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3 years ago

Not a question but I just wanted to let you know that I hope you find the answer you're looking for! <3

Mathematics

1 answer:

exis [7]3 years ago

4 0

Answer:

That's very nice of you! Thank you! :D Same goes to you as-well. <3

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Select the values for p, q, and r that will make the following equation true.

gregori [183]

Answer:

P= 3

Q= -14

R= -5

Step-by-step explanation:

Just solve the equation on the right side, you'll get:

=3x^2 -15x +x -5

=3x^2 -14x -5

Now compare it to the equation on the left side,

The coefficient of x^2 on the left is "p", on the right that we just solved is 3.

Same for "q" which is the coefficient on the left, on the right it's -14.

And for "r" it's -5 from the equation on the right.

5 0

4 years ago

John makes 35% of his free throw shots sue makes 40% of her free throw shot What is the possibility that John And sue both miss

Mandarinka [93]

Answer:

The possibility that John And sue both miss their shots = 0.39

Step-by-step explanation:

John makes 35% of his free throw shots = 0.35

The probability of John missing his shot = 0.65

Sue makes 40% of her free throw shot = 0.4

The probability of Sue missing his shot = 0.6

The possibility that John And sue both miss their shots = 0.65 (0.6)

= 0.39

3 0

4 years ago

The brand manager for a brand toothpaste must plan a campaign designed to increase brand recognition. He wants to first determin

bulgar [2K]

We need to find out how many adults must the brand manager survey in order to be 90% confident that his estimate is within five percentage points of the true population percentage.

From the given data we know that our confidence level is 90%. From Standard Normal Table we know that the critical level at 90% confidence level is 1.645. In other words, $Z_{Critical}=1.645$ .

We also know that E=5% or E=0.05

Also, since, $\hat{p}$ is not given, we will assume that $\hat{p}$ =0.5. This is because, the formula that we use will have $\hat{p}(1-\hat{p})$ in the expression and that will be maximum only when $\hat{p}$ =0.5. (For any other value of $\hat{p}$ , we will get a value less than 0.25. For example if, $\hat{p}$ is 0.4, then $1-\hat{p}=0.6$ and thus, $\hat{p}(1-\hat{p})=0.24$ .).

We will now use the formula

$n=(\frac{Z_{Critical}}{E})^2\hat{p}(1-\hat{p})$

We will now substitute all the data that we have and we will get

$n=(\frac{1.645}{0.05})^2\times0.5(1-0.5)$

$n=(32.9)^2\times0.25$

$n=270.6025$

which can approximated to n=271.

So, the brand manager needs a sample size of 271

3 0

3 years ago

I phone company offers to monthly plan plan a cost $21 plus an additional $0.17 each minute of calls play B $26 in additional 0.

sertanlavr [38]

Answer:

100 minutes

Step-by-step explanation:

Let x = # of minutes

Company A: y = 21 + .17x

Company B: y = 26 + .12x

Set the equations = to each other.

21 + .17x = 26 + .12x

.17x = 5 + .12x

.05x = 5

x = 100

7 0

3 years ago

The table shows ordered pairs for a polynomial function, f. What is the degree of f?

Kazeer [188]

Answer:

5th degree

Step-by-step explanation:

To solve this problem/table, you have to find the differences in the f(x) side of the table until the differences between the numbers are the same, and then you have your degree. Look at the image attached for more sense

4 0

3 years ago