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3 years ago

What is the probability of tossing two Fair coins and having exactly one land Tails side up

2 answers:

8 0

It would be 1/2 because there are 4 different possibilities of the two coins landing and exactly 2 of them have exactly only one side up thus concluding in the answer being 50%.

OlgaM077 [116]3 years ago

5 0

1/4 the probability of the 1st coin is 1/2 for landing on tails and for the second coin, the probability is 1/2 for it not to land on tails so u do 1/2* 1/2 and u get 1/4

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a group of 4 pupils can take 2 weeks to do a certain job.how long will 12 pupils take to complete the job if they work at the sa

Ksivusya [100]

Answer:

6 weeks

Step-by-step explanation:

Set up a proportion where x is the amount of time with 12 pupils:

$\frac{4}{2}$ = $\frac{12}{x}$

Cross multiply and solve for x:

4x = 24

x = 6

So, it will take 12 pupils 6 weeks to complete the job.

7 0

3 years ago

Work out the question below

Andrews [41]

Answer:

he needs 20.25 bags of sand and it would cost her 80.79

Step-by-step explanation:

150cm*90cm*15cm=202,500cm^3 this is how much sand she needs to fill it

202,500cm^3/10,000cm^3=20.25 this is how many bags he needs

3.99*20.25=80.79 this is how much it'll cost him for all 20.25 bags

6 0

2 years ago

The diameter of a circle is 13 ft. Find the circumference to the nearest tenth.

Neporo4naja [7]

Step-by-step explanation:

circumference of a circle

U = 2 x pi x r

what you know:

U = 13

rearrange and solve for r

U/(2 x pi) = r

4 0

3 years ago

1 .the base of a trapezoid are 11 meter and 14 meters.its height is 10 meters . what is the area of the trapezoid?

garik1379 [7]

Answer:11

Step-by-step explanation: Bases of trapezoid : 11 meters and 14 meters

height of trapezoid : 10 meters

Area of trapezoid = (sum of bases / 2) height

A = (11m + 14m)/2 * 10m

A = 25m / 2 * 10m

A = 12.5m * 10m

A = 125m²

8 0

3 years ago

Read 2 more answers

How do i find the vertical asymptote?

levacccp [35]

Answer:

find the value of x that makes the denominator zero: x = 7

Step-by-step explanation:

A vertical asymptote shows up where the denominator is zero. As the denominator gets closer to zero, the function value gets larger without bound (unless there is a numerator factor that cancels the one in the denominator).

To find the value of x at the vertical asymptote, solve the equation ...

denominator = 0

x - 7 = 0

x = 7 . . . . . . . add 7 to both sides

7 0

3 years ago