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3 years ago

How do you find a rate of change

1 answer:

5 0

Consider the line y = 2x + 1, shown at the right. Notice that this slope will be the same if the points (1,3) and (2, 5) are used for the calculations. For straight lines, the rate of change<span> (slope) is constant (always the same). For every one unit that is moved on the x-axis, two units are moved on the y-axis.hope this helped. </span>

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Help!! I need help!<br>

Tasya [4]

Answer:

Step-by-step explanation:

-5x-49>113

+49 +49

———————-

-5x>162

—- ——

-5 -5

x<32.4

6 0

2 years ago

Work out the volume of a cuboid 2cm by 4cm by 5cm

andrew-mc [135]

For a cuboid's volume you simply go length x width x heigth so 2x4x5 so it's 40.

3 0

3 years ago

Read 2 more answers

You want to create a 99% confidence interval with a margin of error of .5. Assuming the population standard deviation is equal t

miss Akunina [59]

Answer:

Sample size minimum is 60

Step-by-step explanation:

given that you want to create a 99% confidence interval with a margin of error of .5.

The population standard deviation is equal to 1.5

i.e. $\sigma = 0.5$

Confidence level = 99%

Since population std deviation is known, we can use Z critical value for finding margin of error

Z critical value for 99% = 2.58

Margin of error = $2.58*\frac{1.5}{\sqrt{n} }$

Equate this to 0.5 and solve for n

$2.58*\frac{1.5}{\sqrt{n} }=0.5\\\sqrt{n} =7.74\\n =59.90\\n=60$

8 0

2 years ago

15 billion in numerals?

Leokris [45]

A billion has 9 zeros. So
15,000,000,000
:)

4 0

3 years ago

Read 2 more answers

A glass containing water is in the shape of a right circular cylinder with a radius of 3

Lubov Fominskaja [6]

Answer:

Step-by-step explanation:

The equation for a cylinder is the radius of the circle times pi squared, multiplied by the height. 3 squared is 9, times pi is 9(pi). If we multiply this by the height, the answer is 90(pi) centimeters in volume.

5 0

3 years ago