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2 years ago

Please help this is due TODAY

Mathematics

1 answer:

Umnica [9.8K]2 years ago

7 0

Answer:

a=116.5°

b=116.5°

Step-by-step explanation:

360-95-32=233

233÷2=116.5

a and c are equal, so both are 116.5

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What is the measure of angle 1?

Sonbull [250]

Answer:

angle 1 = 123°

Step-by-step explanation:

Here, angle 2 = 123° {being veritical opoosite angle}

so, angle 1 = angle 2 {being alternate angle}

so, angle 1 = 123°

4 0

3 years ago

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From a random sample of 58 businesses, it is found that the mean time the owner spends on administrative issues each week is 21.

zzz [600]

Answer: (20.86, 22.52)

Step-by-step explanation:

Formula to find the confidence interval for population mean :-

$\overline{x}\pm z^*\dfrac{\sigma}{\sqrt{n}}$

, where $\overline{x}$ = sample mean.

z*= critical z-value

n= sample size.

$\sigma$ = Population standard deviation.

By considering the given question , we have

$\overline{x}= 21.69$

$\sigma=3.23$

n= 58

Using z-table, the critical z-value for 95% confidence = z* = 1.96

Then, 95% confidence interval for the amount of time spent on administrative issues will be :

$21.69\pm (1.96)\dfrac{3.23}{\sqrt{58}}$

$=21.69\pm (1.96)\dfrac{1.7}{7.61577}$

$=21.69\pm (1.96)(0.223221)$

$\approx21.69\pm0.83$

$=(21.69-0.83,\ 21.69+0.83)=(20.86,\ 22.52)$

Hence, the 95% confidence interval for the amount of time spent on administrative issues = (20.86, 22.52)

7 0

2 years ago

Please i need help with this i dont understand it

CaHeK987 [17]

Answer:

1. No

2. Right triangle

3. No

4. Right triangle

Step-by-step explanation:

A, B = two smallest sides

C = hypotenuse, largest side

Pythagorean theorem. If A^2 + B^2 = C^2, then you have a right triangle.

6 0

2 years ago

Write the fraction as a percent.<br> 19/4

Alex777 [14]

19÷4=4.75
To make it into a percentage, multiply it by 100
4.75×100%=475%

7 0

3 years ago

Please help i give 15 points for the answer

Paraphin [41]

Answer:

2 and 9/10

Step-by-step explanation:

3 1/2- 3/5=2 9/10

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2 years ago

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