Help me, I don't understand this problem

Mathematics

1 answer:

Crank2 years ago

5 0

Read some notes on reflection. If it asks to reflect it on the x-axis youre going to reflect it either on the bottom or top plane. If it asks to reflect on y-axis youre going to reflect it on either the left or right plane.

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a closed circular water tank in a subdivision is made up of concreate aluminum. its outer diameter is 8.4 m and its height is 12

m_a_m_a [10]

Answer:

122.7792 sq. m

Step-by-step explanation:

diameter= 8.4 m

therefore, radius = r = 4.2 m.......( as radius is 1/2 of diameter)

height = h= 12 m

only the exterior is to painted so the total surface area of the cylinder is taken,

total surface area of cylinder = 2π r( h+r)

=2* 3.14* 4.2*(12+4.2)

=122.7792 sq. m

5 0

2 years ago

Rewrite the fractions with their LCD.

masya89 [10]

Well the best answer for LCD is $\frac{2}{5x+15y}$ is 5(x+3y) and the best answer for LCD is $\frac{1}{2x+6y}$ is 2(x+3y)

I hope this helps!

7 0

2 years ago

How long does a car traveling at 70 mph take to travel 88 miles, in hours

dybincka [34]

So,

Obviously, the car will travel 70 miles in one hour. So after one hour, the car will have traveled 70 miles. That leaves 18 miles.

The time it will take for the car to go another 18 miles will be 18 divided by 70.
$\frac{18}{70}$

Simplify.
$\frac{2*3*3}{2*5*7}$
$\frac{3*3}{5*7}$
$\frac{9}{35}$

Divide.
≈ 0.25714

So a car traveling at 70 mph will take approximately 1.25714 hours or 1.26 hours to travel 88 miles.

7 0

2 years ago

Percy paid $24. 10 for a basketball. The price of the basketball was $22. 99. What was the sales tax rate?.

Alika [10]

Answer:

$3.11

Step-by-step explanation:

you have to subtract 24.10 from 22.99

6 0

1 year ago

Read 2 more answers

Solve the equation using the Subtraction Property of Equality: x + 1/2 = 5/2