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1 year ago

In the equation y= 2x + 7, the slope is 7. TrueFalse

Mathematics

2 answers:

STatiana [176]1 year ago

6 0

In a linear equation like y=2x+7 the slope represents

postnew [5]1 year ago

3 0

Answer:

False

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 )

y = 2x + 7 ← is in slope- intercept form

with slope m = 2 and y- intercept c = 7

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13. Write a function with a zero of 1/2. Explain how you know.

Naddik [55]

Answer: The zero of a function is any replacement for the variable that will produce an answer of zero. Graphically, the real zero of a function is where the graph of the function crosses the x‐axis; that is, the real zero of a function is the x‐intercept(s) of the graph of the function.

Step-by-step explanation:

5 0

3 years ago

You roll 2 number cubes whats the probability of it being 7

mars1129 [50]

Total number of possible outcomes = 36

Total number with sum 7 =5
{1, 6} {2, 5} {3, 4}, {5, 2}, {6, 1}

P(sum 7) = 5/36

Answer: 5/36

4 0

4 years ago

Read 2 more answers

If a varies inversely as the cube root of b and a=1 when b=64, find b

Mrrafil [7]

Answer:

b = 64/a³

Step-by-step explanation:

Using the given information, we can only find a relation between a and b. We cannot find any specific value for b.

Since a varies inversely as the cube root of b, we have ...

a = k/∛b

Multiplying by ∛b lets us find the value of k:

k = a·∛b = 1·∛64 = 4

Taking the cube of this equation gives ...

64 = a³b

b = 64/a³ . . . . . divide by a³

The value of b is ...

b = 64/a³

7 0

3 years ago

A pentagonal pyramid has a volume of 1536 in3. What is the volume of the pentagonal pyramid if the measures are multiplied by ?

rjkz [21]

1. A
2. C
3. C
4. B
5. D

Im not 100% sure but I tried my best :) good luck.

6 0

3 years ago

Read 2 more answers

Can someone help me with the questions in the picture?

Tpy6a [65]

Answer:

9. Perpendicular

10. neither

11. Perpendicular

12. neither

Step-by-step explanation:

------------------

Slope Intercept Form: y = mx + b

* M is the slope

* B is the y intercept

------------------

Lines are parallel if they have the same slope (ex. If two equations have a slope of 2)

Lines are perpendicular if they have the opposite and the reciprocal slope (ex. If 1 equation has a slope of 3 and another equation has a slope of - $\frac{1}{3}$ )

------------------

9. Perpendicular: The slopes are reciprocal of each other and one of them is negative

10. Neither: The lines are not perpendicular because the slopes are both negative

11. Perpendicular: If you plot y=5 it is a horizontal line through 5. If you plot x=-3 it is vertical line through -3. These lines intercept and are perpendicular.

12. Neither: The slopes of both equations need to be the same to be parallel

Put both equations into y=mx+b
y = 1/2x -2 AND y = -1/2x -2

4 0

3 years ago