2 years ago

Help is really needed...

Mathematics

1 answer:

ANTONII [103]2 years ago

6 0

Answer:

240m^3

Step-by-step explanation:

Volume = length x width x height.

5x12x4= 240

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Help me with this thanks for anyone who helps! :D

Kobotan [32]

Answer:

x= 90-60

x=30

Step-by-step explanation:

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2 years ago

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In triangle ABC, a = 9, c = 5, and angle B = 120°. Find the measure of angle A to the nearest degree. Show your work.

slamgirl [31]

<u>Answer:</u>

Angle A = 39°

<u>Step-by-step explanation:</u>

We are given that there is a triangle ABC where a = 9, c = 5 and angle B = 120° and we are to find the measure of angle A.

But first we need to find the side b using the law of cosine:

$b^2 = a^2 + c^2- 2a*c*cos(120)$

$b^2 = 81 + 25 - 2*9*5*(-0.5)$

$b=\sqrt{151}$

Now finding angle A using law of cosine:

$cos(A) = \frac{b^2+c^2-a^2}{2b*c}$

$cos(A) = \frac{151+25-81}{2*12.29*5}$

$cos A=0.7730$

$A=39.38$

Therefore, the measure of angle A = 39°.

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2 years ago

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If a person was to buy 57 pounds of chocolate & it was 32$ a pound how much would it cost

Scilla [17]

Answer:

$1,824

Step-by-step explanation:

57*32 = 1,824.

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2 years ago

Given the two vertices and the centroids of a triangle, how many possible locations are there for the third vertex?

hoa [83]

Answer:

Step-by-step explanation:

The centroid is the average of the coordinates of the three vertices. If you know two vertices (A and B) and the centroid (Q), then the third vertex (C) is ...

C = 3Q -A -B

It has only one possible location.

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Jennifer's Flower Shop sells flowers for $1.35 each. Mary's Flower Shop sells a dozen flowers for $15.96. Who has the best deal?

I am Lyosha [343]

Answer:

Mary has the better deal

Step-by-step explanation:

Jennifer's $1.35 * 12 = $16.20

Mary's 12 flowers = $15.96

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