sides )

6x + 8 = 20 ( subtract 8 from both sides )

6x = 12 ( divide both sides by 6 )

x = 2

Substitute x = 2 in (2) for corresponding value of y

y = x + 20 = 2 + 20 = 22

Solution is (2, 22 )

7 0
3 years ago
For some postive value of Z, the probability that a standardized normal variable is between 0 and Z is 0.3770. The value of Z is
Talja [164]

Answer:

1.16

Step-by-step explanation:

Given that;

For some positive value of Z, the probability that a standardized normal variable is between 0 and Z is 0.3770.

This implies that:

P(0<Z<z) = 0.3770

P(Z < z)-P(Z < 0) = 0.3770

P(Z < z) = 0.3770 + P(Z < 0)

From the standard normal tables , P(Z < 0)  =0.5

P(Z < z) = 0.3770 + 0.5

P(Z < z) =  0.877

SO to determine the value of z for which it is equal to 0.877, we look at the

table of standard normal distribution and locate the probability value of 0.8770. we advance to the  left until the first column is reached, we see that the value was 1.1.  similarly, we did the same in the  upward direction until the top row is reached, the value was 0.06.  The intersection of the row and column values gives the area to the two tail of z.   (i.e 1.1 + 0.06 =1.16)

therefore, P(Z ≤ 1.16 ) = 0.877

8 0
3 years ago
The electrician arrives at Laura’s house to fix her broken furnace. The electrician charges 90 dollars for the first hour and 60
PIT_PIT [208]

Answer:

4 hours

Step-by-step explanation:

Since the initial fee is $90, you will subtract $90 from $330, getting $240. Since every hour after 1 hour is $60, you would divide $240 by $60 getting 4 hours

4 0
3 years ago
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