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katen-ka-za [31]
3 years ago
11

The graph of y = ax 2 + bx + c is a parabola that opens up and has a vertex at

Mathematics
1 answer:
Talja [164]3 years ago
8 0
I think that the answer is A
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7 pounds of rice is 4$ how much is one pound of rice?​
blagie [28]

Answer:

$0.57

Step-by-step explanation:

7 pound = 4 $

1 pound =4/7 $

=0.57$

4 0
1 year ago
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31/8 into a mixed number
Svetlanka [38]
The answer is 3 and 7/8.
5 0
3 years ago
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This question is down below. The picture attached below. <br> Thanks.
Ostrovityanka [42]

The vendor has to sell 88 gingerbread houses to earn a profit of $665.60 and there is no chance that the vendor will earn $1500.

Given an equation showing profits of A Christmas vendor as

P=-0.1g^{2}+30g-1200.

We have to find the number of gingerbread houses that the vendor needs to sell in order to earn profit of $665.60 and $1500.

To find the number of gingerbread houses we have to put P=665.60 in the equation given which shows the profit earned by vendor.

665.60=-0.1g^{2}+30g-1200

0.1g^{2}-30g+1200+665.60=0

0.1g^{2}-30g+1865.60=0

Divide the above equation by 0.1.

g^{2}-300g+18656=0

Solving for g we get,

g=[300±\sqrt{(300)^{2}-4*1*18656 }]/2*1

g=[300±\sqrt{90000-74624}]/2

g=[300±\sqrt{15376}]/2

g=(300±124)/2

g=(300+124)/2       , g=(300-124)/2

g=424/2,  g=176/2

g=212,88

Because 212 is much greater than 88 so vendor prefers to choose selling of 88 gingerbread houses.

Put the value of P=1500 in equation P=-0.1g^{2}+30g-1200.

-0.1g^{2}+30g-1200=1500

0.1g^{2}-30g+1500+1200=0

0.1g^{2}-30g+2700=0

Dividing equation by 0.1.

g^{2}-300g+27000=0

Solving the equation for finding value of g.

g=[300±\sqrt{300^{2} -4*1*27000}]/2*1

=[300±\sqrt{90000-108000}] /2

=[300±\sqrt{-18000}]/2

Because \sqrt{-18000} comes out with an imaginary number so it cannot be solved for the number of gingerbread houses.

Hence the vendor has to sell 88 gingerbread houses to earn a profit of $665.60 and there is no chance that the vendor will earn $1500.

Learn more about equation at brainly.com/question/2972832

#SPJ1

7 0
1 year ago
Convert the number to scientific notation<br><br> 86,002,300 = .... x 10 to what power
olya-2409 [2.1K]

Answer:

8.6002300X10^7

Step-by-step explanation:

6 0
3 years ago
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I need you show me the answer what a or b or c
AlladinOne [14]
That would be A, its the only on where all the dots line with the numbers given
5 0
3 years ago
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