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2 years ago

30 points pls someone answer

Mathematics

1 answer:

ipn [44]2 years ago

4 0

Answer:

x = 8

Explanation:

f(x) = g(x)

Given:

f(x) = -20x + 11

g(x) = -19x + 3

solve:

-20x + 11 = -19x + 3

-20x + 19x = 3 - 11

-x = -8

x = 8

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What is the m∠N ? Can someone help me :)

Sauron [17]

Answer:

Step-by-step explanation:

Use the sine law:

$\dfrac{MO}{\sin(\angle N)}=\dfrac{NM}{\sin(\angle O)}$

We have:

$MO=18\\\\NM=6\\\\m\angle O=17^o\to\sin17^o\approx0.2924$

Substitute:

$\dfrac{18}{\sin(\angle N)}=\dfrac{6}{0.2924}$ cross multiply

$6\sin(\angle N)=(18)(0.2924)$

$6\sin(\angle N)=5.2632$ divide both sides by 6

$\sin(\angle N)=0.8772\to m\angle N\approx61^o$

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3 years ago

A dolphin jumps from the water at a initial velocity of 16 feet per second the equation h=-8t^2 + 16t models the dolphins height

german

Answer:

The answer to the equation -8t^2+16t = -48

Step-by-step explanation:

Add ''-8t^2'' to ''16t'' and the answer you get is ''-48''

6 0

3 years ago

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HELP MEEE PLEASE !!!!!!

aleksklad [387]

Answer:

I think it's BC = EC

7 0

3 years ago

A pair of coins is tossed. What is the probability of no tails? 0 1/2 1/4

lesya [120]

0 cannot be the answer. It makes no sense because you can get a probability of getting tails when flipping a coin.

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3 years ago

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Suppose you invest $2000 at annual interest rate of 4.5 % How much money do you have in the account after five years?

nataly862011 [7]

Answer:

Please check the explanation.

Step-by-step explanation:

To find the amount we use the formula:

$A=P\cdot \left(1+\frac{r}{n}\right)^{nt}$

Here:

A = total amount

P = principal or amount of money deposited,

r = annual interest rate

n = number of times compounded per year

t = time in years

Given

P=$2000

r=4.5%

n=4

t = 5 years

Calculating compounded quarterly 

After plugging in the values

$A=2000\left(1+\frac{4.5\%\:}{4}\right)^{4\cdot \:5}$

$A=2000\left(1+\frac{0.045}{4}\right)^{4\cdot \:5}$

$A=2000\cdot \frac{4.045^{20}}{4^{20}}$

$A=\frac{125\cdot \:4.045^{20}}{2^{36}}$

$A = 2,501.50$

Thus, If you deposit $2000 into an account paying 4.5% annual interest compounded quarterly, you will have $2501.50 after five years.

Calculating compounded semi-annually

n = 2

$A=2000\left(1+\frac{4.5\%\:}{2}\right)^{2\cdot \:5}$

$A=2000\left(1+\frac{0.045}{2}\right)^{2\cdot \:5}$

$A=2000\cdot \frac{2.045^{10}}{2^{10}}$

$A = 2,498.41$

Thus, If you deposit $2000 into an account paying 4.5% annual interest compounded semi-annually, you will have $2,498.41 after five years.

5 0

3 years ago