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3 years ago

Round 12.45 to 2 significant figures

2 answers:

7 0

The first 2 significant figures are the 12,

After the 2, the next digit is 4, and this is not up to 5, so we do not round up the 2 to 3, we leave it as 2

12.45 ≈ 12 to 2 significant figures.

Hope this explains it.

timofeeve [1]3 years ago

6 0

12.45 rounded to 2 sig figs is 12

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Thank you, please show me the steps.

Lady bird [3.3K]

V=(1/3)hpir^2
d/2=r
2.75/2=1.375
to make volume 4 times more
multiply height by 4 or multiply radius by 2
example
find current cup volume
V=(1/3)2.75pi1.375^2=2.2057291666666pi

if we times height by 4
3.5*4=14
V=(1/3)14pi1.375^2=8.822916666666666666pi

if we times radius by 2
1.375*2=5.5
V=(1/3)3.5pi5.5^2=8.822916666666666666pi

we can show it is 4 times by
8.822916666666666666pi/2.2057291666666pi= 3.99999 close enough
dimentions are

diameter of 2.75in and height of 11in or
diameter of 5.5in and height of 3.5 in

7 0

3 years ago

Simplify 3xy + x 2 - 4xy + 2xupper2y

densk [106]

The answer is X^2-xy+2x^2y sorry if I am wrong

6 0

3 years ago

Drag each tile to the correct box.

ivolga24 [154]

Answer:

1 and 27, 12 and 33, 6 and 24, 36 and 81, 12 and 96.

Step-by-step explanation:

GCF of 36 and 81: 9

GCF of 1 and 27: 1

GCF of 12 and 33: 3

GCF of 12 and 96: 12

GCF of 6 and 24: 6

3 0

3 years ago

Deshi has 427 marbles and Elaheh has 394 marbles Deshi wants to give 125 marbles to his little brother how many total marbles wi

hjlf

Answer: Deshi will have 302 marbles and Elaheh will have 519.

Step-by-step explanation:

Deshi's Marbles will subtract 125.

427 - 125 = 302.

Elaheh's Marbles will add 125.

394 + 125= 519.

3 0

2 years ago

84 is what percent of 105?

saul85 [17]

Answer:

80%

Step-by-step explanation:

84/105=0.8

0.8=80%

3 0

3 years ago

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