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leonid [27]
3 years ago
12

If anyone can help me please

Mathematics
1 answer:
Nina [5.8K]3 years ago
4 0

Answer:

use the slope formula!

Step-by-step explanation:

Rate of change is basically slope

you have to use the slope formula y2-y1/x2-x1

for example in the first question on the left 30-15 ÷ 5-2 = 5

would you like me to do the rest?

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A cone-shaped popcorn cup has a radius of 5 centimeters and a height of 9 centimeters. How many cubic centimeters of popcorn can
guajiro [1.7K]

Answer:

The cup can hold 235.5 cubic cm of popcorn.

Step-by-step explanation:

A cone shaped popcorn cup has a radius of 5 cm and a height of 9 cm.

Use 3.14 as an approximation for pi.

Now, to find cubic cm of popcorn the cup can hold.

Radius (r)= 5 cm

Height (h)= 9 cm

\pi= 3.14 (as per question).

So, to get the cubic cm of popcorn the cup can hold we put formula of volume:

Volume= \pirx^{2} h\frac{x}{y} 3

Volume= 3.14 x 5x^{2} × 9\frac{x}{y}3

Volume= 3x14 x 25 x 3

Volume= 235.5 cubic cm.

5 0
3 years ago
If $-2 < x \le 3,$ then find all possible values of $5x + 1.$ Give your answer in interval notation.
kotegsom [21]

Answer: (-9, 16]

This is the interval from -9 to 16. Exclude -9 but include 16.

=====================================================

Work Shown:

The idea is to multiply all sides by 5, then add 1 to all sides

-2 < x \le 3

5(-2) < 5x \le 5(3)

-10 < 5x \le 15

-10+1 < 5x+1 \le 15+1

-9 < 5x+1 \le 16

This converts to the interval notation  (-9, 16]

note: a curved parenthesis means "do not include this value in the solution set"; while a square bracket has us include the value. So we exclude -9 and include 16.

3 0
3 years ago
WILL MARK BRAINLIEST + 10 POINTS!!!!<br> #2
Alenkasestr [34]

Answer:

○ -\frac{\sqrt{6} + \sqrt{2}}{4} = \frac{-\sqrt{6} - \sqrt{2}}{4}

Step-by-step explanation:

Input this trigonometric ratio into a scientific calculator, and you will end up with the above answer.

* I also included its high term, so you know which answer to choose from.

I am joyous to assist you anytime.

7 0
4 years ago
What is the exact value of cos 45° ?
nekit [7.7K]
1/√2 hope this helps :)

5 0
3 years ago
Read 2 more answers
Suppose a line has slope 4 and passes through the point (-2,5). Which other point must also be on the graph?
xxMikexx [17]
Slope of 4 means you add 4 to the y and 1 to the x so the answer is (-1,9)
5 0
3 years ago
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