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storchak [24]
3 years ago
12

Slope of (1,-2) and (-3,7)​

Mathematics
1 answer:
notka56 [123]3 years ago
6 0

Answer:

-4/9

Step-by-step explanation:

Slope formula: y2-y1/x2-x1

7-(-2)/-3-1

9/-4

-4/9

Best of Luck!

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A.Plot and connect these points: A(1, -3), B(3, -1), C(5, -3)
IRISSAK [1]
There ya go that’s on the chart and pretty easy you should try it out it is actually kinda fun

5 0
3 years ago
Which of the following is a benefit of increasing the sample size when trying to estimate the mean from a sample average?
andrezito [222]

Answer:

Step-by-step explanation:

The larger the sample size, the lower the standard deviation. The standard deviation shows how the data is spread from the mean. Therefore, benefit of increasing the sample size when trying to estimate the mean from a sample average are

a. A reduction in the bias of the estimate.

b. A reduction in the variability of the estimate.

The width of confidence interval is determined by the margin of error

Margin of error = z × s/√n

A smaller standard deviation and increased size would result to a narrower confidence interval. Therefore, increasing the sample size does not result to an increase in the width of the resulting confidence interval.

3 0
3 years ago
Two sides of a triangle are 7 m 7 m and 12 m 12 m in length and the angle between them is increasing at a rate of 0.06 rad/s 0.0
gayaneshka [121]

Answer:

1.26 m^2 / s.

Step-by-step explanation:

The area A of the triangle = 1/2*7*12 sin x  = 42 sin x where x  is the angle between the lines.

Relation between the rates is

dA/dt  + dA/dx * dx/dt

We are given that dx /dt = 0.06 rad/s.

A = 42 sin x

dA/dx = 42 cos x

So dA/dt = 42 cos x * 0.06

When x = π/3  ( I am assuming that π 3 means π divided by 3 ):

dA/dt = 42 cos π/3 * 0.06

= 1.26 m^2/s.

8 0
3 years ago
Could someone pls help me !
Lana71 [14]

Answer:

3

Step-by-step explanation:

24/3 is equaled to 3

if you don't know what that means its 24 divided by 3

6 0
3 years ago
Read 2 more answers
I need help answering. Thanks.
Viefleur [7K]

Answer:

28

Step-by-step explanation:

C or B's so 30% + 40% = 70% so:

70/100 multiplied by 40 because 40 students

7/10 times 40 = 28

8 0
3 years ago
Read 2 more answers
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