3 years ago

What is the first step in solving the following system of equations?

Mathematics

1 answer:

astraxan [27]3 years ago

4 0

Answer:

Solve the first equation for y

Step-by-step explanation:

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Which of the following statements is false? 1.5 > 1,4

ArbitrLikvidat [17]

Answer:

the first one

Step-by-step explanation:

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3 years ago

-4.2 (-2.8+4.5) what is the value of the expression

Artyom0805 [142]

-7.14 should be your answer!

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4 years ago

The diagonal of a rectangle is 25 in. The width is 15 in. What is the area of the rectangle?

Nana76 [90]

Answer:

375 in² is the answer.

Step-by-step explanation:

Are of rectangle= area of 2 triangle

= 1/2*25*15+1/2*25*15

=187.5+187.5

=375 in²

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3 years ago

What is the equation of a line that passes through the point(3,-8)and has a slope of 0?

hram777 [196]

Answer: y=-8

Step-by-step explanation:

If the slope is zero that means that the line does not go up (or have any rise) and therefore must be a horizontal line. Since it passes through the point (3,-8), the equation has to be y=-8.

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3 years ago

write an equation of a line that passes through the following tow points (4, -6) and (2, 8) show work

stiks02 [169]

Answer:

$y = -7x + 22$

Step-by-step explanation:

Given

$(x_1,y_1) = (4,-6)$

$(x_2,y_2) = (2,8)$

Required

Determine the line equation

This question will be answered using linear interpolation.

This is represented as thus:

$\frac{y - y_1}{x - x_1} = \frac{y_2 - y_1}{x_2 - x_1}$

Substitute values for x1,x2,y1 and y2

$\frac{y - (-6)}{x - 4} = \frac{8 - (-6)}{2 - 4}$

$\frac{y +6}{x - 4} = \frac{8 +6}{2 - 4}$

$\frac{y +6}{x - 4} = \frac{14}{-2}$

$\frac{y +6}{x - 4} =-7$

Cross Multiply

$y + 6 = -7(x - 4)$

$y + 6 = -7x + 28$

Make y the subject

$y = -7x + 28-6$

$y = -7x + 22$

7 0

3 years ago