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3 years ago

-8=-(x+4) what is the answer

1 answer:

5 0

Step 1: Flip the equation.
−
x
+
4
=
−
8
Step 2: Subtract 4 from both sides.
−
x
+
4
−
4
=
−
8
−
4
−
x
=
−
12
Step 3: Divide both sides by -1.
−
x
−
1
=
−
12
−
1
x
=
12
Answer:
x
=
12

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Add. write your answer as a mixed number in simplest form. 5 1/2+6 7/9

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3 years ago

Triangle A″B″C″ is formed by a reflection over x = −3 and dilation by a scale factor of 3 from the origin. Which equation shows

Allisa [31]

Answer:

see below

Step-by-step explanation:

Each segment in ΔA"B"C" is 3 times the length of the corresponding segment in ΔABC. This is due to the dilation by a scale factor of 3.

Then you have ...

$\overline{A''B''}=3\overline{AB}\quad\text{or}\\\\\dfrac{\overline{AB}}{\overline{A''B''}}=\dfrac{1}{3}$

The latter relation matches the second choice.

5 0

3 years ago

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Which of the following is the y-intercept of the line whose equation is 7y-42×+7=0?

timama [110]

Answer:

7 is the y intercept

Step-by-step explanation:

5 0

3 years ago

Kamila [148]

Answer:

Therefore,

The height is 23.3 ft.

Step-by-step explanation:

Given:

ΔABC ~ ΔXYZ

AC = 108.5 ft

BC = h

XZ = 14 ft

YZ = 3ft

To Find:

h = ?

Solution:

Δ ABC ~ Δ XYZ….Given

If two triangles are similar then their sides are in proportion.

$\dfrac{AB}{XY} =\dfrac{BC}{YZ}=\dfrac{AC}{XZ} \textrm{corresponding sides of similar triangles are in proportion}\\$

Substituting the values we get

$\dfrac{BC}{YZ}=\dfrac{AC}{XZ}$

$\dfrac{h}{3}=\dfrac{108.5}{14}\\\\h=\dfrac{325.5}{14}=23.25=23.3$ (nearest tenth)

Therefore,

The height is 23.3 ft.

3 0

3 years ago

81000 in standard form

BabaBlast [244]

I believe the answer is 10^4

4 0

3 years ago

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