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ANTONII [103]
3 years ago
7

7+ X -9= -15 solve the equation

Mathematics
2 answers:
Aleksandr-060686 [28]3 years ago
6 0
I believe the answer is x=24
Andrews [41]3 years ago
6 0
X=-15+9-7
x= -6-7
x= - 13
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What is an equation of the line that passes through the point
Keith_Richards [23]

Answer:

5x - 4y = 32

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Given

5x - 4y = 36 ( subtract 5x from both sides )

- 4y = - 5x + 36 ( divide all terms by - 4 )

y = \frac{5}{4} x - 9 ← in slope- intercept form

with slope m = \frac{5}{4}

Parallel lines have equal slopes, thus

y = \frac{5}{4} x + c ← is the partial equation

To find c substitute (8, 2) into the partial equation

2 = 10 + c ⇒ c = 2 - 10 = - 8

y = \frac{5}{4} x - 8 ← in slope- intercept form

Multiply through by 4

4y = 5x - 32 ( subtract 4y from both sides )

0 = 5x - 4y - 32 ( add 32 to both sides )

32 = 5x - 4y, that is

5x - 4y = 32 ← in standard form

4 0
3 years ago
Read 2 more answers
A line passes through the points (7, 10) and (7, 20). Which statement is true about the line? It has a slope of zero because x 2
yaroslaw [1]

Answer:

It has no slope because x 2 minus x 1 in the formula m = StartFraction y 2 minus y 1 Over x 2 minus x 1 EndFraction is zero, and the denominator of a fraction cannot be zero.

Step-by-step explanation:

Points:

  • (7, 10) and (7, 20)

Slope-intercept form:

  • y= mx+b

slope is:

  • m= (y2-y1)/(x2-x1)= (20-10)/(7-7)= 10/0,

denominator of the fraction is zero, we can't divide by zero, so this line has no slope

----------

It has a slope of zero because x 2 minus x 1 in the formula m = StartFraction y 2 minus y 1 Over x 2 minus x 1 EndFraction is zero, and the numerator of a fraction cannot be zero.

  • no, numerator is not zero

It has a slope of zero because x 2 minus x 1 in the formula m = StartFraction y 2 minus y 1 Over x 2 minus x 1 EndFraction is zero, and the denominator of a fraction cannot be zero.

  • no, it has no slope

It has no slope because x 2 minus x 1 in the formula m = StartFraction y 2 minus y 1 Over x 2 minus x 1 EndFraction is zero, and the numerator of a fraction cannot be zero.

  • no, numerator is not zero

It has no slope because x 2 minus x 1 in the formula m = StartFraction y 2 minus y 1 Over x 2 minus x 1 EndFraction is zero, and the denominator of a fraction cannot be zero.

  • yes
3 0
3 years ago
Read 2 more answers
A triangle has side lengths of 17 inches, 19 inches, and 10 inches. What kind of triangle is it?
Virty [35]

Answer:

Scalene triangle

Step-by-step explanation:

a scalene triangle has 3 uneven sides

8 0
2 years ago
When Jennifer went to bed, there was 4 3/4 inches of snow on the ground. When she woke up, there was 6 1/2 inches of snow on the
kodGreya [7K]

let inches of snow be x..

x=6 1/2-3/4

3/4+x=6 1/2

Explanation:

Convert 1/2 into similar denominator:

1/2=2/4=x2

3/4=3/4=x1

Convert into mixed number:

6 2/4=6x4+2=26/4

Subtract the terms:

26/4-3/4=23/4

Answer:

x=23/4 or 5 3/4.

5 0
3 years ago
A line passes through the point (0, 2) and has a slope of-1/2
Marta_Voda [28]
The answer is C! Hope this helps!
5 0
3 years ago
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