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nata0808 [166]
2 years ago
13

Please just pleaseeeee help....I’m desperate....

Mathematics
1 answer:
pshichka [43]2 years ago
4 0

Answer:

option B

-5/2

Step-by-step explanation:

______________________

You might be interested in
What is the value of x?<br> please help!!
Lesechka [4]

Answer:

28°

Step-by-step explanation:

soln

(x+3)°+(2x+3)°

x°+3°+2x°+3°=90°(beign complementary angles)

3x+6=90°

3x=90°_6

3x=84

x=84/3

x=28°

4 0
3 years ago
Read 2 more answers
You travel 50 miles in 4 hours. What is your average speed of
Kisachek [45]

Answer:

12.5 mph

Step-by-step explanation:

50 miles / 4 hours=

25 miles / 2 hours=

12.5 mph

7 0
2 years ago
Need help asap, thanks!!!ヾ(⌐■_■)ノ♪
Lelu [443]

Step-by-step explanation:

the probability of making one shot is 75% or 0.75 or 3/4.

the probability to make 2 shots is then

3/4 × 3/4 = 9/16 = 0.5625

and so on.

the probability to miss 1 shot is then 25% or 0.25 or 1/4.

the probability to make at least 4 out of 5 shots is the sum of the probability to make all 5 shots plus the probability to make 4 shots.

or the probability to miss 0 plus the probability to miss 1 shot.

anyway, we can go with the positive approach. it seems to be the same complexity as the negative approach.

the probability to make all 5 shots is

(3/4)⁵ = 3⁵/4⁵ = 243 / 1024 = 0.237304688...

the probability to e.g make the first 4 shots and miss the 5th is

(3/4)⁴×1/4 = 3⁴/4⁵ = 81 / 1024 = 0.079101563...

how many possibilities do we have to make 4 out of 5 shots ?

there is no repetition, and the sequence inside the "picked" 4 does not matter, so we need combinations :

C(5,4) = 5! / (4! × (5-4)!) = 5

so, the probability to make exactly 4 out 5 shots is

81/1024 × 5 = 405/1024 = 0.395507813...

and the total probability to make at least 4 shots is

243/1024 + 405/1024 = 648/1024 = 81/128 = 0.6328125

to control,

this plus making exactly 3 plus exactly 2 plus exactly 1 plus none must be the probability 1 (as there is no other possible outcome).

making 3 :

(3/4)³×(1/4)² = 3³/4⁵ = 27/1024

C(5,3) = 5×2 = 10

270/1024

making 2 :

3²/4⁵ = 9/1024

C(5,2) = 5×2 = 10

90/1024

making 1 :

3/1024

C(5,1) = 5

15/1024

making 0 :

1/1024

in sum

(270+90+15+1)/1024 = 376/1024

plus the 648/1024 = 1024/1024 = 1

correct.

4 0
2 years ago
A movie was shown 6 times every day from November 24 through December 19. How
butalik [34]
Answer: A. 138 times

How?
During that time period there were 23 days so 23 multiplied by the amount of times played per day (6)
You get the answer 138
6 0
3 years ago
Read 2 more answers
Need help any body help please
lutik1710 [3]
For the first one (aka 7)  you would write 10² wich is the same as 10×10 and so the answer is 100

For the second one (aka 8) you would write 3×3×3×3×3×3×3×3×3 and the answer is 486 square miles

6 0
3 years ago
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