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STatiana [176]
3 years ago
15

Sierra found that 15 meters is equivalent to 49.2 feet. Which of the following is an equivalent ratio?

Mathematics
2 answers:
lesya692 [45]3 years ago
8 0

Answer:

 Option C - 7 to 22.96  

Step-by-step explanation:

Given :  Sierra found that 15 meters is equivalent to 49.2 feet.

To find : Which of the following is an equivalent ratio?

Solution :

Sierra found that 15 meters is equivalent to 49.2 feet.

So, The ratio of the given situation is

\frac{15}{49.2}=0.3048

Now, We check one by one

A) 3 to 8.84

\frac{3}{8.84}=0.3393

B) 5 to 18.22

\frac{5}{18.22}=0.2744

C) 7 to 22.96

\frac{7}{22.96}=0.3048

D) 9 to 25.32

\frac{9}{25.32}=0.3554

Therefore, The correct option which is equivalent is Option C.

So, An equivalent ratio is 7 to 22.96.

Reika [66]3 years ago
4 0
Your answer for which is another equivalent ratio would be C. 7 to 22.96, because if you directly convert 7 meters to feet, you get an answer that is roughly 22.96. The others are false. 
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wel

<em>Correct expression: </em>(x^2-16)(x^2+49)=0

Answer:

x =  4

x = -4

x = 7i or 7 \sqrt{-1}

x = -7i or (-7) \sqrt{-1}

Step-by-step explanation:

(x^2-16)(x^2+49)=0

We do factorization of x^2 - 16

(x^2-16) = (x+4)(x-4)

(x+4)(x-4)(x^2+49) = 0

We require that any term in the multiplication to be zero to fulfil the requirement

so:

if x + 4 = 0 then (x+4)(x-4)(x^2+49) = 0

x = -4

if x - 4 = 0 then (x+4)(x-4)(x^2+49) = 0

x = 4

if (x^2+49) = 0 then (x+4)(x-4)(x^2+49) = 0

x^2 = -49

we have two roots:

If your course has already worked with complex number and the root of -1 then:

7i and -7i are solution as well

because 7i will be: 7^2 \sqrt{-1} ^2= 49 (-1) = -49\\

and the same reasoning for -7i: (-7)^2 \sqrt{-1} ^2= 49 (-1) = -49

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3 years ago
What is the lowest whole number for hypotenuse c when using the formula <img src="https://tex.z-dn.net/?f=%5Csqrt%7Ba%5E2%2Bb%5E
nata0808 [166]

9514 1404 393

Answer:

  0

Step-by-step explanation:

If a=b, you are asking for a whole number c such that ...

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If 'a' is a whole number, the only whole numbers that satisfy this equation are ...

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