The hardest question i came across<br> 1+1<br> A.idk<br> B.5<br> C.2<br> D.69

IrinaK [193]

Answer: a=19

Step-by-step explanation: In order to solve this question, we must first take out the parenthesis, we can do this by taking 1/3 and multiply it by a and 5. This will give us 8=1/3a+5/3, with this we can subtract 5/3 on both sides of the equation, which will then give us, 19/3=1/3a. Last, we can divide 19/3 by 1/3 giving us 19 as our final anwser. a=19

6 0

3 years ago

Read 2 more answers

The functions f(x) = x2 – 2 and g(x) = –x2 + 5 are shown on the graph.

kolbaska11 [484]

We will need to shade the region above f(x) and the region below the function g(x)…

<h2>How to transform the graph into the solution set?</h2>

We have:

f(x) = x² - 1

g(x) = -x² + 4

Both of these are already graphed, and we want to transform it into:

y > f(x)

y ≤ g(x)

The first inequality means that we need to graph f(x) with a dashed line, because f(x) is not part of the solution, and then we shade all the region above f(x)…

For the other inequality, we use a solid line (because the points on the line are solutions) and then we shade the part below the curve…

If you want to learn more about inequalities, you can read:

brainly.com/question/18881247

5 0

2 years ago

- Given a test statistic of t= 3.018 of a left-tailed test with n= 13, use a 0.01 significance level

alina1380 [7]

Using the t-distribution, it is found that the correct option is:

0.005 < P-value < 0.01, reject the null hypothesis.

<h3>What are the hypothesis tested?</h3>

At the null hypothesis, it is tested if the mean of a given population is equal to 85, that is:

$H_0: \mu = 85$

We have a left-tailed test, hence, at the alternative hypothesis, it is tested if the mean of the population is less than 85, that is:

$H_1: \mu < 85$

<h3>What is the decision?</h3>

The test statistic is of t = -3.018.

Using a t-distribution calculator, with test statistic t = -3.018, 13 - 1 = 12 df and a significance level of 0.01, it is found that the p-value for a left-tailed test is of 0.0051.

The p-value is <u>less than 0.01</u>, hence the null hypothesis is rejected and the correct option is:

0.005 < P-value < 0.01, reject the null hypothesis.

More can be learned about the t-distribution at brainly.com/question/16313918

5 0

2 years ago

What is the value of p(24)?

Savatey [412]

Answer:

24p

Step-by-step explanation:

I'm pretty sure that this is the answer because the question was "What is the value P(24)?" which means you have to use the commutative property to reorder the terms.

Hope this helped!

4 0

3 years ago

Find the range of the following piecewise function. [27,3) (-22,3] (27,3] [-22,3)

Otrada [13]

Answer:

The answer is "(27,3]"

Step-by-step explanation:

Please find the complete question in the attached file.

$\to f(-5) = (-5)^2 + 2 = 25 +2 =27\\\\\to f(7)= 7-4 = 3\\\\answer \ is = ( 27, 3]\$