All Questions ⁺⁰237722 Questions

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lost

Consider two events such that P(A) = 3/5 , P(B) = 4/7 , and P(A ∩ B) = 12/35. Are events A and B independent events?

A Yes, they are independent because P(A) ⋅ P(B) = P(A ∩ B)
B No, they are dependent because P(A) ⋅ P(B) = read more ..

qualitystreet ●●

hay24 Apr 12, 2018

+1

1103

1

+165

probility help

Two cards are drawn without replacement from a standard deck of 52 cards. What is the probability that both cards are aces? Are these events independent?

A 4/663; no, they are dependent events
B 2/13; yes, they are independent read more ..

hay24 Apr 12, 2018

0

1156

1

+165

helpp asap! pleaseee

Complete the two-way frequency table below, which shows the distribution of blood types for students in their first year at a local college.

read more ..

hay24 Apr 12, 2018

0

1923

2

+613

Help ?

What is the ordered pair of integers $(x,y)$ for which $12x + 21y = 15$ and $21x + 12y = 51$?

gueesstt Apr 12, 2018

+1

1450

3

+613

Help please (Algebra)

Three consecutive positive odd integers $a$, $b$ and $c$ satisfy $b^2 - a^2 = 344$ and $c^2 - b^2 > 0$. What is the value of $c^2 - b^2$?

Melody ●●●

gueesstt Apr 12, 2018

0

1115

1

Algebra Review Problem

The circle centered at (2, -1) and with radius 4 intersects the circle centered at (2, 5) and with radius sqrt10 at two points A and B. Find (AB)^2

Guest Apr 12, 2018

+2

1081

2

+221

what

A circle has a radius of 6 in.
What is the exact length of an arc formed by a central angle measuring 45°?
Enter your answer in the box. Express your answer using π .
in.

quilly Apr 12, 2018

+2

843

1

+4623

average speed

During a road trip, Richard drove his car at 80mph for 1 hour, and
then at 60mph for 1 1/2 hours. What was the average speed for the
entire journey?

tertre Apr 12, 2018

+1

2212

1

+63

Cylinders

A cylinder-shaped log 78 in. long measures 37.68 in. around.

What is the volume of the log?
Enter your answer as a decimal in the box. Use 3.14 for π.

summertastic1011 Apr 12, 2018

+2

1168

1

+221

What is the overlap of Team 1 and Team 2?

What is the overlap of Team 1 and Team 2?
high
medium
low read more ..

quilly Apr 12, 2018

+2

1317

3

+483

Tricky Question

I'm thinking of a number
then I multiply it by 3
then I add 4
then divide the answer by 4 read more ..

DarkCalculis Apr 12, 2018

0

1

3276

17

+63

Geometry On Earth

A pilot is flying a plane 4.5 mi above the earth’s surface.
From the pilot’s viewpoint, what is the distance to the horizon?

Enter your answer as a decimal in the box. Round only your final answer to the nearest tenth. read more ..

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summertastic1011 Apr 12, 2018

+2

2444

2

+4623

help fast!

There is a committee composed of eight women and two men. When they meet, they sit in a row---the women in indistinguishable rocking chairs and the men on indistinguishable stools. How many distinct ways are there for me to arrange the ten chairs and stools read more ..

tertre Apr 12, 2018

+1

1174

1

+223

pyramids

thank you in read more ..

lynx7 Apr 12, 2018

+1

1374

4

+9

need help, dont really know what i'm doing (3 questions)

1) http://prntscr.com/j4d3qi

2)
What is the length of each side of a square that has the same area as a rectangle that is 14 mm long and 16 mm wide? Round to the nearest whole number. read more ..

yurane Apr 12, 2018

0

953

2

+309

Need more help

A science museum has a spherical model of the earth with a diameter of 6.5 m. What is the volume of the model? Use 3.14 for and round your answer to the nearest whole number. Show your work

oscar.a1551 Apr 12, 2018

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767

2

+309

Please help

oscar.a1551 Apr 12, 2018

0

837

1

+9

need help fast pls

What is the length of the side of the square that has the same area as a rectangle that has a length of 27 mm and a width of 15 mm? Round to the nearest tenth, if needed.
A.405 mm
B.80.5 mm
C.42 mm read more ..

yurane Apr 12, 2018

+1

2124

1

+166

Help on Geometry.

The area of one lateral face of a right pyramid with an equilateral triangular base is 75 square meters. If the slant height is 30 meters, what is the length of the side of its base, in meters?

Creeperhissboom Apr 12, 2018

0

784

2

Cylinder

The fornula V=2(3.14)r^2 h is used to find the volume of a cylinder. Solve this formula for r^2 and h.

Guest Apr 12, 2018

0

1958

3

@CPhill @Anyone Help me Plzzz

1. A community park is shaped like a trapezoid with a height of 30 yd, a top base of 25 yd, and a bottom base of 33 yd. The park has a circular fountain whose radius is 4 yd.
What is the area of the park without the fountain? do not read more ..

Guest Apr 12, 2018

0

913

1

+40

index laws

Please an someone explain how to get to the answer? thanks

125^-4/3

MathsMia Apr 12, 2018

0

852

2

Car

A car depreciates(lost its value) at a rate of 30% per year. How much will a $20,000 car be worth in 5 years?

Guest Apr 12, 2018

+1

678

1

Exponential growth

It the equation y=.5(3)^x what is the base? Does it represent and exponential growth or decay?

Guest Apr 12, 2018

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