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3 years ago

X + -4 =11 marking brainliest show work too please

Mathematics

2 answers:

MArishka [77]3 years ago

7 0

move the -4 to the other side

X = 11 + 4

X = 15

mr_godi [17]3 years ago

5 0

Answer:

X=15

Step-by-step explanation:

Change X+-4 to X-4=11

Add 4 and you get

X=15

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Which of the following descriptions represent the transformation shown in the image? Part 3b<br>

Igoryamba

Answer: d) none of the above

<u>Step-by-step explanation:</u>

Start at Black Triangle: B = (0, -4) C = (4, -1) D = (2, -5)

End up at Red Triangle: B = (2, 0) C = (-2, 3) D = (0, -1)

Rotation of 180°: (x, y) → (-x, -y)

Reflection across y-axis: (x, y) → ( -x, y)

Reflection across x-axis: (x, y) → (x, -y)

Reflection across x=1: (x, y) → (2 - x, y)

$a) \\\begin{array}{ccc}\qquad \text{(x, y)}&\text{Rotate 180}^o&\text{reflect across y-axis}\\B:\ (0, -4)&(0, 4)&(0,4)\\C: (4, -1)&(-4,1)&(4,1)\\D: (2, -5)&(-2,5)&(2,5)\end{array}$

$b) \\\begin{array}{ccc}\qquad \text{(x, y)}&\text{Rotate 180}^o&\text{reflect across x = 1}\\B:\ (0, -4)&(0, 4)&(2,4)\\C: (4, -1)&(-4,1)&(6,1)\\D: (2, -5)&(-2,5)&(4,5)\end{array}$

$c) \\\begin{array}{ccc}\qquad \text{(x, y)}&\text{Rotate 180}^o&\text{reflect across x-axis}\\B:\ (0, -4)&(0, 4)&(0,-4)\\C: (4, -1)&(-4,1)&(-4,-1)\\D: (2, -5)&(-2,5)&(-2,-5)\end{array}$

None of the given options transform the black triangle onto the red triangle.

7 0

3 years ago

Given that (-3,1) is on the graph of f(x), find the corresponding point for the function f(x-1)

Helen [10]

Answer:

(-2,1)

Step-by-step explanation:

So we are given f(-3)=1 since the point (-3,1) is on f(x).

We want to use this point to find a point on f(x-1).

Now,

f(-3)=1

and we want

f(x-1)=1

What would x need to be such that x-1 is -3.

x-1=-3

Add 1 on both sides:

x=-3+1

x=-2

x would need to be -2 in f(x-1)=1 in order to use that f(-3)=1.

So (-2,1) is the point for the function f(x-1) that corresponds to the point (-3,1) for f(x).

I know that f(x-1) would only be effecting our input because x-1 is the input.

8 0

3 years ago

Situation: to compute the perimeter of a rectangle you find the sum of two times

Alex_Xolod [135]

Answer:

110

Step-by-step explanation:

$30 + 25 \\ = 55 \times 2 \\ = 110$

5 0

3 years ago

How many Perpendicular lines does an H have

Shtirlitz [24]

Answer:

it has two line

Step-by-step explanation:

7 0

3 years ago

Two parallel lines are crossed by a transversal. What is the value of x? x = 21 x = 28 x = 35 x = 37

DENIUS [597]

Using the definition of vertical angles you can set up the equation 3x+4=115, when solved you get x=37. Hope this helps!

4 0

3 years ago

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