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Novay_Z [31]
3 years ago
12

5. Which ordered-pair is a solution of the equation y = - 9x + 4

Mathematics
2 answers:
Citrus2011 [14]3 years ago
7 0
A.(10,-86) you would substitute this into the equation, which would be correct.
ipn [44]3 years ago
7 0

Answer:

A) (10, -86)

Step-by-step explanation:

Because (x, y)=(10, -86),

now plug in those values into the equation y=-9x+4.

You get -9(10)+4=-90+4=-86, which is the correct y-value.

Please mark me as Brainliest if you're satisfied with the answer.

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How can I solve this? If you can please explain in-depth, thank you.​
Elden [556K]

Step-by-step explanation:

I didn't know this off of the top of my head, and I used Google to help me. Simply searching "30 60 90 right triangle" gave me a few very helpful links. For future reference, if no one is answering here, Google may be your friend.

The (credible) site that I found tells me

"The basic 30-60-90 triangle ratio is:

Side opposite the 30° angle: x

Side opposite the 60° angle: x * √3

Side opposite the 90° angle: 2x"

The side opposite the 30 degree angle is a value called "x" according to this site. This would mean that y is x, which is confusing, so we can just say that the value of y is y (if you want to go a little more in depth, I will simply be referring to what the site refers to as "x" as "y"). To begin, the side opposite the 30 degree angle, which is 8√3, is y * √3. This means that y is 8. Then, the remaining side is 2*y, which is 16.

Please let me know if you have any further questions or concerns.

8 0
3 years ago
What is the length of segment AC?
Andrei [34K]

Answer:

10 units

Step-by-step explanation:

To find the length we can use the formula

d = sqrt( (y2-y1)^2 + (x2-x1)^2)

We have the two points (-5,5) and (3,-1)

d = sqrt( (-1-5)^2 + (3--5)^2)

d = sqrt( (-6)^2 + (3+5)^2)

d = sqrt( (-6)^2 + (8)^2)

d = sqrt( 36 + 64)

d = sqrt(100)

d = 10

4 0
3 years ago
Rob is making lemonade. He uses 8 lemons to make 4 quarts of lemonade.
ki77a [65]

Answer:

I believe that would be 2 lemons for one quart.

4 0
3 years ago
Ex 1) A population of 422, 000 increases by 12% each year. What is the population after<br> years.
SpyIntel [72]

Answer:472640

Step-by-step explanation:

Increase=112/100×422000

=472640

4 0
3 years ago
Select the correct answer from the drop-down menu.
grin007 [14]

Answer:

374

Step-by-step explanation:

11/50=0.22

number/1700=0.22

so 374/1700=0.22 hope that's a choice and helps.

7 0
3 years ago
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