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3 years ago

If p=4 and q=2, evaluate the following expression:30/p+q

Mathematics

2 answers:

Gelneren [198K]3 years ago

7 0

Answer:

Step-by-step explanation:

Given

$\frac{30}{p+q}$ ← substitute p = 4 and q = 2

= $\frac{30}{4+2}$ = $\frac{30}{6}$ = 5

Svet_ta [14]3 years ago

3 0

Answer:

The answer is 9.5

Step-by-step explanation:

We are given p=4, q=2

Then: 30/p+q=30/4+2

First, we evaluate the division: 30/4=7.5

Only then we evaluate the addition: 7.5+2=9.5

Thus, the answer is 9.5

P.S. 'Brainliest' is appreciated :)

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Which graph is generated by this table of values? x –4 0 3 y 1 2 3

Nookie1986 [14]

Answer: See the graph attached.

Step-by-step explanation:

1. To solve this exercise you must plot the points given in the table of the problem, which are shown below:

(-4,1), (0,2), (3,3)

2. You must plot the first value of each ordered pair on the x-axis.

3. You must plot the second value of each ordered pair on the y-axis.

4. Therefore, when you plot them, you obtain the graph shown attached.

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3 years ago

A quality control expert at LIFE batteries wants to test their new batteries. The design engineer claims they have a variance of

emmainna [20.7K]

Answer:

$z = \frac{981.7 -997}{\frac{62}{\sqrt{73}}}= -2.108$

And we can use the normal standard distribution table or excel and with the complement ruler we got:

$P(z>-2.108) =1- P(z$

Step-by-step explanation:

We know the following info given:

$\mu = 997$ represent the true mean

$\sigma = \sqrt{3844}= 62$ represent the population deviation

$n = 73$ represent the sample size selected

Since the sample size is large enough (n>30) we can use the central limit theorem and the sample mean would have the following distribution:

$\bar X \sim N (\mu, \frac{\sigma}{\sqrt{n}})$

And for this case we want to find this probability:

$P(\bar X >981.7)$

And we can use the z score formula given by:

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

And replacing we got:

$z = \frac{981.7 -997}{\frac{62}{\sqrt{73}}}= -2.108$

And we can use the normal standard distribution table or excel and with the complement ruler we got:

$P(z>-2.108) =1- P(z$

3 0

3 years ago

How many protons are in an element with an atomic number of 8 and a mass number of 18?

Orlov [11]

A)8,atomic number also means proton number

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3 years ago

Read 2 more answers

What is the start time 30 minutes before 10:08am

Zolol [24]

9:36 am (in the morning)

8 0

2 years ago

Read 2 more answers

Can someone help me

Alexxandr [17]

Answer:

i) 0.1056

ii) 0.105

iii) 0.1

iv) 0.1056

Step-by-step explanation:

0.36, to the power of 2 (0.36×0.36) is 0.1296

0.1296-0.03×0.8=0.1056

6 0

2 years ago

If p=4 and q=2, evaluate the following expression:30/p+q​

If p=4 and q=2, evaluate the following expression:30/p+q