3 years ago

What are the solutions of the quadratic equation p^2+3p-28=40

Mathematics

2 answers:

vivado [14]3 years ago

3 0

Answer:

the answer is =-3± $\sqrt{281}$ /2

Step-by-step explanation:

fgiga [73]3 years ago

3 0

Answer:

$\bold{p_1\approx6.88\ ,\qquad p_2\approx-9.88}$

Step-by-step explanation:

$p^2+3p-28=40\\\\p^2+3p-68=0\\\\a=1\,,\ b=3\,,\ c=-68\\\\\\p=\dfrac{-3\pm\sqrt{3^2-4\cdot1\cdot(-68)}}{2\cdot1}=\dfrac{-3\pm\sqrt{281}}{2}\\\\p_1\approx6.88\ ,\qquad p_2\approx-9.88$

You might be interested in

At a canning facility, a technician is testing a machine that is supposed to deliver 250 milliliters of product. The technician

Serhud [2]

Answer:

The value of the test statistic is $t = 1.97$

Step-by-step explanation:

The null hypothesis is:

$H_{0} = 250$

The alternate hypotesis is:

$H_{1} \neq 250$

Our test statistic is:

$t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

In which X is the sample mean, $\mu$ is the null hypothesis value, $\sigma$ is the standard deviation and n is the size of the sample.

In this problem:

$X = 251.6, \mu = 250, \sigma = 5.4, n = 44$

$t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

$t = \frac{251.6 - 250}{\frac{5.4}{\sqrt{44}}}$

$t = 1.97$

The value of the test statistic is $t = 1.97$

4 0

3 years ago

Ariel wants to find out the most popular theme for spirit week at school. She cannot decide between two methods.

fredd [130]

Option 2 as you get a wider range of student

8 0

3 years ago

Read 2 more answers

What is the solution to 5(m - 2) – 10 = 6+2(1 - m)?<br> Enter your answer in the box.<br> m =

topjm [15]

Answer:

m = 4

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Any help is appreciated

8_murik_8 [283]

Answer:

It can't be C or D. I think it could be A.

7 0

3 years ago

Read 2 more answers

Pls help with part a b and c

saul85 [17]

Answer:

Yeah

Step-by-step explanation:

4 0

3 years ago