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4 years ago

Which value of x makes it true

Mathematics

1 answer:

son4ous [18]4 years ago

8 0

Answer:

i think its...

answer: B

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a gardenner is designing a new garden in the shape of a trapezoing she wants the short base to be twice the height and loger bas

taurus [48]

Answer:

Height = 5 ft

Short base = 10 ft

Long base = 14 ft

Step-by-step explanation:

Let h = height, a = short base, b = long base.

From the question,

a = 2h

b = a + 4 = 2h + 4

The area of the trapezoid is given by $\frac{1}{2}(a+b)h$ . Thus,

$60 = \frac{1}{2}(2h + 2h + 4)h$

$60 = \frac{(4h + 4)h }{2}$

$60 = \frac{4h(h + 1)}{2}$

$60 = 2h(h + 1)$

$30 = h(h + 1)$

$0 = h^2 + h - 30$

$0 = (h+6)(h-5)$

$h-5 = 0$ or $h+6 = 0$

$h= 5$ or $h = -6$

We discard the negative value of h since it is a measurement and cannot be negative.

$h= 5$

$a= 2h=2\times5=10$

$b= a+4=10+4=14$

6 0

3 years ago

Question 2 I don’t really understand it at all

Vlad1618 [11]

Answer:

the answer is C

Step-by-step explanation:

${n}^{3} = 380$

$\sqrt[3]{ {n}^{3} } = \sqrt[3]{380}$

n = 7.25

7 < 7.25 <8

7 0

3 years ago

A. x= 2 0

Elanso [62]

Answer:

Step-by-step explanation:

3 0

3 years ago

14.4 as an improper fraction

boyakko [2]

Answer:

72/5

Step-by-step explanation:

3 0

4 years ago

The average temperature on mars is -67 degrees Fahrenheit. Earths average temperature is 61 degrees Fahrenheit. How many degrees

mamaluj [8]

Answer:

The answer to your question is 128°F

Step-by-step explanation:

Data

Temperature on Mars = -67°F

The Temperature on Earth = 61°F

Process

1.- Subtract the temperature of Mars to the temperature of the Earth.

ΔT = 61 - (-67)

2.- Simplification

ΔT = 61 + 67

3.- Result

ΔT = 128°F

4.- Conclusion

The Earth is 128°F warmer than Mars.

5 0

3 years ago