MATHEMATICS HIGH SCHOOL

Rewrite the rational expression as an equivalent rational expression so that all expressions have a common denominator. 3/5,9/10,7/15,7/21

Answers

Answer 1

Answer:

Answer:

126/210, 189/210, 98/210, 70/210

Step-by-step explanation:

find the lowest common multiple

of 5,10,15 and 21=210

42*3, 21*9, 14*7, 10*7

126/210, 189/210, 98/210, 70/210

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Through:
(-4,2) and (-3,-3)

Answers

Answer:

m=-5

Step-by-step explanation:

Find the diameter of the base of a right cylinder if the surface area is 128(pi) and the height is 12cm.

Answers

$d=2r\n A=128 \pi \n A=2 \pi r^(2) +2 \pi rh \n\n 2 \pi r^(2) +2 \pi rh = 128 \pi \n 2 r^(2) +2rh = 128\n 2 r^(2)+24r-128=0\n r^(2)+12r-64=0\n delta=400\n r_(1/2) = -16/4 \n r=4cm\n d=8cm\n$

Radius / diameter as a length cannot be negative, that's why '-16' is wrong.

10.5 in the form a/b

Answers

10.5 in the form of a/b = 105/10 = 21/2

1344 is 240% of what number

Answers

The number is 560.

What is the percentage?

The percentage is a ratio that can be expressed as a fraction of 100.

Let the required number be x.

Then, it follows that 1344 is 240% of x:

1344 = 240% of x

1344 = 240x/100

1344 = 12x/5

x = 1344×5/12

x = 560

Hence, the number is 560.

Learn more on percentages here:

brainly.com/question/14979505

#SPJ2

240% out of 1344=3225.6

Choose all statements true!A. 7 qt and 4 cups > 34 cups
B. 20 fl oz > 3 cups
C. 70 pints = 35 quarts
D. 5 gallon < 21 quarts
E. 47 pt < 6 gallons

Please help me and my brother please! <3

Answers

Answer:

C. 70 pints = 35 quarts

D. 5 gallons < 21 quarts

E. 47pt < 6 gallons

Step-by-step explanation:

There is 35 quarts in 70 pints, therefore being equal to it

There are 20 quarts in 5 gallons so 21 quarts is greater

6 gallons has 48 pints so it's more than 47 pints

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1. Solve the equation.
-5 = a/18 (This is a fraction)

Answers

-5 = a/18

multiply by 18 on each side

-5 * 18 = a/18 * 18

-90 = a

Answer: a = -90

Answer is JKismyhusbandbae:

$\mathrm{Switch\:sides}\n(a)/(18)=-5\n\mathrm{Multiply\:both\:sides\:by\:}18\n(18a)/(18)=18\left(-5\right)\nSimplify\na=-90$

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