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Veronika [31]
3 years ago
13

Another 2 questions

Mathematics
2 answers:
OverLord2011 [107]3 years ago
6 0

Answer:

3x+2y+ 6x

=(3+6)x + 2y

=9x + 2y

8n + 3y -8n

=(8-8)n + 3y

=0+3y

=3y

Valentin [98]3 years ago
3 0
The first answer is 9x + 2y

the second answer is 3y
You might be interested in
According to a Gallup survey conducted in July 2011, 20% of Americans favor reducing the U.S. budget deficit by using spending c
Yakvenalex [24]

Answer:

Option C is correct.

The test statistic for this question is -3.13

Step-by-step explanation:

To compute the z-test statistic, the formula is given as

z = (x - μ₀)/σₓ

x = p = sample proportion of the 500 college students sampled, that favor reducing the deficit using only spending cuts with no tax increase = (75/500) = 0.15

μ₀ = p₀ = the proportion to be compared against, that is, the proportion of Americans that favor reducing the U.S. budget deficit by using spending cuts only, with no tax increases = 20% = 0.20

σₓ = standard error of the sample proportion = √[p(1-p)/n]

p = 0.15

n = Sample size = 500

σₓ = √[0.15×0.85/500] = 0.01597

z = (0.15 - 0.20) ÷ 0.01597

z = -3.13

Hope this Helps!!!

8 0
3 years ago
What does 3 exponent -2 equal
inysia [295]
I am pretty sure your answer is going to be 243
I hope this helps, and good luck!!
4 0
3 years ago
1)Make an area model(Table) or a tree diagram to model all the possible combinations in this situation. 2)What is the theoretica
Ann [662]

Answer:

Example:

A bag contains 3 black balls and 5 white balls. Paul picks a ball at random from the bag and replaces it back in the bag. He mixes the balls in the bag and then picks another ball at random from the bag.

a) Construct a probability tree of the problem.

b) Calculate the probability that Paul picks:

i) two black balls

ii) a black ball in his second draw

Solution:

tree diagram

a) Check that the probabilities in the last column add up to 1.

b) i) To find the probability of getting two black balls, first locate the B branch and then follow the second B branch. Since these are independent events we can multiply the probability of each branch.

ii) There are two outcomes where the second ball can be black.

Either (B, B) or (W, B)

From the probability tree diagram, we get:

P(second ball black)

= P(B, B) or P(W, B)

= P(B, B) + P(W, B)

6 0
3 years ago
What is the relationship between 20,000 and 200,000
Inessa05 [86]
200,000 is ten times 20,000
4 0
3 years ago
Read 2 more answers
PLEASE HELP 99 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!111
SVETLANKA909090 [29]
B=6 mm
yup
yup
yup yup yup
5 0
3 years ago
Read 2 more answers
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