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mash [69]
3 years ago
7

If Angle 8 is congruent to angle 10 and Angle 1 is congruent to angle 7, which describes all the lines that must be parallel? Li

nes r and s are crossed by lines t and u to form 16 angles. Clockwise from top left, at the intersection of r and t, the angles are 1, 2, 3, 4; at the intersection of s and t, 5, 6, 7, 8; at the intersection of u and s, 9, 10, 11, 12; at the intersection of u and r, 13, 14, 15, 16.
A. Only lines r and s must be parallel.


B. Only lines t and u must be parallel.


C. Lines r and s and lines t and u must be parallel.


D. Neither lines r and s nor lines t and u must be parallel.
Mathematics
2 answers:
NISA [10]3 years ago
4 0

Answer:

C

Step-by-step explanation:

Since they are crossing with each other they're not necessarily parallel with everything but instead themselves.

Mars2501 [29]3 years ago
4 0

Answer:

C

Step-by-step explanation:

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Step-by-step explanation:

Equivalent expressions are expressions that are the same,even though they might look different. If you plug in the same variable value into equivalent expressions they will each give you the same value when you simplify.

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67 is a prime number, and its ones digit is two less than the tens digit.
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2 years ago
If <br>4x+(y+x)=180<br>what is x? what is y?​
uysha [10]

Step-by-step explanation:

4x+(y+x)=180\\\\\text{Solve for}\ x:\\\\4x+y+x=180\qquad\text{combine like terms}\\\\(4x+x)+y=180\qquad\text{subtract}\ y\ \text{from both sides}\\\\5x=180-y\qquad\text{divide both sides by 5}\\\\\dfrac{5x}{5}=\dfrac{180-y}{5}\\\\\boxed{x=\dfrac{180-y}{5}}\\\\\text{Solve for}\ y:\\\\5x+y=180\qquad\text{subtract}\ 5x\ \text{from both sides}\\\\\boxed{y=180-5x}

7 0
3 years ago
Kim's age is twice that of her sister. When you add Kim's age to her sister's age, you get 42. How old is each sister?
xz_007 [3.2K]

Answer:

a: K = 2s

K + s = 42

b: 2s + s = 42

K = 28

s = 14

Step-by-step explanation:

1. Come up with equations based on the information given.

K = Kim

s = sister

Kim is twice of her sister -> K = 2s

When you add Kim's age to her sister's age, you get 42 -> K + s = 42

2. Substitue for K to find out the value of s

K = 2s

2s + s = 42

3. Solve for s

s = 42/3

s= 14

4. Solve for K

K = 2s

K = 2*14

K = 28

7 0
3 years ago
Draw a model of square root of 12 using perfect squares
Shkiper50 [21]

Answer:

The answer is "\sqrt{12} is not a perfect square".

Step-by-step explanation:

12 is not a perfect square because it is the natural number, and no other natural number would square the number 12, that's why it is not a perfect square.

If we calculate the square root of \sqrt{12}. so, it is will give 2\sqrt{3} that is not a perfect square root which can be described as follows:

\Rightarrow \sqrt{12}= \sqrt{2\times 2\times 3}

            = \sqrt{2^2\times 3}\\\\= 2\sqrt{3}\\\\

\bold{\sqrt{12}} is not a perfect square root.

7 0
3 years ago
Read 2 more answers
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