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faltersainse [42]
3 years ago
12

Let a = 3; x = 2c) y = ( a * x ) * x * ( x + 7 )​

Mathematics
1 answer:
Molodets [167]3 years ago
6 0

Step-by-step explanation:

please mark me as brainlest

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Annie walks 15 feet away from her house and places a mirror on the ground. She backs 4 feet away from the mirror so that she can
artcher [175]

Answer:

The house is 18.75 feet tall

Step-by-step explanation:

The triangles are similar by the AA postulate.  

We are given the length of the bottom sides of the triangles, 4 and 15 respectively.  

Thus, the ratio is 4:15

We are also given the height of Annie's eyes, which is 5 feet. The height of the side that corresponds to the house is 5, so we can set up a proportion.

\frac{4}{15}  = \frac{5}{x} \\4x = (5*15) = 75\\x = \frac{74}{4} \\x = 18.75

Thus, the house is 18.75 feet tall.

5 0
3 years ago
Please help me find the area of the trapezoid
alex41 [277]
Formulas:
A= (b1+b2) /2 X h

A= (22.2+8.52) x 9.86
A=30.72x9.86
A= 302.90
5 0
3 years ago
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Kathy slices through a circular cake. The cake has a diameter of 14 inches. The slice that Kathy made is straight and has a leng
Tanzania [10]

Answer: chord

Step-by-step explanation:

A chord is a straight line that's typically drawn from one particular edge of a circle to another.

In this case, the diameter is 14cm while the length of the line drawn is 11cm, therefore the diameter isn't a chord. It's not a radius as well as the diameter divided by 2 gives the radius which should be 7cm.

Therefore, it's a chord.

7 0
2 years ago
Will give brainliest! plz answer!!
kodGreya [7K]
A. If there are only green and yellow M & M’s in the bag, what is the smallest number of
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3 years ago
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