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3 years ago

Please help me fast it's for my home work and please give it in a step by step explanation

Mathematics

1 answer:

Ann [662]3 years ago

8 0

Step-by-step explanation:

This is the answer for I)

Just use Pythagorean theorem formula to the tye hypotenuse.

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Jaquanda wants to purchase a side-by-side condo and needs to borrow $150000 with a 30-year fixed loan with an APR of 8.0. The co

Marianna [84]

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6 0

3 years ago

(Small sample confidence intervals for a population mean) suppose you are taking a sampling of 15 measurements. you find that x=

Luda [366]

Answer:

The 99% confidence interval is $71.67 < \mu < 78.33$

Step-by-step explanation:

From the question we are told that

The sample size is $n = 15$

The sample mean is $\= x = 75$

The standard deviation is $s = 5$

Given that confidence is 99% then the level of significance is mathematically represented as

$\alpha = 100 - 99$

$\alpha = 1\%$

$\alpha = 0.01$

Next we obtain the critical values of $\frac{ \alpha }{2}$ from the normal distribution table

The value is

$Z_{\frac{ \alpha }{2} } = 2.58$

Generally the margin for error is mathematically represented as

$E = Z_{\frac{ \alpha }{2} } * \frac{ s}{ \sqrt{n} }$

=> $E = 2.58 * \frac{ 5}{ \sqrt{15} }$

=> $E = 3.3307$

The 99% confidence interval is mathematically represented as

$\= x -E < \mu < \= x +E$

=> $75 - 3.3307 < \mu$

=> $71.67 < \mu < 78.33$

3 0

3 years ago

If 9+9=7 then what is 8???? :P

pantera1 [17]

Answer:

9+9 isnt 7

3+4 is 7

and 4+4 is 8

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

Rico is trying to estimate 139 times 18?100 times 10=1,000

USPshnik [31]

The quickest. easiest way is to round all digits to the nearest tenth:

140 x 20
= 2,800

8 0

3 years ago

What integer $x$ satisfies $\frac{1}{4}<\frac{x}{7}<\frac{1}{3}$?

Zarrin [17]

If 1/4 < x/7 < 1/3, then

7/4 < x < 7/3

1.75 < x < 2.333…

so that x = 2.

6 0

2 years ago