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3 years ago

Help with Geometry homework please.?

Mathematics

1 answer:

jolli1 [7]3 years ago

5 0

Answer:

a. 60° it is opposite the other 60° angle

b. 120° it is supplementary with the 60° angle

c. 120° it is supplementary with the 60° angle

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Identify the maximum or minimum value and the domain and range of the graph of the function y = 2(x + 2)2 - 3

klasskru [66]

I'm pretty sure the answer is B

3 0

3 years ago

The owners of an eyeglass store claim that they fill customers' orders, on average, in 60 minutes with a standard deviation of 1

melomori [17]

By applying z-score formula we got that if a reporter determines a mean order time of 63 minutes then value o Z is 1.19

<h3>What is standard deviation?</h3>

Standard deviation is a number used to tell how measurements for a group are spread out from the average (mean), or expected value

Here given that

The owners of an eyeglass store claim that they fill customers' orders, on average, in 60 minutes with a standard deviation of 15. 9 minutes. Based on a random sample of 40 orders, a reporter determines a mean order time of 63 minutes

mean=μ=60

standard deviation=σ=15.9

number of sample=n=40

$\bar{x}=63 \\$

Now we can calculate z by z-score formula as

$z=\frac{\bar{x}-\mu}{\frac{\sigma}{\sqrt{n}}} \\\\&=\frac{63-60}{\frac{15 \cdot 9}{40}} \\ \\=\frac{3}{2.5140} \\ \\=1.19\end{aligned}$

By applying z-score formula we got that if a reporter determines a mean order time of 63 minutes then value o Z is 1.19

To learn more about standard deviation visit :brainly.com/question/12402189

5 0

2 years ago

Type The missing number that makes these fractions equal: 4/?=2/8

natka813 [3]

Answer:

Step-by-step explanation:

2/8 is = to 1/4

4/16 is = to 1/4

GIVE ME BRAINLIESTTTTT

4 0

2 years ago

Solving systems of equations with substitution: y= 2x-4 y= -x+5 help please!

Furkat [3]

y= 2x-4
y= -x+5
so

2x-4 = -x+5
2x +x = 5 +4
3x = 9
x =3

y = 2x-4
y =2(3) - 4
y = 6-4
y = 2

answer: (3,2)

4 0

3 years ago

Find the value of x in the isosceles triangle shown below. Help plzzzz

zysi [14]

Answer:

x =2

Option D is correct !!!

Step-by-step explanation:

By Pythagoras theorem we can solve this

we know that:

${x}^{2} + {4}^{2} = \sqrt{20} {}^{2}$

${x}^{2} = \sqrt{20} ^{2} - 16$

${x}^{2} = 20 - 16$

$x = 2$

6 0

3 years ago