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Pachacha [2.7K]
3 years ago
7

A student says that the slope pf the line for the equation y=20-15x is 20 and the y-intercept is 15. Find and correct the error.

Worth 20 points
Mathematics
1 answer:
Alla [95]3 years ago
7 0
We have this equation for the slope is: y=mx+b which m is the slope and b is the y-intercept, so we have y=20-15x or y=-15x+20, and we already know that the slope is -15 and y-intercept is 20. As a result, the student's error is that he thinks that 20 is the slope because it is the first number. Hope it help!
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What is 36 percent of 210?
ohaa [14]

Hey there!

Let's start by finding what 1% of 210 is.

This can be done by dividing 210 by 100, since 1% is the same as 1/100 of something.

210 ÷ 100 = 2.1

To find 36%, we can multiply 2.1 by 36.

2.1 x 36 = 75.6

So, 36% of 201 is 75.6.

Hope this helps!

4 0
3 years ago
Use the picture below to solve for the missing information, given PQ = 2x + 8, QR = x + 11, and PR = 5x - 3.​
Ann [662]

Answer:

Step-by-step explanation:

I think x=-2

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1 year ago
What is -4 the square root of 12 + the square root of 75 in simplist radical form?
Fofino [41]

Answer:

<u>The simplest radical form of this mathematical expression is - 3√3</u>

Step-by-step explanation:

1. Let's write in a mathematical expression the information given:

-4 the square root of 12 + the square root of 75

-4 (√12) + √75

-4 (√4 * 3) + (√25 * 3)  (12 = 4 * 3 and 75 = 25 * 3)

-4 (2 √3) + 5 √3

-8 √3 + 5√3

- 3 √3

The result is- 3 square root of 3.

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7 0
3 years ago
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AysviL [449]

Answer:

the answer is c.768

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Hi please HELP ME I really need it
earnstyle [38]

Answer:

? = 14

Step-by-step explanation:

let us say that ? = x

7^x * 7^5^4 = 7^34

When you have a power to a power you multiply

7^x * 7^20 = 7^34

when you multiply common bases you add the power. since all the bases aer the same just look at the power

7^34-20 = 7^x

7^14 = 7^x

6 0
3 years ago
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