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nirvana33 [79]
3 years ago
5

What is the coefficient of the term 6/7 xy? A- 6xy. B-1/7. C-6. D--6/7

Mathematics
1 answer:
bearhunter [10]3 years ago
4 0
D is the correct answer
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Which of the following digits might prime numbers greater than 10 have in the ones place? Select all that apply.
Anna007 [38]

Answer:

2,4

Step-by-step explanation:

They are the only two prime numbers

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3 years ago
How many cubes with side lengths of
liq [111]

The number of 1/3 cm-cubes that would fill the rectangular prism is approximately 20 cubes.

<h3>What is the Volume of a Cube?</h3>

Volume = a³, where a is the side length.

<h3>What is the Volume of a Rectangular Prism?</h3>

Volume = lwh

Given the following:

  • a = ⅓ cm
  • l = 4/2 cm = 1/2 cm
  • w = 2/2 cm = 1 cm
  • h = 3/2 cm

Volume of the rectangular prism = (1/2)(1)(3/2)

Volume of the rectangular prism = (1/2)(1)(3/2) = 0.75 cm³

Volume of the cube = (⅓)³ = 0.037 cm³

Number of cubes that would fill the prism = 0.75/0.037 ≈ 20 cubes.

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6 0
2 years ago
Solve for y: 2x + 4y = 6
riadik2000 [5.3K]

Answer:

y equals 3/2 - 1/2 x.......

8 0
3 years ago
Maria bought 3.5 pounds of chicken at the store. The chicken was $2.50 a pound. How much did Maria spend on the chicken.
IceJOKER [234]
2.50+2.50+2.50+ half of 2.50 which is 1.25 = 7.50+1.25=8.75 i think
4 0
3 years ago
Read 2 more answers
News article reports that "Americans have differing views on two potentially inconvenient and invasive practices that airports c
OverLord2011 [107]

Answer:

1) p1=0.83

2) p2=0.81

3) Option B

4) p=0.82

5) s=0.03

6) z=0.67

7) P=0.50

8) Do not reject H0

Step-by-step explanation:

1) The proportion of Republicans who think the full-body scans should be applied in airports is equal to the ratio between the republicans that think it should over the total Republicans in the poll:

p=X/n=258/311=0.83

2) The proportion of Democrats who think the full-body scans should be applied in airports is equal to:

p=X/n=294/363=0.81

3) As we want to know if there is a difference in the proportions calculated, not if one is higher or lower than the other, the correct option is B:

H_0:p_1-p_2=0\\\\H_a:p_1-p_2\neq0

4) The pooled estimate of a proportion is the average of both proportions:

\bar{p}=\frac{p_1+p_2}{2}= \frac{0.83+0.81}{2}=0.82

5) The standard error can be calculated as:

s=\sqrt{\frac{\bar{p}(1-\bar{p})}{n_1} +\frac{\bar{p}(1-\bar{p})}{n_2}} \\\\s=\sqrt{\frac{0.82*0.18}{311} +\frac{0.82*0.18}{363}} \\\\s=\sqrt{0.00047+0.00041} =\sqrt{0.00088}=0.03

6) The z-statistic can be calculated as:

z=\frac{p_1-p_2}{s}=\frac{0.83-0.81}{0.03}=\frac{0.02}{0.03}=0.67

7) The P-value for z=0.67 is P=0.50 (from the standard normal distribution table).

2P(Z>|z|)=0.50286

8) If the significance level is 0.01, the P-value is bigger than the significance level. The effect is not significanct. The null hypothesis is not rejected.

There is not enough evidence to say that both proportions are different.

A. Do not reject H0

8 0
3 years ago
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