All categories

4 years ago

Help ????? Pleasseee?

Mathematics

1 answer:

Tresset [83]4 years ago

7 0

Answer:

Step-by-step explanation:

There is a right triangle formed by the slant height, h and the radius

Use Pythagoras' theorem to solve for h

With radius = 8 ft ( half the diameter ) , slant height is hypotenuse

h² = 17² - 8² = 289 - 64 = 225

Take the square root of both sides

h = $\sqrt{225}$ = 15 → C

You might be interested in

Type the equivalent fraction using the multiplier 2.<br><br> 4/5

natulia [17]

8/10 is an equivalent fraction for 4/5.

7 0

3 years ago

PLEAsE HELP[<br> simplify:<br> (3x^4y^4)(5x^4) / 20xy^2

almond37 [142]

Answer:

$\frac{3x^6y^2}{4}$

Step-by-step explanation:

$\frac{3x^6y^2}{4}$

3 0

3 years ago

Which angle is complementary to DFE? Pls answer

zaharov [31]

Answer:

<DFA

Step-by-step explanation:

When combined (<DFA and <DFE), they'll form 90 degrees which will make them complementary

6 0

3 years ago

Read 2 more answers

When obtaining a confidence interval for a population mean in the case of a finite population of size N and a sample size n whic

Elanso [62]

Answer:

95% Confidence interval for the mean

$142.8 \leq\mu\leq158.4$

Step-by-step explanation:

We have to calculate a 95% confidence interval for the mean of a finite population.

The error is multiplied by the following finite population correction factor:

$cf=\sqrt{\frac{N-n}{N-1} }$

The standard deviation can be estimated as

$\sigma=\frac{s}{\sqrt{n}} \sqrt{\frac{N-n}{N-1} } =\frac{24.4}{\sqrt{32} }* \sqrt{\frac{200-32}{200-1} }=3.963$

The 95% confidence interval has a z value of 1.96, so it becomes:

$M-z*\sigma_c\leq\mu\leq M+z*\sigma_c\\\\150.6-1.96*3.963\leq\mu\leq 150.6+1.96*3.963\\\\ 142.8 \leq\mu\leq 158.4$

5 0

4 years ago

5x +14+13x-2 i need help on these type of problems please

OleMash [197]

Answer:

18x+12

Step-by-step explanation:

5x+14+13x-2

combine Like terms:

5x+13x

14-2

18x+12

3 0

4 years ago

Read 2 more answers