Ask question

Ask question

All categories

2 years ago

15

Solve each equation by taking square roots 9v^2=25

1 answer:

lisov135 [29]2 years ago

3 0

<span>9v^2=25
v^2 = 25/9
v^2 = (5/3)^2
v = + 5/3 and v = -5/3

hope it helps</span>

You might be interested in

Can I get help with this?

mr_godi [17]

Answer:

13.48

Step-by-step explanation:

you have to use cah in sohcahtoa

15cos(26)=13.48 to the nearest 10th

8 0

3 years ago

Read 2 more answers

in a AP the first term is 8,nth term is 33 and sum to first n terms is 123.Find n and common difference

allsm [11]

I believe there is no such AP...

Recursively, this sequence is supposed to be given by

$\begin{cases}a_1=8\\a_k=a_{k-1}+d&\text{for }k>1\end{cases}$

so that

$a_k=a_{k-1}+d=a_{k-2}+2d=\cdots=a_1+(k-1)d$

$a_n=a_1+(n-1)d$

$33=8+(n-1)d$

$21=(n-1)d$

$n$ has to be an integer, which means there are 4 possible cases.

Case 1: $n-1=1$ and $d=21$ . But

$\displaystyle\sum_{k=1}^2(8+21(k-1))=37\neq123$

Case 2: $n-1=21$ and $d=1$ . But

$\displaystyle\sum_{k=1}^{22}(8+1(k-1))=407\neq123$

Case 3: $n-1=3$ and $d=7$ . But

$\displaystyle\sum_{k=1}^4(8+7(k-1))=74\neq123$

Case 4: $n-1=7$ and $d=3$ . But

$\displaystyle\sum_{k=1}^8(8+3(k-1))=148\neq123$

8 0

3 years ago

ILL GIVW YOU BRAINLIST !!! HAVE TO GET IT RIGHT !!!! SHOW WORK

serg [7]

Answer:

2

Step-by-step explanation:

so subsitute the letters so rhe equation would look like

my- 2x

3×6-2×8

18-2×8

18-16

2

8 0

3 years ago

Read 2 more answers

The quotient of 2 and 9

Nat2105 [25]

0.222222222222222222

7 0

3 years ago

Find the value of x from this figure

Leno4ka [110]

X = 33

The angles in a triangle must add up to 180 degrees

4 0

3 years ago

Read 2 more answers