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Fudgin [204]
2 years ago
7

Reports say that the mean birth weight of babies of European heritage is 3.5 kg. Marta wants to perform a significance test to s

ee if this holds true in her nation. She takes a random sample of babies and observes a mean birth weight of xˉ=3.43 kg.Here's Marta's null hypothesis:H0 : The mean birth weight in this nation is...What is an appropriate way for Marta to finish her null hypothesis statement?a. ... not equal to 3.43 kg.b. ...equal to 3.43 kg.c. ... equal to 3.5 kg.d. ... equal to 3.5 kg.
Mathematics
1 answer:
Svet_ta [14]2 years ago
8 0

Answer:

what was the answer?

Step-by-step explanation:

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80 points! Look at pic attached. I will mark brainiest if you explain your reasoning good. Random answers will be reported.
gregori [183]

Answer: No, your friend is not correct. You cannot use a similarity transformation to turn a square into a rectangle. Here's why:

1) If you used a similarity transformation, the size and position of the shape would change, but the shape itself remains the same.

2) Squares and rectangles are NOT similar.* Referring to the first point I listed, if the shapes are not similar, then a similarity transformation cannot be used to turn one shape into another.

<em>*Similar means that the edges are proportional to one another, such as a square with sides of 4 meters vs a square with sides of 2 meters: the sides are different lengths, but the shape is the same.</em>

I hope this helps! Please feel free to comment below if you need any clarification. Have a good day, and good luck on your assignment. :)

7 0
3 years ago
How to determine if a number is prime or composite
Nookie1986 [14]
Bhjhdgf srhtnrj hjlgon54543tjkl
6 0
2 years ago
Two buses leave towns 304 miles apart at the same time and travel toward each other. One bus travels 14 mih slower than the othe
8090 [49]

Answer:

The faster bus moves at 83mi/h and the slower one moves at 69mi/h.

Step-by-step explanation:

Let's define:

R₁ = rate of bus 1, this is the faster one.

R₂ = rate of bus 2, this is the slower one.

We know that one bus travels 14mi/h slower, then:

R₂ = R₁ - 14mi/h.

Now we know that:

Distance = Speed*Time.

If we add the distances that both busses travel in 2 hours, it should be equal to the initial distance between the buses, then:

R₁*2h + R₂*2h = 304 mi

Then we have the two equations:

R₂ = R₁ - 14mi/h

R₁*2h + R₂*2h = 304 mi

The first step is to replace the first equation in the second one, to get:

R₁*2h + (R₁ - 14mi/h)*2h = 304 mi

And now we can solve this for R₁.

R₁*2h + R₁*2h - 14mi/h*2h = 304 mi

R₁*4h - 28mi = 304mi

R₁*4h = 304mi + 28mi = 332mi

R₁ = 332mi/4h = 83mi/h

The faster bus moves at 83mi/h

And we know that the slower one moves at 14mi/h slower than this, then:

R₂ = R₁ - 14mi/h = 83mi/h - 14mi/h = 69 mi/h

7 0
2 years ago
Please answer it now in two minutes
nata0808 [166]

Answer:

C = 28.9

Step-by-step explanation:

Given the right angled triangle, ∆BCD, you are required to find the measure of angle C.

Apply the trigonometric ratio formula to find m < C.

Adjacent side = 7

Hypotenuse = 8

Trigonometric ratio formula to apply would be:

cos(C) = \frac{7}{8}

cos(C) = 0.875

C = cos^{-1}(0.875)

C = 28.9

(To nearest tenth)

6 0
3 years ago
What number has the same value as 14 tens
nasty-shy [4]
The number with the same value will be 40 because 10 tens make 100 and 4 tens make 40 so it wili  be 140
8 0
3 years ago
Read 2 more answers
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