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postnew [5]
3 years ago
5

Subtract 10x^2-10x+210x 2 −10x+2 from -8x^2+7x-7−8x 2 +7x−7.

Mathematics
2 answers:
Alex_Xolod [135]3 years ago
7 0

Answer:

simplify = 220x^2+2f−6x−14

factor = 2(110x^2+f−3x−7)

Colt1911 [192]3 years ago
6 0
The answer would have to be

2(118x^2 - 17x + 8)
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A bag contains 6 red apples and 5 yellow apples. 3 apples are selected at random. Find the probability of selecting 1 red apple
tester [92]

Answer:  The required probability of selecting 1 red apple and 2 yellow apples is 36.36%.

Step-by-step explanation:  We are given that a bag contains 6 red apples and 5 yellow apples out of which 3 apples are selected at random.

We are to find the probability of selecting 1 red apple and 2 yellow apples.

Let S denote the sample space for selecting 3 apples from the bag and let A denote the event of selecting 1 red apple and 2 yellow apples.

Then, we have

n(S)=^{6+5}C_3=^{11}C_3=\dfrac{11!}{3!(11-3)!}=\dfrac{11\times10\times9\times8!}{3\times2\times1\times8!}=165,\\\\\\n(A)\\\\\\=^6C_1\times^5C_2\\\\\\=\dfrac{6!}{1!(6-1)!}\times\dfrac{5!}{2!(5-2)!}\\\\\\=\dfrac{6\times5!}{1\times5!}\times\dfrac{5\times4\times3!}{2\times1\times3!}\\\\\\=6\times5\times2\\\\=60.

Therefore, the probability of event A is given by

P(A)=\dfrac{n(A)}{n(S)}=\dfrac{60}{165}=\dfrac{4}{11}\times100\%=36.36\%.

Thus, the required probability of selecting 1 red apple and 2 yellow apples is 36.36%.

4 0
3 years ago
When adding the numbers 4+9+7+6+3 you can make one group of 10.True or False
Keith_Richards [23]

Answer:

false

Step-by-step explanation:

6 0
3 years ago
PLEASE HELP. ITS A MINI-QUIZ / HOMEWORK AND ITS TRIANGLES.
polet [3.4K]

Answer:

76 degrees

180-38-38 is 104

180-104 is 76 since it's a straight line which equals to 180 degrees

3 0
3 years ago
Read 2 more answers
What is the solution for -3(6x+5)-2(1-17x)=3(5+5x)
Novosadov [1.4K]

-3(6x+5)-2(1-17x)=3(5+5x)

Mutiply the first bracket by -3

(-3)(6x)= -18x

(-3)(5)= -15

Mutiply the second bracket by -2

(-2)(1)= -2

(-2)(-17x)= 34x

Mutiply the third bracket by 3

(3)(5)= 15

(3)(5x)= 15x

-18x-15-2+34x= 15+15x

-18x+34x-15-2= 15+15x

16x-17= 15+15x

move 15 to the other side

sign changes from +15 to -15

16x-17-15= 15-15+15x

16x-32= 15x

move -32 to the other side

sign changes from -32 to +32

16x-32+32=15x+32

16x= 15x+32

move 15x to the other side

sign changes from +15x to -15x

16x-15x=15x-15x+32

x= 32

Answer: x= 32

3 0
3 years ago
Hey can anyone help me on number B please?
NNADVOKAT [17]

Answer:60

Step-by-step explanation:all sides of the triangle have to be 180 degrees

5 0
3 years ago
Read 2 more answers
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