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natka813 [3]
3 years ago
9

I need help ASAP!!!!!

Mathematics
2 answers:
solmaris [256]3 years ago
6 0

Answer:

D y = -1/2x^2

Step-by-step explanation:

This is a downward facing parabola going through the origin so we know it is of the form

y = -ax^2

The only choice is

y = -1/2 x^2

babunello [35]3 years ago
5 0
The correct choice is d
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Suppose that a large pumpkin empty a swimming pool in 40 hours and that a small pumpkin empty a pool and 70 hours working togeth
Norma-Jean [14]

Answer:

Total 25.45 hours will be taken to empty the pool.

Step-by-step explanation:

Time taken by large pumpkin to empty the pool=40 hours

Time taken by the smaller pumpkins to empty the pool=70 hours

Amount of pool emptied by large pumpkin in one hour=\frac{1}{40}

Amount of pool emptied by small pumpkin in one hour=\frac{1}{70}

Amount of pool emptied in one hour if both pumpkins work together=

\frac{1}{40}+ \frac{1}{70}

=\frac{11}{280}

Therefore, the no. of days will be the reciprocal of the amount of work done in one hour ie . \frac{280}{11}

Total 25.45 hours will be taken to empty the pool.

5 0
3 years ago
a rectangle prism has a volume of 3x^2 + 18x+ 24. its base has a length of x + 2 and width of 3, what expression represents the
OlgaM077 [116]
\bf \textit{volume of a rectangular prism}\\\\
V=lwh\qquad 
\begin{cases}
l=x+2\\
w=3\\
V=3x^2 + 18x+ 24
\end{cases}\implies \cfrac{V}{lw}=h
\\\\\\
\cfrac{3x^2 + 18x+ 24}{3(x+2)}=h\implies \cfrac{\underline{3}(x^2 + 6x+ 8)}{\underline{3}(x+2)}=h
\\\\\\
\cfrac{(x+4)\underline{(x+2)}}{\underline{(x+2)}}=h\implies x+4=h
6 0
3 years ago
I AM GIVING BRAINLIEST
spayn [35]

Answer:

The first choice is correct

Step-by-step explanation:

$32.00 x 15% = 4.80. 32.00-4.80=27.20. Another way to work it is the first choice, subtracting 15% from 100% and then multiplying 85% by $32.00. Same answer

7 0
3 years ago
-5+(-8)-(6+9)-(6•4)
Fittoniya [83]

Answer:

-28

Step-by-step explanatio

7 0
2 years ago
Read 2 more answers
What is the greatest common factor of 3062, 8062, and 2013?
Zanzabum
One
the gcf all the numbers is 1
6 0
3 years ago
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