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3 years ago

Can people help find the answers to this

Mathematics

1 answer:

Gwar [14]3 years ago

3 0

I think D and E. The point slope formula is y-y₁=m(x-x₁).

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2(x+11)=3x=42simplify

Vaselesa [24]

Answer:

2x+22=42

Step-by-step explanation:

2x+22-22=42-22. which is 2x=20 divide both sides with 2,therefore the answer is 10

8 0

3 years ago

Find the 15th term of the geometric sequence 2 , -8 , 32

marishachu [46]

Answer:

first term (a)= 2

second term (b) = -8

common ratio (r) = -8/2 = -4

15th term = ar^ (n-1)

= 2* (-4)^ 14 =536870912

Step-by-step explanation:

5 0

3 years ago

How can you represent real world situations using positive nubers, negative nubers, and zero?

Natasha2012 [34]

Answer:Maybe ffor the positive numbers you could use like 1,2,3,4,5,6,7,8, and 9. For the negitive number could be like -1,-2,-3,-4,-5. And zero could repersent the middle. Get it or no?

Step-by-step explanation:

6 0

3 years ago

Noah painted 3/20 of a fence in 1/2 a day how many days will it take him to paint the entire fence

Scorpion4ik [409]

Answer:

approximately 7 days

Step-by-step explanation:

20 ÷ 3 = 6.6 repeating, round up to 7 days

8 0

3 years ago

Read 2 more answers

"You measure 34 dogs' weights, and find they have a mean weight of 67 ounces. Assume the population standard deviation is 13.5 o

liraira [26]

Answer:

The 95% confidence interval for the true population mean dog weight is between 62.46 ounces and 71.54 ounces.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.95}{2} = 0.025$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.025 = 0.975$ , so $z = 1.96$

Now, find M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

$M = 1.96*\frac{13.5}{\sqrt{34}} = 4.54$

The lower end of the interval is the sample mean subtracted by M. So it is 67 - 4.54 = 62.46 ounches.

The upper end of the interval is the sample mean added to M. So it is 67 + 4.54 = 71.54 ounces.

The 95% confidence interval for the true population mean dog weight is between 62.46 ounces and 71.54 ounces.

7 0

4 years ago