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vlada-n [284]
3 years ago
7

In the expression 2x + 3, what is 2 in the given equation?. A). coefficient B). power C). product D). term

Mathematics
1 answer:
anyanavicka [17]3 years ago
5 0
A coefficient which a number in front of a variable
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In 2011, a U.S. Census report determined that 71% of college students work. A researcher thinks this percentage has changed sinc
coldgirl [10]

Answer:

Note: The full question is attached as picture below

a) Hо : p = 0.71

Ha : p ≠ 0.71

<em>p </em>= x / n

<em>p </em>= 91/110

<em>p </em>= 0.83.

1 - Pо = 1 - 0.71 = 0.29.

b) Test statistic = z

= <em>p </em>- Pо / [√Pо * (1 - Pо ) / n]

= 0.83 - 0.71 / [√(0.71 * 0.29) / 110]

= 0.12 / 0.043265

= 2.77360453

Test statistic = 2.77

c) P-value

P(z > 2.77) = 2 * [1 - P(z < 2.77)] = 2 * 0.0028

P-value = 0.0056

∝ = 0.01

P-value < ∝

Reject the null hypothesis.  There is sufficient evidence to support the researchers claim at the 1% significance level.

6 0
3 years ago
If a basketball has a volume of 12,114.7 cm3, what is the distance across of a basketball
kirza4 [7]


All we need to do is start with the volume formula. Then, input the volume and solve the equation for the radius. And double it to get the diameter.

V = (4/3)pi(r^3)
12114.7 = (4/3)pi(r^3)  Divide both sides by (4/3) and pi
2893.64 = r^3              Take the cube root of both sides
14.25 = r

So the diameter is about 28.5 cm (14.25 x 2 = 28.5)
4 0
2 years ago
hello. I hope your day was fine and have some difficulties in the three question I just took a picture of please help me ​
goblinko [34]
What do you wanna find in these questions?
3 0
2 years ago
Which pair of transformations moves quadrilateral 1 to quadrilateral 2?
malfutka [58]

Translate it 8units to the right then reflect it over the line y=-3

Why?

  • We can see the Quadrilateral is in Quadrant 3.
  • If we translate it by 8units right it come to Quadrant 4.
  • Now reflect it over line y=-3
  • we will get Quadrilateral 2
6 0
3 years ago
Read 2 more answers
Halo, kak boleh bantu tidak? yang 3. E - H<br><br>4 dan 5 semuanya Thx​
Gala2k [10]

Answer:

eng pls

Step-by-step explanation:

7 0
2 years ago
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