All categories

2 years ago

Pls help me I’m failing lolz:/

Mathematics

2 answers:

Marta_Voda [28]2 years ago

8 0

Answer:

6= 4k/9

Step-by-step explanation:

RLLY HOPE THIS HELPS QUICK ANSWER TRYING Q.8

Ede4ka [16]2 years ago

5 0

Answer:

k = -6

p = 1

Step-by-step explanation:

You can start by distributing:

8k - 6 = 6k + 18 + 6k

Next, you can combine like terms on the right side:

8k - 6 = 12k + 18

Now, you can subtract 8k from both sides to combine the terms with k:

-6 = 4k + 18

And subtract 18 from both sides to isolate the k-term:

-24 = 4k

Lastly, divide by 4 to get k.

k = -6

You can start by distributing -8:

-8 - 32p + 7p = -25 - 8p

Then combine the like terms in the left side:

-25p - 8 = -25 - 8p

Next, add 25p to both sides to combine the p-terms:

- 8 = -25 + 17p

And add 25 to isolate p:

17 = 17p

Divide by 17 to get the answer:

p = 1

You might be interested in

Need help pls<br>thank you in advance

ira [324]

Answer:

<u />

$\textsf{Mean}\:\overline{X}=\sf \dfrac{\textsf{sum of all the data values}}{\textsf{total number of data values}}$

$\implies \sf Mean\:(Nilo)=\dfrac{5+6+14+15}{4}=\dfrac{40}{4}=10$

$\implies \sf Mean\:(Lisa)=\dfrac{8+9+11+12}{4}=\dfrac{40}{4}=10$

<h3><u>Standard Deviation</u></h3>

$\displaystyle \textsf{Standard Deviation }s=\sqrt{\dfrac{\sum X^2-\dfrac{(\sum X)^2}{n}}{n-1}}$

$\begin{aligned}\displaystyle \textsf{Standard Deviation (Nilo)} & =\sqrt{\dfrac{(5^2+6^2+14^2+15^2)-\dfrac{(5+6+14+15)^2}{4}}{4-1}}\\\\& = \sqrt{\dfrac{482-\dfrac{40^2}{4}}{3}}\\\\& = \sqrt{\dfrac{82}{3}}\\\\& = 5.23\end{aligned}$

$\begin{aligned}\displaystyle \textsf{Standard Deviation (Lisa)} & =\sqrt{\dfrac{(8^2+9^2+11^2+12^2)-\dfrac{(8+9+11+12)^2}{4}}{4-1}}\\\\& = \sqrt{\dfrac{410-\dfrac{40^2}{4}}{3}}\\\\& = \sqrt{\dfrac{10}{3}}\\\\& = 1.83\end{aligned}$

<h3><u>Summary</u></h3>

Nilo has a mean score of 10 and a standard deviation of 5.23.

Lisa has a mean score of 10 and a standard deviation of 1.83.

The <u>mean</u> scores are the <u>same</u>.

Nilo's standard deviation is higher than Lisa's. Therefore, Nilo's test scores are more <u>spread out</u> that Lisa's, which means Lisa's test scores are more <u>consistent</u>.

5 0

1 year ago

Please help me with this question I would really appreciate it!!!

shepuryov [24]

Answer:

0, 1.32

Step-by-step explanation:

16cos(t)*sin(t)=4sin(t)

cos(t)=1/4 or sin(t)=0

t=1.32 or 0

8 0

2 years ago