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3 years ago

HELP!!!!!!!! I’ll mark as brainliest

Mathematics

1 answer:

Goshia [24]3 years ago

3 0

Answer:

It's an icosoles triangle. Both sides of 11.4 are the same

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in the next several games , the pitcher threw a total of 384 pitches and used a fastball 240 times. What decimal should juanita

umka21 [38]

Divide the number of fast balls by the total number of pitches:

240 / 384 = 0.625

7 0

3 years ago

A junk box in your room contains fourteen old batteries, seven of which are totally dead. You start picking batteries one at a

MrMuchimi

Answer:

A junk box in your room contains fourteen old batteries, seven of which are totally dead.

So, number of good batteries = $14-7=7$

a) The first two you choose are both good.

There is a 7/14 chance that we will pick a good battery.

Now there are 13 batteries left and out of that there are only 6 good ones remaining, so this becomes 6/13.

So, combined probability is = $\frac{7}{14}\times \frac{6}{13}$

= 0.23

b) At least one of the first three works.

$\frac{7}{14} \times \frac{6}{13} \times \frac{5}{12} =0.096$

And at least one is good battery, we get : $1-0.096=0.904$

c) The first four you pick all work.

There is a probability of 7/14 for the first one to work, 6/13 for the second, 5/12 for the third and 4/11 when the fourth is good, combined we get by multiplying all:

$\frac{7}{14}\times \frac{6}{13}\times \frac{5}{12}\times \frac{4}{11}=0.0344$

d) You have to pick five batteries to find one that works.

This condition means that we pick 4 bad batteries and 1 good battery.

The probability of picking 4 bad batteries is -

$\frac{7}{14}\times \frac{6}{13}\times \frac{5}{12}\times \frac{4}{11}=0.0344$

Since there are 7 good batteries remaining in 10 batteries so we will multiply 7/10 in 0.0344 to know the fifth one that finally works.

This becomes = $0.0344\times0.7=0.024$

5 0

3 years ago

give two examples that show how using parentheses can change the order in which operations are performed in an expression.

erica [24]

Parenthesis indicate which part of the equation is to be done first, see PEMDAS. For example, 3(5-2)-4=5, but 3*5-(2-4)=17

5 0

3 years ago

Read 2 more answers

Spencer had a sack filled with 65 9/10 pounds of cement. He removed some of the cement from the sack and put it into three bucke

sesenic [268]

Answer:

No the statement isnt reasonable

Step-by-step explanation:

5 0

3 years ago

For every 140 feet that jelly rides on her bicycle the wheels turn 20 times.about how many times do the wheels turn in 5 miles

Alinara [238K]

Answer:

188.57

Step-by-step explanation:

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3 years ago