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3 years ago

Help help please man im struggling

Mathematics

2 answers:

zzz [600]3 years ago

6 0

Answer:

z = -9.538546756+ 15.26486573i

Step-by-step explanation:

z = |z| cos theta + |z| i sin theta

We know |z| and theta

z = 18 cos 122 +18i sin 122

z = -9.538546756+ 15.26486573i

Kazeer [188]3 years ago

6 0

Answer:

- 9.539 + 15.265i

Step-by-step explanation:

express the complex number in trigonometric form, that is

$z_{1}$ = | $z_{1}$ |(cosΘ + isinΘ)

= 18(cos122° + isin122°)

= - 9.539 + 15.265i

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In the equation y = x - 5, the slope is

mezya [45]

Answer:

the slope is x or 1x

Step-by-step explanation:

i hope this helps :)

4 0

3 years ago

If we collect a large sample of blood platelet counts and if our sample includes a single outlier, how will that outlier appear

Mademuasel [1]

That outlier will appear as a single blip of data, but it will be far away from the central part of the histogram. It will not be that visible if there is a lot of data, since 1 outlying data point will just show a very low height compared to the central data near the mean/median/mode, where there will be higher frequencies and higher bars of data.

If these are the choices:
<span>A.The outlier will appear as a tall bar near one side of the distribution.
B.The outlier will appear as a bar far from all of the other bars with a height that corresponds to a frequency of 1.
C.Since a histogram shows frequencies, not individual data values, the outlier will not appear. Instead, the outlier increases the frequency for its class by 1.
D.The outlier will appear as the tallest bar near the center of the distribution.
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Then the most accurate answer will be B, since it's just a single value with a bar corresponding to a frequency of 1.

6 0

3 years ago

Help please

Aleks04 [339]

1.25s+y=t
a= fair admission
1.25s=amount spent on tickets for rides
t=total
Example
1.25*25+y=t
31.25+y=43.75
y=12.50
If you multiply the price of the ride tickets by the amount bought then subtract it from the amount spent total you get the admission price. You can use this equation for anyone who only pays for the rides and fair admission

5 0

3 years ago

Combine like terms 9y−4

alexgriva [62]

Answer: i dont this you can combine like terms for this question because none of these have the same variable or anything.

5 0

2 years ago

Read 2 more answers

In 2010 a man mailed a $400 check to another man to repay a $400 debt of his great great grandfather who died in 1849. A bank es

laiz [17]

Answer:

9.41%

Step-by-step explanation:

Data provided in the question:

Present value of the debt = $400

Interest = $454 million = $454,000,000

Time, n = 155 years

Now,

Future value = Present value of the debt + Interest

Future value = $400 + $454,000,000

Future value = $454,000,400

Also,

Using the compounding formula,

Future value = Present value × ( 1 + r )ⁿ

here,

r is the interest rate

Thus,

$454,000,400 = $400 × ( 1 + r )¹⁵⁵

( 1 + r )¹⁵⁵ = $454,000,400 ÷ $400

( 1 + r )¹⁵⁵ = 1,135,001

1 + r = 1.0941

r = 1.0941 - 1

r = 0.0941

r = 0.0941 × 100% = 9.41%

4 0

4 years ago