All categories

3 years ago

PLEASE HELP ME WITH THIS ALGEBRA QUESTION!! THANK YOU!!

Mathematics

1 answer:

Mama L [17]3 years ago

4 0

Answer:

4a (n-1) + 5

Step-by-step explanation:

1th=6

2nd=29

3rd=121

4th=489

nth

if n=2

a2 = 4a(2-1) + 5 = 4 a(1) + 5 = 4 (6) + 5= 29

a3 =4a(3-1) + 5 = 4 a(2) + 5 = 4 (29) + 5= 121

try finding a4, check wether the answer is 489

You might be interested in

FIND THE AREA OF THE RECTANGLE!!!!!!!!

Alex Ar [27]

2-5 x 1/2 = 0.2 (Length x Width)

7 0

3 years ago

Read 2 more answers

In order to make an A on her project, Sarah needs at least 160 points. She has already turned in part of her work and has been g

antoniya [11.8K]

to get an A, she needs >=160 points and she already has 125 points

let 'x' be the number of points on the last part of her project then

125 + x >= 160

x >= 160 - 125

x >= 35

Sarah needs at least 35 points on the last part of her project.

8 0

3 years ago

Read 2 more answers

Please help! While mining, Mike found a large metal bar that contained 6 ounces of lead. Mike also determined that the bar was 4

Dima020 [189]

Answer:

15 ounces

Step-by-step explanation:

6/40 = 0.15

0.15 x 100 = 15

15 ounces

7 0

2 years ago

Statistics question; please help.

Alex_Xolod [135]

Answer:

Does this sample provide convincing evidence that the machine is working properly?

Yes.

Step-by-step explanation:

<u>Normal distribution test:</u>

$z=\frac{x- \mu }{ \frac{\sigma}{\sqrt{n}} }=\frac{ (x-\mu)\sqrt{n}}{\sigma}$

Where,

$x: \text{ sample mean}$

$\sigma: \text{ standard deviation}$

$n: \text{ sample size determination}$

$\mu: \text{ hypothesized size of the screw}$

$z=\frac{(1.476-1.5)\sqrt{200} }{0.203 }$

$z=\frac{(-0.024)10\sqrt{2} }{0.203 }$

$z \approx -1.672$

Once the significance level was not given, It is usually taken an assumption of a 5% significance level.

Taking the significance level of 5%, which means a confidence level of 95%, we have a z-value of $\pm 1.96$

Therefore, we <u>fail to reject the null</u>. It means that the hypothesis test is not statistically significant: the average length is not different from 1.5!

7 0

3 years ago

their was only 1/2 pizza 3 needed 2 share it ... how much of the original pizza woud each person get please help right away!!!!!

denpristay [2]

We are going to have to divide...
We have to put 1 as a denominator for 3 because it's a whole.
$\frac{1}{2} / \frac{3}{1}$
Cross multiply.
$1*1=1$
$3*2=6$
$= \frac{1}{6}$
Each person would get $\frac{1}{6}$ of the original pizza.

Have a nice day! :)

8 0

3 years ago