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NISA [10]
3 years ago
6

Tell whether the ratios form a proportion. 1/3, 7/21

Mathematics
1 answer:
Vilka [71]3 years ago
6 0
I don’t think it does
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The formula is not giving me the answer I want ​
il63 [147K]

so is this the formula you trying to get an an see for?

4 0
3 years ago
Use the formula S equals 2 left-parenthesis l w right-parenthesis plus 2 left-parenthesis l h right-parenthesis plus 2 left-pare
frosja888 [35]

Answer: 52 square cm

Step-by-step explanation:

The given surface area formula of a rectangular prism,

S = 2 wl + 2 lh + 2 hw

Where  is the length, w is the width and h is the height of the prism,

Here, length, l = 2 cm,

Width, w = 3 cm

And, Height, h = 4 cm

Thus,The required surface area of the prism,

S = 2 × 3 × 2 + 2 × 2 × 4 + 2 × 4 × 3

S = 12 + 16 + 24 = 52 square cm.

6 0
3 years ago
Identify the geometric mean of 8 and 20 in simplest radical form.
Temka [501]

Answer:

8/x = x/20

x^2=160

x=sqrt(160)

x=sqrt(16*10)

x=sqrt(16)*sqrt(10)

x=4*sqrt(10)

Step-by-step explanation:

4 0
2 years ago
The water level of a lake is 22 feet. It falls to 18 feet during one month. What is the percent decrease in the water level?
Fantom [35]
18%
22-18=4
4 divided by 22
7 0
3 years ago
Ashley purchased a prepaid phone card for $25. Long distance calls cost 14 cents a minute using this card. Ashley used her card
OverLord2011 [107]
If we add $0.14 until we get $21.64, we would add it 154.572 times. To check this answer and make sure I’m right, do this equation: 0.14 x 154.572, then you would get 21.64.

The correct answer is 154.572 minutes.
5 0
2 years ago
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