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Darina [25.2K]
3 years ago
5

What is the value of x to the nearest tenth? A. 6.0 B. 13.4 C. 26.8 D. 30.0

Mathematics
1 answer:
lilavasa [31]3 years ago
8 0
Use the Pythagorean theorem:

\left(\dfrac{1}{2}x\right)^2+12^2=18^2\\\\\dfrac{1}{4}x^2+144=324\ \ \ |-144\\\\\dfrac{1}{4}x^2=180\ \ \ \ |\cdot4\\\\x^2=720\to x=\sqrt{720}\\\\\boxed{x\approx26.8}
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Answer:

035

Step-by-step explanation:

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Y:

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Using a correlation Coefficient calculator, the correlation Coefficient, r for the data = 0.127

The test statistic :

T = r² / √(1 - r²) / (n - 2)

Sample size, n = 10

Hence,

T = 0.127² / √(1 - 0.127²) / (10 - 2)

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7 0
3 years ago
There are 4 pints of green paint in a gallon bucket. The paint is made from equal amounts of yellow paint and blue paint. To cre
vovikov84 [41]

Answer:

Brandon is correct.

Step-by-step explanation:

Initially, there id 4 pints of green paint in the bucket.

As the green paint is made from equal amounts of yellow paint and blue paint, so, the initial amount of yellow and blue paint in the bucket  is 2 pint each.

Let x pints of yellow paint to be added to the bucket to make the desired shade.

Total amount of the paint in the bucket, after addition of x pints of yellow color become 4 + x pint, in which the ampunt of yellow color is 2+x pints.

As, the ampunt of yellow color is 80% of the total amount of the mixture, so

(4+x)\times 80\%=2+x

\Rightarrow (4+x)\times \frac{80}{100}=2+x

\Rightarrow 4(4+x)=5(2+x)

\Rightarrow x=6

So, 6 pints of yellow paint to be added to the bucket to make the desired shade.

Hence, Brandon is correct.

3 0
3 years ago
Please help me to answer this with solution.Please answer it correctly.​
Bess [88]

Answer:

Eco friendly furniture is furniture that is created in a manner that has minimum negative impact on the environment. This means that where wood is used, it has come from renewable sources and any chemicals used in the process do not pollute or harm the environment. i think

Step-by-step explanation:

yes

8 0
3 years ago
Which sequences of transformations confirm the congruence of shape II and shape I?
defon
The answer is -1 and 12
3 0
3 years ago
Read 2 more answers
I really need help with this question , can someone help me?
Alexxx [7]
I'm too late but here ya go anyway :)

x = 180 - (31 + 40) is the answer.
8 0
3 years ago
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