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ohaa [14]
3 years ago
14

Simplify sqrt(144/49) a.1249 b.144/7 c.49/12 d.12/7

Mathematics
1 answer:
olga55 [171]3 years ago
3 0
\sqrt{\frac{144}{49}}=\frac{\sqrt{144}}{\sqrt{49}}=\frac{\sqrt{12^2}}{\sqrt{7^2}}=\frac{12}{7}

The answer is D.
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If y=4 when x=12, find y when x=-24
goldfiish [28.3K]

The value of y is -8 if the x  -24 and y varies directly with x, and If y = 4 when x = 12.

<h3>What is a proportional relationship?</h3>

It is defined as the relationship between two variables when the first variable increases, the second variable also increases according to the constant factor.

The question is incomplete.

The complete question is:

If y varies directly with x, and If y = 4 when x = 12, how do you find y when x = -24?

y ∝ x  (given)

y = kx

k is the constant of proportionality.

4 = 12k  (y = 4, and x = 12)

k = 1/3

y = x/3

Plug x = -24

y = -24/3

y = -8

Thus, the value of y is -8 if the x  -24 and y varies directly with x, and If y = 4 when x = 12.

Learn more about the proportional here:

brainly.com/question/14263719

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3 0
1 year ago
Ken normally leaves work at 5:00 pm, but he is leaving 20 minutes late today. He decides to make up time by taking the toll road
kobusy [5.1K]

Answer:

The correct answer is: y=\frac{1}{3} x + 20

Step-by-step explanation:

As stated in the question that x represents the number of minutes his <em>normal</em> commute takes. Here the keyword is normal; in the <em>normal</em> commute, Ken takes side streets instead of the toll road.

However, in this scenario, we have to come up with the equation that takes Ken's commute via <em>toll road</em>.

Ken can travel 3 times faster by taking the toll road (Given), which can be represented in the mathematical terms in terms of x as follows:

x_{toll\_road}=\frac{1}{3}x

<em>Without considering Ken getting late, </em>the equation would become the following:

y=\frac{1}{3} x --- (A)

<em>As Ken is leaving late</em>, we have to incorporate that time as well by <em>adding</em> it in the aforementioned equation (A).

In this case, it's 20 minutes; therefore, the equation (A) will become:

y=\frac{1}{3} x+20

Hence, the correct answer is y=\frac{1}{3} x + 20.

4 0
3 years ago
I need help with this
Bad White [126]

Answer:

BC = 15.01

Step-by-step explanation:

Tan θ = Opposite / Adjacent

tan 65 = BC / 7

BC = tan 65 × 7

BC = 2.145 × 7

BC = 15.01

8 0
3 years ago
What are the coordinates of point h?​
xz_007 [3.2K]
-1,3 that’s easy u should definitely pay attention in class
7 0
3 years ago
Read 2 more answers
Micaela answered 158 questions correctly on her multiple choice math final that had a total of 200 problems. what percentage of
solmaris [256]

Answer:

79%

Step-by-step explanation:

fraction = 158/200

Denominator has to be over 100 to be able to be converted to percent

158/200 = 79/100

79/100 = 79%

3 0
3 years ago
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