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Mkey [24]
3 years ago
7

What are the coordinates of Point A? A) (1, 2) B) (-1, 2) C) (2, 1) D) (1, -2)

Mathematics
1 answer:
Andreas93 [3]3 years ago
3 0

Answer:

(1,2)

Step-by-step explanation:

i am right good lucky

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HELP ME PLS I NEED THIS NOW
Lyrx [107]

r = radius

Arc length = 2(3.14)r

7.9 cm = r

Plug our values in

Arc length = 2(3.14)(7.9 cm)

Arc length = 49.6 cm

4 0
3 years ago
X/8 -5 <-2 how do I solve this to make it true
sdas [7]
First you would add 5 to both sides
X/8=3
Then multiply both sides by 8
X=24
7 0
3 years ago
In a study of cell phone usage and brain hemispheric​ dominance, an Internet survey was​ e-mailed to 6977subjects randomly selec
kirza4 [7]

Answer:

Given :An Internet survey was​ e-mailed to 6977 subjects randomly selected from an online group involved with ears. There were 1337 surveys returned.

To Find : Use a 0.01 significance level to test the claim that the return rate is less than​ 20%.

Solution:

n = 6977

x = 1337

We will use one sample proportion test

\widehat{p}=\frac{x}{n}

\widehat{p}=\frac{1334}{6977}

\widehat{p}=0.1911

We are given that the claim is the return rate is less than​ 20%.

H_0:p=0.2\\H_a:p

Formula of test statistic = \frac{\widehat{p}-p}{\sqrt{\frac{p(1-p)}{n}}}

                                       = \frac{0.1911-0.2}{\sqrt{\frac{0.2(1-0.2)}{6977}}}

                                       = −1.858

Refer the z table

P(z<-1.85)=0.0332

Significance level = 0.01=α

Since p value > α

So, we accept the null hypothesis .

So,the claim that the return rate is less than​ 20% is false.

7 0
2 years ago
??????????????????????
Leviafan [203]
√(x + 9) - 4 = 1
√(x + 9) - 4 (+4) = 1 (+4)
√(x + 9)(²) = 5(²)
x + 9(-9) = 25(-9)
x = 16

hope this helps

6 0
3 years ago
A bacteria population is growing exponentially with a growth factor of 1/6 each hour. By what growth factor does the population
Nadusha1986 [10]

Answer:

b. √(1/6)

Step-by-step explanation:

--------------------------

6 0
3 years ago
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