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mash [69]
3 years ago
6

Could somebody please help me??

Mathematics
2 answers:
solniwko [45]3 years ago
7 0

Answer:

She didn't make a mistake

Step-by-step explanation:

aleksandrvk [35]3 years ago
5 0

Answer:

She did not make a mistake tell me if i am right pls hope I helped

Step-by-step explanation:

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Range of f(x)=-(x-5)^2+9
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Answer: (5, -9)

Step-by-step explanation:

Rewrite the equation in term of  x and y.

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3 years ago
AABC is rotated 90° clockwise to create AA'B'C'. Which of the following transformations would also map B to B'?
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Answer:

the 3rd and 5th one

Step-by-step explanation:

4 0
3 years ago
In a recent poll of 620 registered voters, 545 favored candidate Hargrove. Based on the results of the poll, which proportion co
vladimir2022 [97]
545 / 620 = x / 15000
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3 years ago
The average age at which adolescent girls reach their adult height is 16 years. Suppose you have a sample of 29 adolescent girls
kumpel [21]

Answer:

standard error = 1.63

Step-by-step explanation:

To calculate the standard error we need to know the standard deviation (σ) and the sample size (n) (see the attached formula).

To obtain the standard deviation we use the given sample variance of 77.4 years:

σ²= variance

Therefore:

σ = √77.4 = 8.8

Now we can calcuate the estimated standard error:

standard error = σ /√n = 8.8/√29 = 1.63

The standard error gives us an estimation about how far the mean of the sample is from the mean of the entire population, and in this case is 1.63.

7 0
3 years ago
During a school celebration, all the students participate in a canady hunt on the schools ground. your team consists of you, kyl
dem82 [27]
Let's call the team members: y(ou), k, ma, mi, d, s , that's 6 members.

We know that the number of candies is 18+23+20+28 (which is 89) plus whatever Simon and Doug found.

If the average per person is 22, then all people in total found 6*22=132.

We don't know how much doug and Simon found, but together they found 132-89=32+11=43,

Once we know how much Doug found, we can subtract it from 43 and we'll know.

From all the people so far, Michelle found the most, but it could be that either Doug or Simon found more: the problem is we don't have enough information now to find out.
3 0
3 years ago
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