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3 years ago

Please help I’ll mark you as brainliest if correct

Mathematics

1 answer:

laila [671]3 years ago

6 0

Answer:

the answer is A. because a 1/2 inch is 2 feet there is about 2 and 1/2 of an inch so if you add that, that will be 9 feet

Step-by-step explanation:

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Question 10

KonstantinChe [14]

Answer:

area of the trapezoid=1/2(7+12)×5

=47.5cm

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3 years ago

If 10a+10b=35, what is the average (arithmetic mean) of a and b?

worty [1.4K]

Answer:

1.75

Step-by-step explanation:

If a and b are two numbers, then their arithmetic mean is

$\dfrac{a+b}{2}$

Given:

$10a+10b=35$

Divide this equation by 10:

$a+b=3.5$

Now, divide it by 2:

$\dfrac{a+b}{2}=\dfrac{3.5}{2}\\ \\\dfrac{a+b}{2}=1.75$

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4 years ago

Which is the equation of the parabola?

mestny [16]

Answer:

y = -1/20(x + 3)²

Step-by-step explanation:

<u>Consider the parent function:</u>

y = x²

The graph of the function open up and the vertex is at the origin, the point (0, 0)

Now, if it opens down, it means it is a reflection of the parent function over x axis, hence it has a negative coefficient, the function becomes:

y = -x²

The vertex is shifted to the point (-3, 0). It means the function also translated left by 3 units, the function becomes:

y = -(x + 3)²

<u>Since all the options have 1/20 as a coefficient, our function is:</u>

y = -1/20(x + 3)²

This is option B

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3 years ago

3x^2yz^3-9x^3y^2z^2+12x^2y^3z^2

PolarNik [594]

3×2=692047 82837=284749×2484r133.e9274

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3 years ago

What should you multiply the top equation by so that y is eliminated when the

VLD [36.1K]

Your answer is D. 2 :)

8 0

3 years ago

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