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vazorg [7]
2 years ago
9

Please help I need it due in for 5 mins

Mathematics
1 answer:
just olya [345]2 years ago
8 0

Answer:

is this science?

Step-by-step explanation:

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Doing my sister's homework plz help<br>​
patriot [66]

Answer:

5/14

Step-by-step explanation:

4 0
2 years ago
The data set represents a month-to-month progression of gasoline prices over the course of several months in an unspecified city
Tresset [83]

The quadratic regression equation for this data set is \rm y=-0.143x^2+0.59x+2.82\\.

<h3>What is the general form of a quadratic equation?</h3>

The general form of the quadratic equation is given by;

\rm ax^2+bx+c=0

Where; a, b, and c are the constants.

x;   0       1         2        3          4         5

y;  2.82  3. 29  3. 46  3. 33   2. 88  2. 24

From the table when the value of x = 0 the value of y is 2.82.

Then,

\rm y=ax^2+bx+c\\\\x=0\\\\2.82=a0^2+b(0)+c\\\\c=2.82

From the table when the value of x = 3 the value of y is 3.33.

\rm y=ax^2+bx+c\\\\x=3\\\\2.82=a(3)^2+b(3)+c\\\\9a+3b+2.82=2.82\\\\9a=-3b\\\\b=-3a\\\\

From the table when the value of x = 5 the value of y is 2.24.

\rm y=ax^2+bx+c\\\\x=3\\\\2.24=a(5)^2+(-3a)(5)+c\\\\25a-15a+2.82=2.24\\\\40a=2.24-2.82\\\\10a=-0.68\\\\a= \dfrac{-0.68}{10}\\\\a=-0.143

And the value of b is;

\rm b=3a\\\\b=3(-0.14)\\\\b=0.59

Therefore,

The quadratic regression equation for this data set is;

\rm y=ax^2+bx+c\\\\y=-0.143x^2+0.59x+2.82\\\\

Hence, the quadratic regression equation for this data set is \rm y=-0.143x^2+0.59x+2.82\\.

To know more about the Quadratic equation click the link given below.

brainly.com/question/14935613

8 0
2 years ago
Ella purchased a game that was on sale 12% off. The sales tax in her county is 6%. Let y represent the original price of the gam
spayn [35]
Let y represent the original price of a game.
<span>Ella purchased a game that was on sale 12% off which means that the new price of the game is 88% of the original price, so:
</span>y*88/100&#10;=0.88y
Next, t<span>he sales tax in her county is 6%, which means that the the now price is 106% to the original price, so:
</span>0.88y*106/100&#10;=0.88(1.06)y&#10;=0.9328y. As a result, the final cost can represent under the form of 0.9328y. Hope it help!
3 0
2 years ago
Help please idk what im doing wrong
Musya8 [376]
From what I can see, you are on the right track.

one thing you could have done is combine like terms.
{10}^{2}  -  {3}^{2}  =  {7}^{2}

Now just take the square root of 7 squared. That takes out the squared making your answer 7 or G.

You were on the right track, you just skipped a step.

hope this helped!
6 0
2 years ago
A math test has 25 problems on it. If a student incorrectly answers 5 problems on the test,
Diano4ka-milaya [45]

Answer:

i beleve they would get an 80% sorry if im wrong

7 0
3 years ago
Read 2 more answers
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