All categories

3 years ago

.....pleazeeeeeeee helpppppppppp

Mathematics

2 answers:

stich3 [128]3 years ago

7 0

The answer is 25 because it is a right angle so the sum of both the angles he to add up to 90 so 90-65=25

Ne4ueva [31]3 years ago

3 0

Answer:

Step-by-step explanation:

You might be interested in

A school held a jump-roping contest. Diego jumped rope for 20 minutes.

snow_tiger [21]

Answer:

Jada 15

Lin 24

Noah 9

Diego 20

Step-by-step explanation:

Hope I helped

4 0

3 years ago

Private colleges and universities rely on money contributed by individuals and corporations for their operating expenses. Much o

emmainna [20.7K]

Answer:

The 95% confidence interval $81.852 < \mu < 280.098$

Step-by-step explanation:

From the question we are told that

The sample mean is $\= x = 180.975$

The standard deviation is $\sigma = 143.042$

The sample size is n = 8

Given that the confidence level is 95% then the level of significance is

$\alpha =( 100- 95) \%$

=> $\alpha =0.05$

Generally from the normal distribution table the critical value of $\frac{\alpha }{2}$ is

$Z_{\frac{\alpha }{2} } = 1.96$

Generally the margin of error is mathematically represented as

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

=> $E = 1.96 * \frac{ 143.042 }{\sqrt{8} }$

=> $E = 99.123$

Generally 95% confidence interval is mathematically represented as

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

=> $180.975 -99.123 < p < 180.975 +99.123$

=> $81.852 < \mu < 280.098$

5 0

3 years ago

What is the slope and y-intercept in the equation <br>y= -x-9

Pavel [41]

Answer:

slope is -1 and y-intercept is -9

Step-by-step explanation:

4 0

3 years ago

Simplify (-5-1)(6i+1)(7-i)

mixer [17]

Add like terms together
2+5i

6 0

4 years ago

URGENT PLEASE HELP Enter the value of (1/2) (-8) (4). Use the on-screen keyboard to enter the value in the box below.

o-na [289]

Answer:-16

Step-by-step explanation:

-16 bc it is what it is

5 0

3 years ago