Pleaseee help with this question!!

Multiply. [x- (3+4i)][x-(3-4)]

hodyreva [135]

Answer:

(x−3−4)(x+1)

Step-by-step explanation:

6 0

3 years ago

What expressions are equivalent tell me all if more than 1 :)

spayn [35]

A. Is 6x+9x and 15x
B. Is 4 times 1 plus 4 times 9y and 4+36y

6 0

3 years ago

Read 2 more answers

Write a two-step equation and solve.

finlep [7]

Step-by-step explanation:

1) let number=a

six times a number=6a

Condition:

6a+4=22

2) eleven times a number=11a

Condition:

11a-5=50

3) 9 times a number=9a

Condition:

9a-7=-16

Note:if you need to ask any question please let me know.

3 0

3 years ago

Suppose a triangle has two sides that measure 7 inches and 11 inches. Which of the following could be the length of the third si

Vikki [24]

You need to know the rule or theorem for the lengths of the sides of a triangle,which is: the lengths of any two sides of a triangle must add up to more than the length of the third side.

So, let's examine each option:

A.4 inches => side A: 7, side B: 11, side C: 4 ---> NOT POSSIBLE

Justification:

7 + 4 = 11

11 = 11 => the sum of sides A and C is not greter than the side B, so it does not satisfy the rule.

B. 7 inches => side A: 7, side B: 11, side C: 7. ---> COULD BE

Justification:

7 + 7 = 14; 14 > 11
7 + 11 = 18; 18 > 7

C. 13.5 inches => side A: 7, side B: 11, side C: 13.5: ---> COULD BE

Justification:

7 + 11 = 18; 18 > 13.5
7 + 13.5 = 20.5; 20.5 > 11
11+13.5 = 24.5; 24.5 > 7

D. 18 inches => side A: 7, side B: 11, side C: 18 ---> NOT POSSIBLE

Justification:

7 + 11 = 18; 18 = 18 => it does not satisfy the rule.

E. 20 inches => side A: 7, side B: 11, side C: 20 ---> NOT POSSIBLE

Justification:

7 + 11 = 18; 18 < 20 => it does not satisfy the rule

7 0

4 years ago

A slot machine at a hotel is configured so that there is a 1/1200 probability of winning the jackpot on any individual trial. If

Evgen [1.6K]

Answer:

The probability is approximately one in a million (0.001% ).

It's a very little probability, so the manager would be really surprised.

Step-by-step explanation:

We have for this question to calculate with a binomial random variable, with n=6 and p=1/1200=0.00083 .

We have to calculate the probability of getting 2 hits in the sample of size 6.

$P(x=2)=\binom{6}{2}p^2(1-p)^4=15*(1/1200)^2*(1199/1200)^4\\\\P(x=2)=15* 0.000000694*0.996670831= 0.00001038$

The probability is approximately one in a million (0.001% ).

It's a very little probability, so the manager would be really surprised.

8 0

3 years ago