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3 years ago

Which quadratic equation fits the data in the table? (PICTURE OF TABLE ATTACHED)

Mathematics

1 answer:

Paha777 [63]3 years ago

5 0

The correct quadratic equation for that set of points is:
$y=x^2+7x+1$

To check it, simply put first and last pair of points and assure the equality:
$-11=(-3)^2+7*(-3)+1$
$-11=9-21+1$
$-11=-11$

$79=6^2+7*6+1$
$79=36+42+1$
$79=79$

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Un11Mid

zaharov [31]

Hello!

You draw a table or write this out

If you pick vanilla you can get 4 different fruits

That is 4 different yogurts

If you pick chocolate you can choose 4 different fruits

Same for strawberry

So there are 12 different combinations

The answer is 12

Hope this helps!

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3 years ago

M<br> Give one reason why banks charge people banking fees.

stepan [7]

Answer:

banks change people fees to make a profit off of them other wise they would be giving away free money.

Step-by-step explanation:

hope this helps and what you were asking for.

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2 years ago

Help! does anyone know the answer to this

exis [7]

Answer:

not really what unit test or topic is that ?

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2 years ago

Cheyenne is making a recipe that uses 5 cups of beans and 2 cups of carrots. Which combination below uses the same ratio of bean

maksim [4K]

Answer:

10 cups of beans to 4 cups of carrots

Step-by-step explanation:

4 0

2 years ago

A dairy scientist is testing a new feed additive. She chooses 13 cows at random from a large population of cows. She randomly as

mina [271]

Answer:

Step-by-step explanation:

Given that a dairy scientist is testing a new feed additive. She chooses 13 cows at random from a large population of cows. She randomly assigns nold = 8 to get the old diet, and nnew = 5 to get the new diet including the additive.

From the data given we get the following

N Mean StDev SE Mean

Sample 1 8 43 5.1824 1.832

Sample 2 5 73 21.0832 9.429

df = 11

Std dev for difference = 13.3689

a) Yes the two are independent. The two sets of cows randomly chosen are definitely independent. Paired means equal number should be there and homogeneous conditions should be maintained.

b) Enclosed

c) Comparison of two means is the test recommended here. Because independent samples are used.\

d) Test statistic= -3.1233

(because of unequal variances we use that method)

95% confidence interval = ( -56.6676 , -3.3324 )

p value <0.05 our alpha

So reject null hypothesis.

The two means are statistically significantly different.

3 0

2 years ago