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docker41 [41]
4 years ago
12

Is -3x=15 a function

Mathematics
1 answer:
lutik1710 [3]4 years ago
6 0
Yes because the answer would be

X=5
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What is 1(z) when z = -7/12
Firlakuza [10]
It will just be -7/12 because anything times 1 stays the same
8 0
3 years ago
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Suppose the side lengths are multiplied by 2. Describe the change in the perimeter
max2010maxim [7]

Answer:

The perimeter would also be multiplied by 2.

Step-by-step explanation:

The perimeter would also be multiplied by 2. Suppose the sides of a triangle are 5, 10 and 13. The perimeter would be the sum of the side lengths or 5 + 10 + 13 = 28 ft.

Multiply each side length so 5*2 = 10, 10*2 = 20 and 13*2 = 26. Find the perimeter by finding their sum, 10 + 20 + 26 = 56.

Divide the new perimeter by the old perimeter to find a scale factor.

56/28 = 2.

The new perimeter is exactly 2 times bigger since 2*28 = 56.

3 0
4 years ago
Each question on a test was worth 5 points. What was the total number of points if there were n questions?
jarptica [38.1K]

The total number of points would be equal to 5n.

You would simply multiply 5 by the amount of questions. In this case, we do not know the amount, so we can use the variable n.

8 0
3 years ago
2. Find the equation of a line<br>a) With a slope of 4, passing through the origiin​
madreJ [45]

Answer:

y=4x

Step-by-step explanation:

<u>Equation of the line</u>

A line can be expressed in many forms.

The equation of the line in slope-intercept form is:

y=mx+b

Being m the slope and b the y-intercept.

The point-slope form of the equation of a line is:

y-k=m(x-h)

Where m is the slope and (h,k) is a point through which the line passes.

The equation of a line passing through points (x1,y1) and (x2,y2) can be found as follows:

\displaystyle y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)

We are required to find a line with slope m=4 passing through the origin (0,0).

Using the point-slope form:

y-0=4(x-0)

Simplifying

\boxed{y=4x}

3 0
3 years ago
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Find f(-5) if f(x)=lx+1l<br>A.6<br>b.5<br>c.4​
3241004551 [841]

Answer:

its C

Step-by-step explanation:

f(x) = |(-5)+1|

f(x)=|4|

absolute value of 4 is 4

4 0
3 years ago
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