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lutik1710 [3]
3 years ago
15

Are these answers correct?

Mathematics
1 answer:
LenKa [72]3 years ago
4 0
Yes it is correct :)
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Use the given conditions to write an equation for each line in general form.
Aneli [31]

Answer:

It's the last choice:

2x + y - 1 = 0.

Step-by-step explanation:

x - 2y - 3 = 0

Convert to slope-intercept form in order to find the slope:

-2y = -x + 3

y = 1/2x - 3/2

So the slope  is 1/2.  The slope of a line perpendicular to this is -1 / 1/2 = -2.

Using the point-slope form to find  the required equation:

y - y1 = m(x - x1)

x = 4 and y = -7 so we have:

y + 7 = -2(x - 4)

y + 7 = -2x + 8

2x + y - 1 = 0  is the answer.

6 0
4 years ago
Plz answer this question:
alekssr [168]

Answer:

90°

Step-by-step explanation:

5x+20=9x

20=9x-5x

20=4x

x=5

5x+20+9x=

5(5)+20+9(5)=

25+20+45=

90

3 0
3 years ago
What is the area of 90ft and 2yd? i need an answer in feet or yards. im in 6th grade and need help
Goryan [66]

Answer:

i believe the answer may be 540 ft? im not sure though

7 0
3 years ago
Read 2 more answers
the function f of x equals negative (x - 3 in the presidency squared plus sine can be used to represent the area of a rectangle
valkas [14]

Answer:

Step-by-step explanation:

Ft

3 0
3 years ago
Which of the following questions describes the equation g + (-4) = -5?
Jlenok [28]

Answer: What number, when added to negative four is equal to negative five.

Step-by-step explanation:

Rearange the numbers to get -4+g=-5.

This eqation now reads -4 plus a number g is equal to -5, and can also be read as what number (g) added to -4 = -5.

If we were to solve for g we would get g= -1.

3 0
3 years ago
Read 2 more answers
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