All categories

3 years ago

What is the surface area of the cylinder with height 7 in and radius 3 in? Round your

Mathematics

1 answer:

meriva3 years ago

8 0

Answer:

188.495

Step-by-step explanation:

Given that,

h=7

r=3

Surface area of a cylinder = 2πr(h + r)

=2π×3(7+3)

=18.8495559215 (10)

=188.495

You might be interested in

Terry bought 7 packs of dodger peanuts at the game.If each pack holds 1 2/3 ponds of peanuts how many pounds of peanuts did terr

Irina18 [472]

Answer:

11 2/3 pounds

Step-by-step explanation:

If a pack contain 1 2/3 pounds, 7 packs would contain :

1 2/3 x 7

$\frac{5}{3}$ × 7 = 35/3 = 11 2/3 pounds

8 0

3 years ago

What is the range of the following relation?

Anna [14]

Answer:

[0,-infinity[

Step-by-step explanation:

you look on the starting point and the ending point of the y-axis (♾ is always opened [ )

7 0

3 years ago

Read 2 more answers

The PTO is selling raffle tickets to raise money for classroom supplies. A raffle ticket costs $3. There is 1 winning ticket out

matrenka [14]

Answer:

A) 0.54

B) 4.32

C) 2.4

D) 336

Step-by-step explanation:

A)Expected value (you) = (84 × 3) × $\frac{1}{140}$ × (0.3)× $\frac{139}{140}$

= 0.54

B) Expected value (you) 8 tickets = 0.54 × 8

= 4.32

C) Expected value ( for PTO) = ( 3 - 84) × $\frac{1}{140}$ + ( 3 - 0 ) × $\frac{139}{140}$

= 2.4

D) For 140 raffle tickets = 2.4 × 140

= 336

4 0

3 years ago

For each fraction, select the most appropriate estimate. 36 40 choose.. 1 3 choose.. 70 100 choose.. 1 8 choose.. Options: Close

sesenic [268]

Answer:

Convert each fraction to its percentage form:

= 36 / 40

= 90%

= 1/3

= 33.3%

= 70/100

= 70%

= 1 / 8

= 12.5%

Looking at the percentages:

= 36 / 40 is closest to 1.

= 1/3 <u>and</u> 70/100 are closest to one half which is 50%

= 1/8 is closest to 0.

8 0

3 years ago

Using the quadratic formula to solve 5x = 6x2 – 3, what are the values of x?

soldi70 [24.7K]

Answer:

$x_1=1.23\\x_2=-0.40$

Step-by-step explanation:

Given a quadratic equation in the form $ax^2+bx+c=0$ , you can use the Quadratic formula to solve it. This is:

$x=\frac{-b\±\sqrt{b^2-4ac}}{2a}$

Then, you need to subtract $5x$ from both sides of the equation given:

$5x-5x=6x^2-3-5x\\0=6x^2-5x-3$

You can identify that:

$a=6\\b=-5\\c=-3$

Then, substituting values into the Quadratic formula, you get:

$x=\frac{-(-5)\±\sqrt{(-5)^2-4(6)(-3)}}{2(6)}$

$x_1=1.23\\x_2=-0.40$

3 0

3 years ago

Read 2 more answers