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Natalka [10]
3 years ago
11

PLEASE ANSWER ASAP I WILL MARK BRAINLY

Mathematics
2 answers:
AURORKA [14]3 years ago
8 0

Answer:

first and third

Step-by-step explanation:

Emma used the product instead of the quotient and forgot the parentheses in x-4.5

bogdanovich [222]3 years ago
4 0

Answer:

its gonna be the first one aswell as the third

Step-by-step explanation:

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An experiment was conducted to test the effect of a new cholesterol medicine. Fifteen people were treated with medicine X and 15
gtnhenbr [62]

Considering the hypothesis tested and the p-value of the test, the correct option is given by:

There is sufficient evidence that there is a difference in mean cholesterol level when using medicine X and medicine Y.

<h3>What are the hypothesis tested?</h3>

At the null hypothesis, it is tested if there is no difference between the cholesterol levels, that is:

H₀:Hₓ-H

At the alternative hypothesis it is tested if there is a difference, hence:

H₀:Hₓ-H≠0

The p-value is of 0.003 < 0.01, hence we reject the null hypothesis and conclude that there has was a difference, hence the correct option is given by:

There is sufficient evidence that there is a difference in mean cholesterol level when using medicine X and medicine Y.

More can be learned about hypothesis tests at brainly.com/question/26454209

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6 0
1 year ago
Which form of a line is easiest to find a point and the slope? slope intercept form standard form Ax+By=C point slope form
IrinaVladis [17]

Answer:

pp fatr

Step-by-step explanation:

nonononon

8 0
3 years ago
Read 2 more answers
I need help some plz answer give out point!
mina [271]

Answer:

Kiwis because there are 12 and cost less then nectarienes

Step-by-step explanation:

hope this helps pls give me brainliest

8 0
3 years ago
438 divided by 7 find 2 numbers the quotient is between
ElenaW [278]
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3 years ago
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A small business makes cookies and sells them at the farmer's market. The fixed monthly cost for use of a Health Department–appr
DENIUS [597]

Answer:

Cost function:

C(x)=790+2.88x

Revenue function

R(x)=6x

Profit function

P(x)=3.12x-790

Dozens needed for a specific profit P

x=\dfrac{P-790}{3.12}

If 150 dozen cookies are sold the profit is negative, so the business is loosing $322.

Step-by-step explanation:

We can list the costs as:

- Fixed monthly cost, $790/month.

- Variable costs, $0.24/cookie, which are (12*0.24) = $2.88 a dozen.

Then, we can write the cost function C(x) as:

C(x)=790+2.88x

being C(x): the monthly cost and x: the number of dozens produced per month.

The revenue can be calculated as the price ($6 a dozen) multiplied by the number of dozens x:

R(x)=6x

The profit can be calculated substracting the total cost C(x) from the revenue R(x).

P(x)=R(x)-C(x)\\\\P(x)=(6x)-(790+2.88x)=(6-2.88)x-790\\\\P(x)=3.12x-790

The number of cookies (in dozens) that must be produced and sold for a monthly profit can be calculated from the previous equation for P(x).

For a monthly profit P, the number of dozens that need to be sold are:

P=3.12x-790\\\\P+790=3.12x\\\\\\x=\dfrac{P-790}{3.12}

If 150 dozen cookies are sold, the profit made is:

P(150)=3.12(150)-790=468-790=-322

The profit is negative, so the business is loosing $322.

6 0
3 years ago
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