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3 years ago

Exercise #1: The amount of money in Nicole's bank account can be represented by the function f(x) = 32.50x + 200,

Mathematics

1 answer:

kolezko [41]3 years ago

7 0

The initial amount in the account was $200 (y intercept). She adds $32.50 each day to her bank account (slope).

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Find the cube roots of 125(cos 288° + i sin 288°)

kow [346]

Let r(cos O + i sin O) be a cube root of 125(cos 288 + i sin 288)
then
r^3(cos O + i sin O)^3 = 125(cos 288 + i sin 28)

so r^3 = 125 and cos 3O + i sin 3O = cos 288 + i sin 288

so r = 5 and 3O = 288 + 360p and O = 96 + 120p

so one cube root is 5 (cos 96 + i sin 96)

Im a little rusty at this stuff Its been a long time.

Im not sure of the other 2 roots

sorry cant help you any more

3 0

3 years ago

Read 2 more answers

7x = 2 <br> what does x equal?

Ira Lisetskai [31]

Answer:

0.29

Step-by-step explanation:

7x=2

/7 /7

x=0.29

-hope it helps

8 0

2 years ago

Read 2 more answers

Suppose that documentation lists the average sales price of a single-family home in the metropolitan Dallas/Ft. Worth/Irving, Te

Julli [10]

Answer:

"0.0373" seems to be the appropriate solution.

Step-by-step explanation:

The given values are:

n₁ = 43

n₂ = 35

$\bar{x_1}=217800$

$\bar{x_2}=204700$

$\sigma_1=30300$

$\sigma_2=33800$

Now,

The test statistic will be:

⇒ $Z=\frac{\bar{x_1}-\bar{x_2}}\sqrt{\frac{\sigma_1^2}{n_1} +\frac{\sigma_2^2}{n_2} }$

On substituting the given values in the above formula, we get

⇒ $=\frac{217800-204400}{\sqrt{\frac{(30300)^2}{43} +\frac{(33800)^2}{35} } }$

⇒ $=\frac{217800-204400}{\sqrt{\frac{918090000}{43} +\frac{1142440000}{35} } }$

⇒ $=\frac{13400}{7347.93}$

⇒ $=1.7828$

then,

P-value will be:

= $P(Z>1.7828)$

= $0.0373$

8 0

2 years ago

7= 10-g ÷ (-2) <br> What Is G ?

zaharov [31]

$7=10-\frac{g}{-2}\ \ \ \ | subtract\ 10\\\\
-3=-\frac{g}{-2}\ \ \ \ | multiply\ by\ -2\\\\
6=-g\ \ \ | multiply\ by\ -1\\\\
g=-6
$

3 0

3 years ago

Four friends are collecting canned goods for charity Ron collects 10 more than 3 times as many cans as jasmine barry collects tw

FromTheMoon [43]

Jasmine + ron =alicia + barry
Ron collects 3jasmine+10 more than jasmine
barry collects 2 jamsine
alicia collects 10 barry = 20 jasmine
4jasmine+10=22 jasmine
10=18 jasmine
jasmine = 1.8
ron =15.4
alicia=32
barry=3.2

6 0

3 years ago