3 years ago

Please help with this question

Mathematics

1 answer:

aleksandr82 [10.1K]3 years ago

5 0

Answer:

D) -9/4

Step-by-step explanation:

please refer to the picture I sent

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Slope = -8, passing through (2,5)

Marrrta [24]

Y - y₁ = m(x - x₁)
y - 5 = -8(x - 2)
y - 5 = -8(x) + 8(2)
y - 5 = -8x + 16
<u> + 5 + 5</u>
y = -8x + 21

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3 years ago

Antonia likes calculating the sum of the digits that she sees on her digital clock (think of a microwave clock). For example, if

slega [8]

Answer:

The largest sum she can get on a 12-hour digital clock is 17.

Step-by-step explanation:

The largest time found in a 12-hour digital clock is 12 hours and 59 minutes. If you add 12:59/ 1+2+5+9 it equals to 17. Hope this helps.

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3 years ago

Please help ASAP!!!!!

belka [17]

I think the answer is the one in the bottom right.

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3 years ago

A copy machine makes 24 copies per minute. How long does it take to make 90 copies?

quester [9]

that would be 3 minutes and 45 seconds (:

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3 years ago

9. If f(x) = 5x-4 and f(2a) =156 , then what is the value of a?

solmaris [256]

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

$f(x) = 5x - 4$

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

$f(2a) = 5(2a) - 4$

$f(2a) = 10a - 4$

$156 = 10a - 4$

$10a - 4 = 156$

Add sides 4

$10a - 4 + 4 = 156 + 4$

$10a = 160$

Divide sides by 10

$\frac{10a}{10} = \frac{160}{10} \\$

$a = 16$

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

7 0

3 years ago