2 years ago

4. (i) Solve the equation 2x2 – 7x + 4 = 0, giving

Mathematics

1 answer:

Colt1911 [192]2 years ago

6 0

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What is the y-intercept of the function, y = 3x -5?

vlabodo [156]

Answer:

-5 is the y-intercept

Step-by-step explanation:

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3 years ago

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Two different rectangles have the same area of 48 square feet but different perimeters what are the dimensions of each rectangle

vodomira [7]

Answer:

4*12 and 6*8

Step-by-step explanation:

4*12= 48

4+4+12+12= 32

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3 years ago

For a production of sweeney todd in las vegas, orchestra seats cost $42 and mezzanine seats cost $25. if a group of 14 people sh

Lesechka [4]

Answer: 8 orchestra seats and 6 mezzanine seats.

Step-by-step explanation:

Let be "o" the number of orchestra seats they bought and "m" the number of mezzanine seats they bought.

Set up a system of equations:

$\left \{ {{42o+25m=486} \atop {o+m=14}} \right.$

You can apply the Substittution Method to solve the system of equations:

1. Solve for "o" from the second equation:

$o=14-m$

2. Substitute it into the first equation and solve for "m":

$42(14-m)+25m=486\\\\588-42m+25m=486\\\\-17m=-102\\\\m=\frac{-102}{-17}\\\\m=6$

3. Substitute the value of "m" into $o=14-m$ and evaluate, in order to find the value of "o". This is:

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3 years ago

Factor of 4-(2a+3b)^2

Anna71 [15]

$4-(2a+3b)^2$

$(2a+3b)^2 :$

$4a^2+12ab+9b^2$

$= 4-(4a^3+12ab+9b^2)$

$=-(4a^2)-(12ab)-(9b^2)$

apply minus - plus rules :

$+(-a)=-a$

Refine:

$=-4-4a^2-12ab-9b^2$

<span>hope this helps!</span>

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y=5x+10

Step-by-step explanation:

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