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Fed [463]
4 years ago
6

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

Mathematics
1 answer:
ivann1987 [24]4 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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Ann bought 4 souvenirs during 2 days of vacation. How many days will ann have to spend on vacation before she will have bought a
Anna007 [38]

Answer:  She will have to spend 8 days on vacation before she will have bought a total of 16 souvenirs.

Step-by-step explanation:

Given: Ann bought 4 souvenirs during 2 days of vacation.

Per day she buys =\dfrac{4}{2}=2 souvenirs  [unit rate]

To buy 16 souvenirs , she will take \dfrac{16}{2}  = 8 days.

Hence, she will have to spend 8 days on vacation before she will have bought a total of 16 souvenirs.

7 0
3 years ago
What is the smallest number to be subtracted from 1860 <br> to get a perfect square.
faltersainse [42]

Answer:

So 11 must be subtracted to get a perfect square. The square root of 3 is starts with 1.7, so the square root of 300 will start with 17. So indeed 289=300–11 is the largest square number smaller than 300, so 11 is the smallest number we can subtract from 300 to make it a square.

Step-by-step explanation:

3 0
3 years ago
3-3k+7k=5b solve for k 
DaniilM [7]
3-3k+7k=5b \\\\ 3+4k=5b \\\\ 4k=5b-3 \\\\ \boxed{k=\frac{5b-3}{4}}
5 0
3 years ago
Simplify completely 5x3+10x2+15x/5x
vlabodo [156]

Answer:

x²+2x+3....

Step-by-step explanation:

The given expression is:

5x3+10x2+15x/5x

To simplify this expression take out the common of the numerator:

5x is common in all three terms of the numerator:

Like,

5x(x²+2x+3)/5x

Now the value of the common and the denominator is same. Therefore 5x will be cancel out by 5x

Then the remaining term is:

= x²+2x+3

Thus the answer is  x²+2x+3....

3 0
3 years ago
Read 2 more answers
Latonya bought flowers for her mother. She spent $45. Each tulip was $1 and each rose was $2. She bought 3 more tulips than rose
allsm [11]
Lets start from scratch.
45 is the number of money she spent that means that right side of = sign is 45
let m represents number of roses.
we can write:

t*$1+ m*$2 = $45

Since she bought 3 more tulips than roses that means that m = t - 3

when we express m we get:

t + 2*(t-3) = 45

the answer is B.
5 0
3 years ago
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