All categories

2 years ago

Help me with question 2 plss

Mathematics

2 answers:

diamong [38]2 years ago

7 0

$\frac{p^{3 \cdot 4}}{q^4} \times \frac{9q^{4\cdot2}}{p^{3\cdot2}} = 
\frac{p^{12}}{q^4} \times \frac{9q^{8}}{p^{6}} =
{p^{12-6}} \times 9q^{8-4}}} = 9p^6q^4$

stepladder [879]2 years ago

4 0

I cannot do this because it wont let me look at the attachment i am sorry

You might be interested in

Given f(x) = 2*2+3 find f (-3)

san4es73 [151]

Answer:

Being as their is no variable in your equation, the answer regardless of what we put in for the function is 7.

Step-by-step explanation:

f(x) = 2*2 + 3

f(x) = 4 + 3

f(x) = 7

4 0

2 years ago

A study showed that the ratio of the number of people who get their news from social media to the number of people who their new

zhenek [66]

Answer: 270 people

Step-by-step explanation:

The ratio of the number of people who get their news from social media to the number of people who their news from other sources is 3 to 7.

This shows that the number of people who get their news from social media is 3 out of 10 i.e (3+7).

Therefore, the number of people in a town of 900 people that get their news from social media will be:

= 3/10 × 900

= 270 people.

7 0

2 years ago

Read 2 more answers

A population is estimated to have a standard deviation of 9. We want to estimate the population mean within 2, with a 99% level

cupoosta [38]

Answer:

The sample required is $n = 135$

Step-by-step explanation:

From the question we are told that

The standard deviation is $\sigma = 9$

The margin of error is $E = 2$

Given that the confidence level is 99% then the level of significance is mathematically evaluated as

$\alpha = 100-99$

$\alpha = 1 \%$

$\alpha = 0.01$

Next we will obtain the critical value $\frac{\alpha }{2}$ from the normal distribution table(reference math dot armstrong dot edu) , the value is

$Z_{\frac{\alpha }{2} } = Z_{\frac{0.05 }{2} } = 2.58$

The sample size is mathematically represented as

$n = [ \frac{Z_{\frac{\alpha }{2} } * \sigma }{E} ]^2$

substituting values

$n = [ \frac{ 2.58 * 9 }{2} ]^2$

$n = 135$

3 0

2 years ago

Find the roots of the following function: y = x2 − 7x − 30

DIA [1.3K]

Answer:

x = 3, −10

Step-by-step explanation:

The roots (zeros) are the x values where the graph intersects the x-axis. To find the roots (zeros), replace y with 0 and solve for x.

6 0

2 years ago

What is one possible value of 2x

Georgia [21]

Answer:

really good

Step-by-step explanation:

<h2>thanks for your help you with that do not have a copy of the receipt for your time to help you with the</h2>

5 0

1 year ago