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oksano4ka [1.4K]
3 years ago
5

A trapezoid has an area of 150 square meters. If the bases are 14 meters and 16 meters, what us the height of the trapezoid?

Mathematics
1 answer:
goldenfox [79]3 years ago
5 0
To find the area of a trapezoid, we use the following formula:
a = \frac{1}{2} (b1 + b2) \times h
In this formula a represents the area and b1 and b2 each represent a base of the trapezoid.

So, we have got the following information
a = 150
b1 = 14
b2 = 16

Filling in the formula gives us:
150 = \frac{{1} }{2} \times (14 + 16) \times h
150 = \frac{1}{2} \times 30 \times h
150 = 15 \times h
Finally we have to divide both sides by 15.
h = 150 \div 15 = 10
Therefore, the height of the trapezoid is 10 meters.
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Read 2 more answers
A box contains 15 resistors. twelve of them are labelled 50ω and the other three are labeled 100ω. what is the probability that
Igoryamba

Answer : P(second resistor is 100ω , given that the first resistor is 50ω) is given by

\frac{1}{5}

Explanation :

Since we have given that

Total number of resistors =15

Number of resistors labelled with 50ω = 12

Number of resistors labelled with 100ω =3

Let A: Event getting resistor with 50ω

B: Event getting resistor with 100ω

Since A and B are independent events .

So,

P(A\cap B)=P(A).P(B)

Now, According to question , we can get that

P(A)= \frac{12}{15}=\frac{4}{5}\\\\P(B)=\frac{3}{15}=\frac{1}{5}

So,

P(A\cap B)=P(A).P(B)\\\\P(A\cap B)=\frac{4}{5}\times \frac{1}{5}\\\\P(A\cap B)=\frac{4}{25}

So, by using the conditional probability , which state that

P(B\mid A)=\frac{P(A\cap B)}{P(A)}

P(B\mid A)=\frac{\frac{4}{25}}{\frac{4}{5}}\\\\P(B\mid A)=\frac{5}{25}\\\\P(B\mid A)=\frac{1}{5}

So, P(second resistor is 100ω , given that the first resistor is 50ω) is given by

\frac{1}{5}


4 0
3 years ago
Please help ASAP!!!!!!
lisov135 [29]

755899 minutos después 7 días 6 minutos

4 0
3 years ago
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