There are 100 gumdrops 73 are large 39 of them are red and 19 are large red you choose 1 what is the probability it is red and large

Answers

Answer 1

Answer: the probability is 19 of 100

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What is 9×9 please help me

Answers

9x9 is 81. It is easy because 9x9=9+9+9+9+9+9+9+9+9. As you can see, that is 9 added 9 times.

A survey indicated that 3 out of 5 doctors use brand X aspirin. If 2000 doctors were surveyed, how many used brand X?

Answers

If 2000 doctors were surveyed and 3/5 doctors used brand X, then 3/5*2000=6000/5=1200 doctors used brand X aspirin.

3/5 use brand x
3/5 of 2000
3/5 times 2000
6000/5
1200 doctorse use brand x

Find the value of x that makes this a true statement (1/27)^x=3

Answers

Answer:

x = -1/3

Step-by-step explanation:

Given

(1/27)^x=3

Solving for x

(1/27)^x=3
(1/3)^3x = 3
3^-3x = 3^1
-3x = 1
x = -1/3

A triangle has sides of length 4, 7, and x. Which of the following could be the value of x ? Indicate all such values. A. 2.9 B. 4.5 C. 6.25 D. 7 E.12

Answers

Answer:

B, C , D

Step-by-step explanation:

given 2 sides of a triangle then the third side x is in the interval

difference of 2 sides < x < sum of 2 sides , that is

7 - 4 < x < 7 + 4

3 < x < 11

the only sides in this interval are

B 4.5 , C 6.25 and D 7

Find dy/dx
2x+3y=sinx

Answers

$2x+3y=sinx\n\n3y=sinx-2x\ \ \ \ /:3\n\ny=(1)/(3)(sinx-2x)\n\n(\delta y)/(\delta x)=\left[(1)/(3)(sinx-2x)\right]'=(1)/(3)\left[(sinx)'-(2x)'\right]=(1)/(3)(cosx-2)$

What is the probability of flipping a fair coin and having 4 consecutive heads?A. 1/8

B. 1/16

C. 1/2

D. 1/6

Answers

Let X be the event of getting head on flip of a fair coin. As the coin is fair the probability of getting head or tail is same which is 1/2.

Now probability of getting 4 consecutive heads

P(4 consecutive heads) = P(head on first flip) * P(head on second flip) * P(head on third flip) * P(head on fourth flip)

= (1/2) * (1/2) * (1/2) * (1/2)

= 1/16

The probability of getting head on four consecutive flips is B. 1/16

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