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nikklg [1K]
3 years ago
15

PLEASE HELP ASAP 30 PTS BRAINLIEST

Mathematics
2 answers:
Mashutka [201]3 years ago
8 0

Answer:

17.3 =x

Step-by-step explanation:

The Pythagorean theorem is

a^2 +b^2 = c^2 where a and b are the legs and c is the hypotenuse

3^2 +17^2 = x^2

9+289 = x^2

298 = x^2

Take the square root of each side

sqrt(298) = sqrt(x^2)

17.2626765 = x

Rounding to the nearest tenth

17.3 =x

Mandarinka [93]3 years ago
4 0

Answer:

17.3

Step-by-step explanation:

x² = 3² + 17²

x² = 9 + 289

x² = 298

x = 17.2626765

x = 17.3

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Will give 50 points!!! ASAP!!!!!!!!!!!
Nostrana [21]

Answer:

\frac{1}{4}

Step-by-step explanation:

Since there are a total of 4 colors, and there are 5 of each colors, the total marbles in the bad would be;

5 x 4 = 20

If a color is selected at random the probability would be

\frac{part}{whole}

our part is 5

our whole is 20

so the probability would be;

\frac{5}{20} or \frac{1}{4} when reduced

Hope this helps!

5 0
1 year ago
Read 2 more answers
Segment lm is the midsegment of trapezoid abcd. ab = 58, and dc = 98. what is lm?
kifflom [539]
Lm would be 78 because it is halfway between ab and dc and 98-58=40 and half of 40=20, so 58+20=78 or 98-20=78.
3 0
3 years ago
An unconfined compression test was performed to determine the average strength of concrete cylinders (in psi). It is believed th
Ronch [10]

Answer:

Explained below.

Step-by-step explanation:

(1)

The confidence level is, 91%.

Compute the value of α as follows:

\text{Confidence level}\% =(100-\alpha \%)\\\\91% = 100-\alpha \%\\\\\alpha \%=100-91\%\\\\\alpha \%=9\%\\\\\alpha =0.09

(2)

As the population standard deviation is provided, i.e. <em>σ</em> = 256 psi, the <em>z</em> value would be appropriate.

The <em>z</em> value for α = 0.09 is,

<em>z</em> = 1.69

(3)

Compute the 91% confidence interval as follows:

CI=\bar x\pm z_{\alpha/2}\cdot\frac{\sigma}{\sqrt{n}}

     =3000\pm 1.69\cdot\frac{256}{\sqrt{70}}\\\\=3000\pm 51.71\\\\=(2942.29, 3057.71)

(4)

The 91% confidence interval for population mean implies that there is a 0.91 probability that the true value of the mean is included in the interval, (2942.29, 3057.71) psi.

8 0
2 years ago
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Softa [21]
0.3445 by the way the feats changes in our heartbeats so we go on and on about the life one animals and other go divide it
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3 years ago
What inverse operation should be used to isolate the variable in the equation p − 20 = 50?
shutvik [7]

addition since inverse means opposite

3 0
3 years ago
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