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Nonamiya [84]
3 years ago
11

If you have consistently been exercising during the school year but then take the

Mathematics
1 answer:
Colt1911 [192]3 years ago
6 0

Answer:

Step-by-step explanation:

B

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Using your equation from #2, how many hours did the plumber work at your home? Solve the equation from #2
jek_recluse [69]

Answer:

the answer i got was 3 which would be none of the above bc i minused 40 on both sides to get 150 then i divided 150/50 which got me 3.

Step-by-step explanation:

:) your welcome

3 0
3 years ago
Read 2 more answers
Angelica is five years less than double Jahiem’s age. Jahiem is 14 years old. How many years old is Angelica?
RoseWind [281]
Angelica is 23

Steps
Use the equation x=2j-5
Plug in jahiems age (14) for j and solve for c
3 0
3 years ago
Of those women who are diagnosed to have early-stage breast cancer, one-third eventually die of the disease. Suppose a screening
Finger [1]

Answer:

A) Alternative hypothesis; Ha: p_o > ⅔

B) Null hypothesis;

H0: p_o = ⅔

C) There is sufficient evidence to support the claim that the community screening programme was effective

D) p-value = 0

Its less than the significance value and so we will reject the null hypothesis and conclude that the community screening programme was effective

Step-by-step explanation:

A) We are told that ⅓ of those diagnosed eventually die of the disease. Thus, ⅔ is the fraction that will survive the disease.

Thus, the null hypothesis is;

H0: p_o = ⅔

We are told that a screening programme was started to increase the survival rate. Thus,the alternative hypothesis is;

Ha: p_o > ⅔

B) null hypothesis is;

H0: p_o = ⅔

C) 164 out of the 200 women selected survived the disease.

Thus sample proportion is;

p^ = 164/200

p^ = 0.82

For the z-score value, we will use the formula;

z = (p^ - p_o)/√((p_o(1 - p_o)/n)

Now, p_o = ⅔ = 0.67

Thus;

z = (0.82 - 0.67)/√((0.67(1 - 0.67)/200)

z = 4.51

From online p-value from z-score calculator, we have p-value ≈ 0

This is less than the significant level of 0.05 and therefore we will reject the null hypothesis and conclude that the community screening program was effective.

D) p-value ≈ 0

Reject the null hypothesis

4 0
2 years ago
Find the product: (-8)(-6) =
larisa86 [58]

Answer:

48, since the numbers are next to each other with no sign, they need to be multiplied, and a negative times a negative is a positive

Step-by-step explanation:

hope this helps

4 0
3 years ago
Read 2 more answers
Probability scenarios?
velikii [3]

Here are some probability scenarios.

- Flipping a coin and seeing if it is heads or tails.

- Thinking to yourself:  "Is it going to rain or hail?"

- Spinning a spinner and seeing what color it lands on.

-  Probability in winning the lottery.

-  Having 5 pairs of black shoes and one pair of yellow shoes.

 The probability of picking the yellow shoe is 1/5.

There are lots of more examples out there!

<em>Hope helps!-Aparri </em>

4 0
3 years ago
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