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4 years ago

Evaluate. 4/7+3/4 A. 3/7 B. 37/56 C. 7/11 D. 19/28

Mathematics

1 answer:

Softa [21]4 years ago

5 0

Answer:

its

1.32142857143

Step-by-step explanation:

if its not im sary

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(2a-b)^5 what is the answer to this problem

Musya8 [376]

Answer:

a+b=1

ples gimme beranlyStep-by-step explanation:

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4 years ago

Suzanne has one 10p coin one 50p coin and some 20p coins altogether she has £1.40 how many 20p coins does she have

mash [69]

Answer:

She has FOUR 20p coins altogether.

Step-by-step explanation:

1.40-0.10-0.50=0.8

0.8/0.2=4

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3 years ago

How would you find the area of this shape? ( rectangle and congruent triangle )

ale4655 [162]

Once you know the height and width, multiply them to get the area of the square. To find the perimeter of the square, add all four sides together. To find the area of a triangle, multiply together two of the sides not the hypotenuse and then multiply that figure by 1/2.

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3 years ago

Seven ping-pong balls numbered 1-7 are put in a hat. Three balls are chosen without replacement. What is the probability that al

muminat

Probability of 1st number being even : 3/7
probability of 2nd number being even : 2/6
probability of 3rd number being even : 1/5

probability of all 3 numbers being even : 3/7 * 2/6 * 1/5 = 6/210 = 1/35

5 0

3 years ago

Read 2 more answers

The region bounded by y=5/x, y=0, x=1, and x=3 is rotated about the x-axis. find the volume of the resulting solid.

brilliants [131]

Volume of Revolution = $\pi \int\limits^b_a {y^{2}} \, dx$
Volume of Revolution = $\pi \int\limits^3_1 { (\frac{5}{x})^{2}} \, dx$
= $\pi \int\limits^3_1 ({\frac{25}{x^{2}}) \, dx$
= $25\pi \int\limits^3_1 ({\frac{1}{x^{2}}) \, dx$
= $25\pi \int\limits^3_1 ({x^{-2}}) \, dx$
= $25\pi \ ^{3} [-x^{-1}] _{1} 
$
$= 25\pi\ ((-1/3) - (-1/1)) \\
= 25\pi\ (2/3) \\
= 50/3 \pi\ units^{3}$

6 0

4 years ago