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spayn [35]
3 years ago
11

URGENT!! PLEASE HELP! RUNNING OUT OF TIME!!

Mathematics
1 answer:
loris [4]3 years ago
8 0

Answer:

A. 2x²+x-9

Step-by-step explanation:

2x²+x-9 = 2x²+1x-9

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I need help with this hurry please !!!
Tatiana [17]

Answer:

I think its C

Step-by-step explanation:

3 0
2 years ago
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Determine the probability of landing on tails at most 33 times if you flip a fair coin 80 times. Round your answer to the neares
grigory [225]

Answer:

0.0728177272

Step-by-step explanation:

Given :

Number of flips = 80

Probability of landing on tail at most 33 times ;

Probability of landing on tail on any given flip = 1 / 2 = 0.5

This a binomial probability problem:

Hence ;

P(x ≤ 33) = p(x=0) + p(x=1) +... + p(x = 33)

Using a binomial probability calculator :

P(x ≤ 33) = 0.0728177272

7 0
2 years ago
What fraction is equivalent to 1/10 with the denominator as _____/1000
Ksivusya [100]
1/10 is equal to 100/1000, as that way, both the numerator and the denominator are multiplied by 100.
This works because the number multiplying the top and bottom are equal, therefore resulting in no net change.

5 0
2 years ago
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What is the value of x?
Hoochie [10]

Answer:

Answer 7

Step-by-step explanation:

This depends on setting up a proportion

5:45 ::  3: 3 + 2x + 10

You can reduce 5 / 45

5/45 = 1/9

1:9 :: 3:3 + 2x + 10

1:9 :: 3: 2x + 13

1/9 = 3/(2x + 13)                 Cross Multiply

2x + 13 = 3*9

2x + 13 = 27                      Subtract 13

2x + 13 - 13 = 27 - 13

2x = 14                              Divide by 2

2x/2 = 14/2                        Divide

x = 7

3 0
3 years ago
Can someone please exlpain how to do this???
lana66690 [7]

Answer:

40. A c=60

41 B z= 40

Step-by-step explanation:

The sum of the angles in a triangle is 180

40.  61+59+c = 180

Combine like terms

120+c = 180

c = 180-120

c =60

41.  90+50+z = 180

140 +z = 180

z = 180-140

z = 40

8 0
3 years ago
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