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Papessa [141]
3 years ago
5

Multiply. 9i (5-2i)=

Mathematics
1 answer:
Vilka [71]3 years ago
6 0

Answer:

The answer is 45i + 18

since i *i=-1

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Event E is defined as the occurrence of one or more of two mutually exclusive events, E1 and E2-. How can you find the probabili
katen-ka-za [31]
If events E1 and E2 are mutually exclusive, it means that it is impossible for them to happen together. The probability of the occurrence of one or more of these events is the sum of their individual probabilities. The answer for this item would be,
                               P(E) = P(E1) + P(E2) + ...
7 0
3 years ago
Samson opened a bank account with 1.25% simple interest. The total amount of interest Samson will earn after 20 years is $812.50
IRINA_888 [86]
<h2>$650</h2>

Step-by-step explanation:

       The principal amount recieves a simple interest every year. The simple interest rate is given as 1.25\%.

       It is given that the total amount after 20  years is $812.50

       Total=Principal+Interest\textrm{ = }P+P\times i\times T

Here P is the principal amount, i is the interest rate, T is the time period.

       812.50=P+P\times (1.25\times \frac{1}{100})\times 20yr=P\times 1.25\\P=650\$

∴ Samson had $650 when he opened the account.

7 0
3 years ago
The height of a right square pyramid is multiplied by 10, but the area of the base is unchanged. By what factor is the volume of
pshichka [43]

Answer:

  b 10¹

Step-by-step explanation:

Consider the volume formula:

  V = 1/3Bh . . . . B is the base area and h is the height

Replacing h by 10h gives ...

  V' = 1/3B(10h) = 10(1/3Bh) = 10V

The volume is multiplied by 10 = 10¹.

5 0
2 years ago
2 1/2 ton = how many pounds are there<br> (1 ton=2000 oz)
Serhud [2]

Answer:

The answer is 5000

5 0
2 years ago
Read 2 more answers
Consider the equation (x−4)(x+3)=0.
Jlenok [28]

Answer:

(1)       x  (x+ 3) - 4 (x +3) = 0

(2)        x = 4                 and       x = -3

Step-by-step explanation:

given data

equation

(x−4)(x+3)=0

solution

given equation  (x−4)(x+3) = 0

equation as a compound statement is

x  (x+ 3) - 4 (x +3) = 0

and

two solutions to the equation are

so x  (x+ 3) - 4 (x +3) = 0

x- 4 = 0           and        x + 3   = 0

x = 4                 and       x = -3

6 0
3 years ago
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