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Hatshy [7]
2 years ago
12

50 POINTS!!!!! HELP ASAP!

Mathematics
1 answer:
hram777 [196]2 years ago
3 0

Answer:

The inequality for Part A:  −6 °F <  −2 °F

Step by step-

The reason for that us because the -2 is closer to zero on the number line

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Can someone pls help me with this !
Vadim26 [7]

Using a line of best fit, the predicted tsunami speed for the following depths is given by:

a. 1151 km/h.

b. 572 km/h.

c. 130 km/h.

d. 122 km/h.

<h3>How to find the equation of linear regression using a calculator?</h3>

To find the equation, we need to insert the points (x,y) in the calculator.

For this problem, the points (depth, velocity) are given by:

(7000, 943), (4000, 713), (2000, 504), (200, 159), (50, 79), (10,36)

Inserting these points in the calculator, the velocity in function of the depth is:

v(d) = 0.12879d + 121.03448

Hence, the velocities are given as follows:

a. v(8000) = 0.12879 x 8000 + 121.03448 = 1151 km/h.

b. v(3500) = 0.12879 x 3500 + 121.03448 = 572 km/h.

c. v(70) = 0.12879 x 70 + 121.03448 = 130 km/h.

d. v(5) = 0.12879 x 5 + 121.03448 = 122 km/h.

More can be learned about a line of best fit at brainly.com/question/13203683

#SPJ1

8 0
1 year ago
Find the x- and y- intercepts if the line that passes through the given points (-6,-6),(4,-2).
Paul [167]

Answer:

The x-intercept would be 9 and the y-intercept would be -18/5

Step-by-step explanation:

In order to find this we need to first find the slope. To do that we use the two points and the slope equation.

m (slope) = (y2 - y1)/(x2 - x1)

m = (-2 - -6)/(4 - -6)

m = 4/10

m = 2/5

Now that we have the slope, we can use that and either point to find the equation of the line in standard form.

y - y1 = m(x - x1)

y + 6 = 2/5(x + 6)

y + 6 = 2/5x + 12/5

-2/5x + y + 6 = 12/5

-2/5x + y = -18/5

-2x + 5y = -18

Now that we have this, we can find the intercepts through using 0s. First, we put a zero in for y to find the x intercept.

-2x + 5y = -18

-2x + 5(0) = -18

-2x = -18

x = 9

Therefore the x intercept is 9.

We find the y-intercept by doing the opposite. We put a 0 in for x.

-2x + 5y = -18

-2(0) + 5y = -18

5y = -18

y = -18/5

5 0
3 years ago
Read 2 more answers
20). Tasha is planning an expansion of a square flower garden in a city park. If each side of the original is increased by 7m, t
Vikki [24]
144=(x+7)^2  take the square root of both sides...

12=x+7  subtract 7 from both sides...

x=5

So the original was a 5m square.

...

255=WL and you are told that W=L+2 so the equation becomes:

255=(L+2)L

255=L^2+2L

L^2+2L-255=0

L^2+17L-15L-255=0

L(L+17)-15(L+17)=0

(L-15)(L+17)=0  Since L>0...

L=15yd, and since W=L+2, W=17yd so

length=15, width=17yd
8 0
3 years ago
A bicyclist rides 16 km in 30 min. What is the bicyclist's average speed in km/h?
kow [346]

Answer:

32 km/h

Step-by-step explanation:

Since there are 60 minutes in an hour, we can find their speed in km/h by multiplying the current distance by 2:

16(2)

= 32

This means the bicyclist can ride 32 km in 1 hour.

So, their speed is 32 km/h

6 0
3 years ago
Whatcha statements describes the graph of the system of equations
ch4aika [34]

Answer:

Lines are parallel

Step-by-step explanation:

6 0
3 years ago
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