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3 years ago

Help is really needed...

Mathematics

1 answer:

ANTONII [103]3 years ago

6 0

Answer:

240m^3

Step-by-step explanation:

Volume = length x width x height.

5x12x4= 240

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Find the measurements of the numbered angles in each kite.

Maurinko [17]

Answer:

∠1 = 90°

∠2 = 26°

Step-by-step explanation:

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2 years ago

In the figure xy is the bisects wxz. if wxy= (2x+5) and yxz= (3x-25) find wxy

Ulleksa [173]

Answer:

Look down on explanation

Step-by-step explanation:

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2 years ago

If the circumference of the circle is 37.68 units, what is the area? (Use 3.14 for pi .)

cricket20 [7]

Answer:

Area of the circle = $113.04\;units^2$

Step-by-step explanation:

Circumference = $37.68\;units$

Circumference of the circle = $2\times \pi \times r$

As,

$\pi =\dfrac{22}{7}=3.14$

$37.68=2\times \pi \times r\\\\37.68=2\times 3.14 \times r\\\\37.68=6.28\times r\\\\r=\dfrac{37.68}{6.28} \\\\r=6\;units$

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3 years ago

Suppose heights of seasonal pine saplings are normally distributed and have a known population standard deviation of 17 millimet

Mumz [18]

Answer:

$296.693\leq x\leq 319.307$

Step-by-step explanation:

The confidence interval for the population mean x can be calculated as:

$x'-z_{\alpha /2}\frac{s}{\sqrt{n} } \leq x\leq x'+z_{\alpha /2}\frac{s}{\sqrt{n} }$

Where x' is the sample mean, s is the population standard deviation, n is the sample size and $z_{\alpha /2}$ is the z-score that let a proportion of $\alpha /2$ on the right tail.