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3 years ago

Select the correct answer. Which function's domain consists of all real numbers except -2?

Mathematics

1 answer:

weqwewe [10]3 years ago

7 0

$All real numbers \ \textless \ x \ \textless \ -All real numbers , x \neq 2$

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How do you solve this?

laila [671]

A(-3;1)
b(-6;0)
c(-5;-3)
d(-2;-2)

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2 years ago

Solve the inequalities by graphing. Select the correct graph.<br>y> X<br>y<-X

Veseljchak [2.6K]

Answer:

5.3

Step-by-step explanation:

7 0

2 years ago

Clare bought a new pair of shorts for $ 13.75. This was 25% off the regular price. What was the original price? ( Round your ans

Inessa05 [86]

Answer:

18.3

Step-by-step explanation: Here i'll give you my notes for finding original price

1. make the percent into a decimal

2. subtract the decimal by 1

3. divide the number you just got and the decimal you got from the first step

7 0

1 year ago

A volleyball player sets the ball in the air, and the height of the ball after t seconds is given in feet by h= -16^2+12t+6. A t

JulsSmile [24]

h=-16²+12t+6

8=-256+12t+6

256-6+8=12t

-258=12t

t=-258/12

t=21.5

7 0

3 years ago

In a random sample of 30 people who rode a roller coaster one day, the mean wait time is 46.7 minutes with a standard deviation

Rainbow [258]

Answer: C. $(29,\ 37.8)$

Step-by-step explanation:

The confidence interval for difference of two population mean is given by :-

$\overline{x}_1-\overline{x}_2\pm z_{\alpha/2}\sqrt{\dfrac{s_1^2}{n_1}+\dfrac{s_2^2}{n_2}}$

Given : Level of significance : $1-\alpha:0.99$

Then , significance level : $\alpha: 1-0.99=0.01$

Critical value : $z_{\alpha/2}=z_{0.005}=2.576$

$n_1=30\ ;\ n_2=50\\\\\overline{x}_1=46.7\ ;\ \overline{x}_2=13.3\\\\s_1=9.2\ ;\ s_2=1.9$

$46.7-13.3\pm(2.576)\sqrt{\dfrac{9.2^2}{30}+\dfrac{1.9^2}{50}}\approx33.4\pm4.38=(29.02\ ,37.78)\approx(29,\ 37.8)$

Hence, a 99% confidence interval for the difference between the mean wait times of everyone who rode both rides $(29,\ 37.8)$

5 0

3 years ago