12m, and 8m what is the third angle of the tirangle

1 answer:

8 0

So we use pythagorean theorem.

a^2+b^2=c^2

Do you have the triangle drawn ? It matters what side we are solving for.

12m^2 + 8m^2 = c^2

c^2= 208

c= 14.42 m

I can solve for what you want, just need some information from you

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Solve using elimination 2x-y=-22 and -7x+y=67 <br> (9,4)<br> (-9,-4)<br> (-4,9)<br> (-9,4)

suter [353]

Answer: (-9,4)

Step-by-step explanation:

2x-y=-22

-7x+y=67

-5x=45

x=-9

2(-9)-y=-22

-18-y=-22

-y=-4

y=4

8 0

3 years ago

Kristen invests $5,745 in a bank. The bank pays 6.5% interest compounded monthly. How long must she leave the money in the bank

s344n2d4d5 [400]

formula is $A=P(1-\frac{r}{n})^{nt}$

where A=final amount

P=principal

r=interest rate in decimal

n=number of times per year it is compounded

t=time in years

we want to find where

A=2P

and P=5745

and r=6.5%=0.065

n=monthly=12

remember that $ln(x^a)=a(ln(x))$

also that $(a^b)^c=a^{bc}$

$2(5745)=5745(1+\frac{0.065}{12})^{12t}$ , solving for t

divide both sides by 5745 to simplify things a bit

$2=(1+\frac{0.065}{12})^{12t}$ I'd rather not simplify this because it give us a decimals and those aren't exact, if we combine, we get 12.065/12 for inside parenthases