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3 years ago

HELP high school pre cal

Mathematics

1 answer:

kogti [31]3 years ago

6 0

Answer:

The option A) -4-3i is correct

Therefore the simplified given expression is (-1-6i)+(-3+3i)=-4-3i

Step-by-step explanation:

Given that the expression is (-1-6i)+(-3+3i)

To simplify the given expression as below :

(-1-6i)+(-3+3i)=-1-6i-3+3i

=(-1-3)+(-6i+3i) ( combining the real parts and imaginary parts separately and adding the like terms )

=-4+(-3i)

=-4-3i

(-1-6i)+(-3+3i)=-4-3i

Therefore the simplified given expression is (-1-6i)+(-3+3i)=-4-3i

Therefore the option A) -4-3i is correct

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Jessica, Chau, and Kareem sent a total of 84 text messages during the weekend. Kareem sent 4 times as many messages as Chau. Jes

swat32

Answer:

Number of messages sent by Chau = 15

Number of messages sent by Kareem = 4 * 15 = 60

Number of messages sent by Jessica = 15 - 6 = 9

Step-by-step explanation:

Let number of messages sent by Chau = c

Number of messages sent by Kareem = 4 times as Chau

= 4 * c = 4c

Number of messages sent by Jessica = 6 fewer messages than Chau

= c - 6

Total messages = 84

c + 4c + c - 6 = 84 {Combine like terms}

6c - 6 = 84 {Add 6 to both sides}

6c = 84 + 6

6c = 90 {Divide both sides by 6}

c = 90/6

c = 15

Number of messages sent by Chau = 15

Number of messages sent by Kareem = 4 * 15 = 60

Number of messages sent by Jessica = 15 - 6 = 9

3 0

3 years ago

Read 2 more answers

Simplify the expression. 4.6r + 2.8r

Keith_Richards [23]

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3 years ago

PLS HELP ASAP GIVE BRAINLIEST TO PERSON WHO ANSWER CORRECTLY

Paladinen [302]

Answer:

B.) , ratio of 20:1
C.) , There are 11 costumers per tower and 11000 costumers in total

Step-by-step explanation:

Please mark brainliest...

multiply each value of the C. by 1,000 to get the # of C.s
divide the # of C.s / T.s
this gives you C.s per T.
Convert to ratio format
there is on average 15 to 20 C.s per T.

5250/273 = 14.075
6250/325 = 19.230
7250/377 = 19.230
9250/273 = 19.230

6250 = y

377 572

2. multiply both sides by 572

3. 572 . 6250 = y

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4. divide known pair

572 x 19.230 = y

5. solve for y

6. y = 10999.56

7. divide y value by 1000

8. 10.99956

9. round to the nearest whole #

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3 years ago

Anne made 13 3/4 bags of popcorn for a movie night with some friends. Together they ate

xxTIMURxx [149]

Answer:

13 3/4

-3 1/4

First subtract the fractions so, 3/4 - 1/4 is 2/4, or 1/2. (Like 3-1)

Then subtract the whole numbers, 13-3=10.

The answer is 10 1/2.

10 1/2 bags of popcorn were left uneaten.

Step-by-step explanation:

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3 years ago

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Answer:

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Step-by-step explanation:

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