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Burka [1]
3 years ago
11

Perform the indicated operation and write the result in the form a + bi. i(5 - i) + 2i (i + 6) the

Mathematics
2 answers:
Nikitich [7]3 years ago
8 0

i(5 - i) + 2i (i + 6) =

distribute

5i - i^2 +2i^2 +12i

5i - (-1) +2 (-1) +12i

5i +1 -2 +12i

-1+17i

tresset_1 [31]3 years ago
7 0

Answer:

a.-3+7i

Step-by-step explanation:

just calculated should be aight

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Assume that adults have IQ scores that are normally distributed with a mean of 101.3 and a standard deviation 19.9. Find the fir
AnnyKZ [126]

Answer:

87.9

Step-by-step explanation:

Use a calculator or table to find the z-score that corresponds to 25%.

P(Z < z) = 0.25

z = -0.675

Now find the value that corresponds to that z score.

z = (x − μ) / σ

-0.675 = (x − 101.3) / 19.9

x = 87.9

4 0
3 years ago
A photograph is reduced by a scale factor of 3/8 . If the original length of the photograph was 20 inches, what is the length of
Ksju [112]
To solve this problem you must apply the proccedure shown below:

 1. You have that the following information given in the problem above: The<span> photograph is reduced by a scale factor of 3/8 and the original had a length of 20 inches, 

 2- Therefore you have:

 length=20 inches-</span>(20 inches x 3/8)<span>
 length=20 inches-7.5 inches
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8 0
3 years ago
Can a 64 ounce be poured into a 4 ounce cup
PtichkaEL [24]

yes but with 16 4 ounce cups

7 0
3 years ago
Read 2 more answers
Find the amount of interest on $1,500 invested for 20 days at 6.75%, compounded daily. $_____
LekaFEV [45]

Answer:

The required amount of interest is $5538.  

Step-by-step explanation:

Given : $1,500 invested for 20 days at 6.75%, compounded daily.

To find : The amount of interest ?

Solution :

Applying compound interest formula,

A=P(1+r)^t

Where, A is the amount

P is the principal P=$1500

r is the interest rate  r=6.75%=0.0675 compounded daily

t is the time t=20 days

Substitute the value in the formula,

A=P(1+r)^t

A=1500(1+0.0675)^{20}

A=1500(1.0675)^{20}

A=1500\times 3.69

A=\$5538

Therefore, The required amount of interest is $5538.

4 0
3 years ago
Please help I need this for my homework
Anton [14]
The answer is b.
{a}^{2}  +  {b}^{2}  =  {c}^{2}

5 0
3 years ago
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