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Verizon [17]
3 years ago
5

I need this done! Decent amount of points for it (:

Mathematics
2 answers:
marin [14]3 years ago
6 0

Answer:

Hope this helps!!

Step-by-step explanation:

#9(a)- 2x+7=10

#9(b)- ?

#9(c)- 2a+25

#9(d)- 30h=147

#9(e)- 4c+3t=21

#9(f)- 8c+2000=3600

I don't know about #9(c). So someone else will have to answer that one. Sorry.

Margaret [11]3 years ago
5 0

Answer:

umm its the quouto to the thing

Step-by-step explanation:

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Step-by-step explanation:

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Rachel drives at a constant speed of 70 miles per hour.
marishachu [46]

The linear function that models Rachel's distance as a function of time is:

D(x) = (70 mi/h)*x

<h3>How to find a function that models Rachel's distance as a function of time?</h3>

Remember the relation between speed and distance:

Distance = Speed*Time.

Here we know that the speed of Rachel is 70 miles per hour, then if she drives for x hours, the distance traveled will be:

D(x) = (70 mi/h)*x

So we found a linear function that models Rachel's distance as a function of time.

If you want to learn more about linear functions:

brainly.com/question/1884491

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State if the two triangles are congruent. If they are, state how you know.
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3 years ago
Please Help!! :D<br><br> Find the value of y.
rjkz [21]

Answer:

y=2\sqrt{2}

Step-by-step explanation:

The Pythagorean theorem is a theorem that can be applied to the sides of a right triangle. Please note that a right angle refers to an angle with a measure of (90) degrees. A box around an angle shows that the angle is a right angle, or has a measure of (90) degrees. The Pythagorean theorem states the following,

a^2+b^2=c^2

Where (a) and (b) are the legs of the triangle, or the side adjacent to the right angle in the right triangle. (c) is the side opposite the right angle, or the hypotenuse of the triangle. One can apply this theorem to the smallest triangle in the diagram to find (y),

a^2+b^2=c^2

Substitute,

(1)^2+(y)^2=(3)^2

Simplify,

(1)^2+(y)^2=(3)^2

1+y^2=9

Inverse operations,

1+y^2=9

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y=\sqrt{8}

Take a factor from out of the square root. Remember that a number times itself under the radical is equal to the number. This can be simply stated as the following: (\sqrt{a*a}=a),

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y=\sqrt{8}

y=\sqrt{2*2*2}

y=2\sqrt{2}

4 0
2 years ago
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