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3 years ago

A number minus 11 is 12.

Mathematics

1 answer:

Setler79 [48]3 years ago

5 0

Let n = a number.

n - 11 = 12

n = 12 + 11

n = 23

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5(a-2b)-3(a-2b)<br><br>algebra2 .-.

d1i1m1o1n [39]

5(a - 2b) - 3(a - 2b) |use distributive property: a(b - c) = ab - ac

= 5a - 10b - 3a + 6b

= (5a - 3a) + (-10b + 6b)

= 2a - 4b

7 0

3 years ago

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Choose the graph below that has an undefined slope.

Ronch [10]

Answer:

The correct option is A.

Step-by-step explanation:

The first line passing through the points (-6,2) and (-6,0).

The slope of a line is

$m=\frac{y_2-y_1}{x_2-x_1}$

The slope of first line is

$m_1=\frac{0-2}{-6-(-6)}=\infty$

The second line passing through the points (0,-4) and (-1,1). The slope of second line is

$m_2=\frac{1-(-4)}{-1-0}=-5$

The third line passing through the points (0,-6) and (2,-6). The slope of third line is

$m_3=\frac{-6-(-6)}{2-0}=0$

The fourth line passing through the points (0,6) and (-3,-7). The slope of fourth line is

$m_4=\frac{-7-6}{-3-0}=\frac{13}{3}$

Since the slope of a vertical line is infinity, Therefore option A is correct.

8 0

3 years ago

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13. Mark has a board that is 12 feet long. He

horrorfan [7]

Answer:

1.5 feet

Step-by-step explanation:

12/8 = 1.5 feet

6 0

3 years ago

Huong had $23 to spend on six notebooks. After buying them she had $11. How much did each notebook cost?

Nataly [62]

23-11=12
She spent $12 on notebooks, and she bought six notebooks.
12/6=2

Each notebook costed $2.

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3 years ago

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20 POINTS PLEASE HELP

Temka [501]

1. It's in point-slope form right now
y - 7 = -x - 4
x + y = 3

2. Find the slope through (y2-y1) / (x2-x1)
The slope is 3.
Use the point slope formula: y - 9 = 3 (x - 8)
y - 9 = 3x - 24
y = 3x - 15

3. a. standard form
b. point-slope
c. slope-intercept
d. standard

5. Use point-slope: y - 8 = 6 (x - 3)
y - 8 = 6x - 18
-6x + y = -10

6 0

3 years ago