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4 years ago

What do you need to know?

Mathematics

2 answers:

bulgar [2K]4 years ago

6 0

wym are you asking a question?

jeyben [28]4 years ago

4 0

Where is the question

You might be interested in

4. Evan took an exam that had 50 questions. He got 38 of the questions correct. What percentage did he

Natasha2012 [34]

Answer:76%

Step-by-step explanation:38 out of 50 equals 76%

5 0

3 years ago

Malia and her sister walk at a constant rate of 4 miles per hour how far can malia and her sister walk in 1.5 hours

pychu [463]

6 miles 4x1.5=6 hope this helps

3 0

3 years ago

Tim mowed lawns for 2 hours and earned $7.50 per hour. Then he washed windows for 4 hours and earned $6.30 per hour. What were T

sergij07 [2.7K]

Answer:

$40.20

Step-by-step explanation:

$7.50 per hour. Tim worked for 2 hours so you would do 2 timez 7.5 which is $15, the total he earned from mowing.

$6.30 per hour. Tim worked for 4 hours so you would do 4 times 6.3 which is $25.2, the total he earned from washing windows.

To get the total of how much he earned all together you add 15 and 25.2 and you get $40.2.

7 0

3 years ago

Several terms of a sequence {an}n=1 infinity are given. A. Find the next two terms of the sequence. B. Find a recurrence relatio

s344n2d4d5 [400]

Answer:

A) $\frac{1}{1024},\frac{1}{4096}$

B) $\left\{\begin{matrix}a(1)=1 & \\ a(n)=a(n-1)*\frac{1}{4} &\:for\:n=1,2,3,4,... \end{matrix}\right.$

C) $\\a_{n}=nq^{n-1} \:for\:n=1,2,3,4,...$

Step-by-step explanation:

1) Incomplete question. So completing the several terms: $\left \{a_{n}\right \}_{n=1}^{\infty}=\left \{ 1,\frac{1}{4},\frac{1}{16},\frac{1}{64},\frac{1}{256},... \right \}$

We can realize this a Geometric sequence, with the ratio equal to:

$q=\frac{1}{4}$

A) To find the next two terms of this sequence, simply follow multiplying the 5th term by the ratio (q):

$\frac{1}{256}*\mathbf{\frac{1}{4}}=\frac{1}{1024}\\\\\frac{1}{1024}*\mathbf{\frac{1}{4}}=\frac{1}{4096}\\\\\left \{ 1,\frac{1}{4},\frac{1}{16},\frac{1}{64},\frac{1}{256},\mathbf{\frac{1}{1024},\frac{1}{4096}}\right \}$

B) To find a recurrence a relation, is to write it a function based on the last value. So that, the function relates to the last value.

$\left\{\begin{matrix}a(1)=1 & \\ a(n)=a(n-1)*\frac{1}{4} &\:for\:n=1,2,3,4,... \end{matrix}\right.$

C) The explicit formula, is one valid for any value since we have the first one to find any term of the Geometric Sequence, therefore:

$\\a_{n}=nq^{n-1} \:for\:n=1,2,3,4,...$

6 0

3 years ago

Ms. Maria Wilson is considering running for mayor of Bear Gulch, Montana. Before completing the petitions, she decides to conduc

irina1246 [14]

Answer: 0.750

Step-by-step explanation:

Let p be the population proportion .

We are given that a sample of 400 voters reveals that 300 would support her in the November election.

Then the sample proportion for this situation will be :-

$\hat{p}=\dfrac{300}{400}=0.750$

Since the sample proportion is the best point estimate for the population proportion.

Therefore, the estimated value of the population proportion =0.750

8 0

3 years ago