3 years ago

What if 30% of volcanoes were in california?

Mathematics

1 answer:

EleoNora [17]3 years ago

7 0

Then 70% of volcanos wouldn't be in California.

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)A scanner scanned 63 photos in 9 minutes. If it scans photos at a constant rate, it can scan _____ photos in 21 minutes.

Cloud [144]

Answer:

147 photos

Step-by-step explanation:

63 photos -> 9 minutes

To find the number of photos scanned per minute, divide both sides by 9.

$63\div 9=7$ photos -> 1 minute

To find 21 minutes, we can do $21\times 7=147$

3 0

3 years ago

What is the equation of the line that goes through the points (- 2, 1) and (0, 4) ? (Write your answer in standard form .)

tekilochka [14]

Answer:

$3x-2y+8=0$

Step-by-step explanation:

The slope of the line that goes through the points (-2, 1) and (0, 4) is

$\frac{4-1}{0-(-2)} = \frac{3}{2}$

The slope of the line that goes through the points (x, y) and (0, 4) is

$\frac{4-y}{0-x} = \frac{4-y}{-x}$

So $\frac{3}{2}=\frac{4-y}{-x}\\-3x=2(4-y)=8-2y\\3x-2y+8=0$

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2 years ago

How to slove for extraneous solutions

Snezhnost [94]

The answer is 23
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5 0

3 years ago

Help me with both questions please please help!

Vinil7 [7]

Answer:

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Step-by-step explanation:

5 0

2 years ago

Write a rule for the linear function (-4)(16),(0)(0),(4)(-16),(8)(-32)

11Alexandr11 [23.1K]

The linear rule should look like this y=a*x+b
As the function graph goes through the (0,0) point, the equation 0=a*0+b <=> b=0 must be true.
Now we only need to find a, using one of the points given. With (-4, 16):
16=-4*a <=> a=16/-4 <=> a= -4
So the rule looks the following way:
f(x)= -4*x

5 0

3 years ago

Read 2 more answers