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3 years ago

Question 1 (Essay Worth 2 points)

Mathematics

2 answers:

SashulF [63]3 years ago

8 0

Gi atay ka lisud oud ba ani oi

Naay mas dali ani tubag mo oi

tekilochka [14]3 years ago

4 0

Answer:

mu answer is A

Step-by-step explanation:

because if an point shows (0,0) shows the cost is $0 for 0 pound of dog food

hope this helps

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How do you solve 2/5 (c+8.5) =18

Orlov [11]

Solve for c by simplifying both sides of the equation, then isolating the variable.

C=36.5

4 0

3 years ago

US average math SAT scores follow a normal distribution with a mean of 505 and a standard deviation of 112. A sample of 64 enter

Hitman42 [59]

Answer:

The claim that the scores of UT students are less than the US average is wrong

Step-by-step explanation:

Given : Sample size = 64

Standard deviation = 112

Mean = 505

Average score = 477

To Find : Test the claim that the scores of UT students are less than the US average at the 0.05 level of significance.

Solution:

Sample size = 64

n > 30

So we will use z test

$H_0:\mu \geq 477\\H_a:\mu < 477$

Formula : $z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}$

$z=\frac{505-477}{\frac{112}{\sqrt{64}}}$

$z=2$

Refer the z table for p value

p value = 0.9772

α=0.05

p value > α

So, we accept the null hypothesis

Hence The claim that the scores of UT students are less than the US average is wrong

3 0

3 years ago

Select the correct answer.

Sonja [21]

I believe the answer is c

3 0

3 years ago

What is the domain of f(x) = (x + 2)2 – 1?

larisa [96]

Simplify

$\\ \tt\Rrightarrow f(x)=(x+2)^2-1$

$\\ \tt\Rrightarrow f(x)=x^2+4x+2-1$

$\\ \tt\Rrightarrow f(x)=x^2+4x+1$

The Domain is set of all real numbers

$\\ \tt\Rrightarrow Domain\in R$

4 0

2 years ago

Ill give brainiest for this question :D<br> (its not multiple choice)

Ipatiy [6.2K]

Answer:

see explanation

Step-by-step explanation:

Given

$\frac{6c-2}{2}$ + 2c + 11

= $\frac{6c}{2}$ - $\frac{2}{2}$ + 2c + 11

= 3c - 1 + 2c + 11

= 5c + 10

(b)

We have the expression

5c + 10 ← factor out 5 from each term

= 5(c + 2)

6 0

3 years ago