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Crank
2 years ago
7

Expand and simplify (x+3)(x+5)

Mathematics
1 answer:
CaHeK987 [17]2 years ago
4 0
Answer is ^2+8x+15 and this is how you do it

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Please do question 5 im giving out brainlyist or something like that :)
jonny [76]

I would say none

because each one equals to 24 students, when it says there are 24 students in each are class. so you would need to do 24 * 5 to get the amount of students.

5 0
3 years ago
Read 2 more answers
The triplets, nick, Brian, and dan, exit their preschool classroom every day in a random order. Create an organized list to show
AfilCa [17]

The set of all possibilities is called sample space and is denoted by S.

So, S = {NBD, NDB, BDN, BND, DBN, DNB} and n(S) = 8

and we need to find the probability of NBD

E = {NBD} and n(E) = 1

The probability of an even is defined by p(E) = \frac{n(E)}{n(S)}

Hence,  p(E) = \frac{1}{8}

4 0
3 years ago
If P(x) = 0.35, find the complement
katovenus [111]
Hello : 
P(x) + P(x') =1   ...( x' is the <span>complement of x)
0.3 +</span> P(x') =1
 P(x') = 1 - 0.3 = 0.7
4 0
3 years ago
I also need help on this one smh
AysviL [449]

Answer:

C. 176.6 Square feet (I think)

Step-by-step explanation:

I tried many different ways and got three of the answers above but I think this is the right one.

The equation to find area of a circular cone base: A= \pi r^2

  1. We are given the diameter (15 Feet) but we need to find the radius. So we use the diameter to radius formula: r = \frac{d}{2}
  2. Plug in numbers: r=\frac{15}{2} ≈ 7.5
  3. Use the Area formula now that you have radius: A=\pi 7.5^2
  4. Solve and get = a = 176.71458676
  5. Looking at the options the closest one to our answer (off by one-tenth) is C.

Sorry if you get this wrong. I tried lol.

7 0
2 years ago
PLEASE HELP!!!!!!!!! Solve the system using elimination method.
NeX [460]

Answer:

The answer is (6,12)

107x= 642

x=6

7•6 +2y=66

y= 12

8 0
3 years ago
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