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Tanya [424]
3 years ago
7

A bag contains 10 red balls, 5 blue balls and 7 green balls. Find the probability of selecting at random

Mathematics
2 answers:
ahrayia [7]3 years ago
7 0
(a)15/22

Total red balls/Total balls

(b)7/22

Total green balls/Total balls
Masteriza [31]3 years ago
4 0

Answer:

Probably red ball because it has higher amount

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A cable car begins its trip by moving up a hill. As it moves up, it gains elevation at a constant rate of 50 feet/minute until i
asambeis [7]

Answer:

he cable car's elevation will be 750 feet after 15 minutes

Step-by-step explanation:

Given:

elevation, e =2,000 feet

rate, I = 50 feet/minute

The equation that models the car's elevation, e, after t minutes is e = |t

The cable car's elevation will be 750 feet after how many minutes?

since, e = It

for 2,000 feet = 50 feet/minute  * t

t = 2000/50 =40minutes

using the same constant rate, I for 750ft, T =

since, e = It

for 750 feet = 50 feet/minute  * t

t = 750/50 =15minutes

3 0
3 years ago
A 15 foot ladder is placed on the top of a wall. The distance from the bottom of the wall to the bottom of the ladder is 7 feet.
kati45 [8]

The height of the wall from the question is 13.27ft

<h3 /><h3>Pythagoras theorem </h3>

The theorem states that the square of the longest side is equal to the sum of square of other two sides.

From the given question

Hypotenuse (ladder length) = 15ft

Adjacent = 7feet

Required

Height of the wall H

According to the theorem

15² = 7² + H²

H² = 225 - 49

H² = 176

H = 13.27feet

Hence the height of the wall from the question is 13.27ft

Learn more on pythagoras theorem here; brainly.com/question/343682

#SPJ1

5 0
2 years ago
Haddie flipped a fair coin 12 times. The coin landed on heads 11 times and tails 1 time. She flips the coin a 13th time. How lik
Tpy6a [65]

Answer:

50/50. there is no outside force that decides otherwise

6 0
3 years ago
The measure of an angle is 131°. What is the measure of its supplementary angle?
sp2606 [1]

Answer:

the supplementary angle to 313 would be 49.

Step-by-step explanation:

the supplement of an angle is when tow angles add up to equal 180 degrees. therefore, if you subtract 131 from 180, you would get the answer of 49 degrees.

5 0
3 years ago
Read 2 more answers
NEED HELP ASAP ON TIMED TEST!
laiz [17]

Answer:

51.3 degrees

Step-by-step explanation:

Use Trig Ratio to solve for theta aka the angle formed between the ;adder and the ground.

So we have the hypotenuse = 24ft and the adjacent = 15ft so I am going to use the cos ratio.

cos ∅ = a/h

rearrange for theta

∅ = cos -1 ( a/h)

now sub in the information

∅ = 51.3178

now round to the nearest tenth

∅ = 51.3 degrees

write your therefore statement

therefore, the angle between the ladder and the ground is 51.3 degrees.

8 0
3 years ago
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