2 years ago

Which of the following is the surface area of the right cylinder below?

1 answer:

5 0

Answer:

the answer is b

Step-by-step explanation:

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KatRina [158]

X - tens digit
y - units digit

$x=2y\\
x+y=12\\\\
2y+y=12\\
3y=12\\
y=4\\\\
x=2\cdot4\\
x=8\\\\
10\cdot8+4=\boxed{84}
$

4 0

3 years ago

Greeley [361]

Answer: the answer is 34

Step-by-step explanation:

8 0

2 years ago

lesya [120]

D and e would be the answer

3 0

2 years ago

mart [117]

15 x 3 = 45 - 5 = 40
The number will be 15.
Hope this helped.

4 0

3 years ago

Mandarinka [93]

Answer:

Diana approximately had 128 cards

Step-by-step explanation:

Let n be the number of cards Diana had. She knows that

Write a proportion:

$\dfrac{17}{n}=\dfrac{4}{30}$

Cross multiply:

$4n=17\cdot 30\\ \\4n=510\\ \\n=\dfrac{510}{4}=127.5\approx 128$

5 0

2 years ago