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2 years ago

14

I don't understand how to do this one, any help?? Is it a.?

2 answers:

Andreas93 [3]2 years ago

8 0

C, because the equation of the table is y=80x. The equation for the graph is y=45x. When x is 11, you have 880 and 495. The difference is 385.

Alexxandr [17]2 years ago

3 0

C because you multiply than divide. find the slope for both

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Write the slope-intercept form of the equation of the line through thr given point with the given slope.

dimaraw [331]

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3 years ago

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2 years ago

How to solve and simplify 2/3 x 5/6 x 14

likoan [24]

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3 years ago

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If using the method of completing the square to solve the quadratic equation

lubasha [3.4K]

Answer:

31.25

Step-by-step explanation:

The general form of a complete square would be (x + a)^2 + b

Given an equation of X^2 + 15X + 25 = 0,

the idea is to reduce it into the form if (X + C)^2

which can be expanded into X^2 + 2XC + C^2

In this case 15 will be our 2C So our c will be 7.5.

Substituting in these numbers,

We have X^2 + 15X + (7.5)^2 = 0

However our original equation has 25 for its C^2, thus

we need to add 31.25 in order to get (7.5)^2

<u>FYI</u>

The final completed form will be (X + 7.5)^2 - 31.25

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3 years ago

Which expression can be used to determine the length of segment ZY? See image.

mixer [17]

Answer:

$\sqrt{8^{2} + 3^{2} }$

Step-by-step explanation:

We see that this is a rectangle triangle, and that the ZY side is the hypotenuse.

It's length is then square root of the sum of the squares of the other sides:

$hyp = \sqrt{a^{2} + b^{2} }$

So, in this case:

$ZY = \sqrt{8^{2} + 3^{2} }$

The 8 and 3 numbers are easy to get from the graphic... and the order doesn't matter (8² + 3² = 3² + 8²).

That's an easy rule to remember.

I hope it helps.

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2 years ago

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