3 years ago

How do you know when a parabola is a "smiley face" or "frown face"?

Mathematics

1 answer:

ivann1987 [24]3 years ago

6 0

If the parabola looks like a smile then its a smiley face. if the parabola looks like a frown then its a frown face

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What is<br>4/15 as a ratio

larisa86 [58]

4:15

..............

4/15 = 4:15

6 0

2 years ago

Two small pitchers and one large pitcher can hold 8 cups of water. One large pitcher minus one small

Kitty [74]

Answer:

20 cups

Step-by-step explanation:

Let the small pitchers be given by s

and the larger pitchers by l

According to the given information:

$2s + l = 8....(1) \\ and \\ l - s = 2 \\ l = s + 2...(2) \\ substituting \: l = s + 2 \: in \: equation \: (1) \\ 2s + s + 2 = 8 \\ 3s = 8 - 2 \\ 3s = 6 \\ s = \frac{6}{3} \\ \huge \red{ s = 2} \\ substituting \: s = 2 \: in \: equation \: (2) \\ l = 2 + 2 \\ \huge \purple{ l = 4}\\\\Now\\ 3l +4s \\= 3\times 4+4\times 2\\= 12 +8\\= 20\: cups$

So, 3 large pitchers and 4 small pitchers hold 20 cups of water.

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3 years ago

A young equestrian loved to ride her horse all day long, dreaming of the day she would ride in the Kentucky Derby. One day in ea

Vsevolod [243]

The first step is:
- determine how far from the house is young equestrian at noon.
2 x 10 = 20 miles
15 t = 20 + 10 t
15 t - 10 t = 20
5 t = 20
t = 20 : 5
t = 4 hours
Answer: at 4:00 PM.

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3 years ago

If item costs $99.99 with 15% off and I get final price. It then asks me what percentage of savings. How do I get the percentage

nirvana33 [79]

Ok.. if you got 84.99 as you answer then you would put .15 *99.99 then you would get 14.9985 then round and get 15.00 and then 99.99 - 15.00 ....you will get 84.99...i think

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2 years ago

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Which value for x makes the sentence true?<br><br> 18x = 360

aniked [119]

Answer:

X=20

Step-by-step explanation:

360/18=20

3 0

2 years ago

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