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Anni [7]
3 years ago
7

Can someone please help me with this question

Mathematics
1 answer:
Anton [14]3 years ago
5 0
It seems the first line has to be

1. AB=CD and AD=CB   1. given

2. AC=AC   2. Reflexivity (things are equal to themselves)

3  \triangle ACB \cong \triangle CAD      3. SSS

4.  \angle  1 =   \angle  4.  Corresponding parts of congruent triangles

5  DC || AB                 5.  Congruent alternate traversal angles imply parallel lines





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Delaney scored -15 points in a word game. Find the opposite of this integer
-Dominant- [34]

Answer:

positive 15

Step-by-step explanation:

opposite of negative is positive

8 0
3 years ago
What is the solution of the system?
Phoenix [80]

Answer:

(-2, 6)

Step-by-step explanation:

We can simply do this by plugging in all of the coordinates. (I did this in my head quickly, so I know what it is; I'm just going to plug in the correct answer.) The correct answer is (-2, 6), so we're just going to plug them into the simplest equation, which is probably y=-3x. So...

6=-3(-2)

6=6

This answer is correct. If you're unsure about the answer, you can always check in the other equation. So...

3(-2)+2(6)=6

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Hope this helps and have an amazing day ^^

5 0
3 years ago
Read 2 more answers
1 1/4mi = ft, can someone explain this to me
skelet666 [1.2K]
First off, we'll convert the mixed fraction to "improper" and check about, keeping in mind that, there are 5280 feet in 1mile.

\bf \stackrel{mixed}{1\frac{1}{4}~mi}\implies \cfrac{1\cdot 4+1}{4}\implies \stackrel{improper}{\cfrac{5}{4}~mi}\\\\
-------------------------------

\bf \begin{array}{ccll}
feet&miles\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
5280&1\\
f&\frac{5}{4}
\end{array}\implies \cfrac{5280}{f}=\cfrac{1}{\quad \frac{5}{4}\quad }\implies \cfrac{5280}{f}=\cfrac{\frac{1}{1}}{\quad \frac{5}{4}\quad }
\\\\\\
\cfrac{5280}{f}=\cfrac{1}{1}\cdot \cfrac{4}{5}\implies \cfrac{5280}{f}=\cfrac{4}{5}\implies \cfrac{5280\cdot 5}{4}=f\implies 6600=f
4 0
3 years ago
X+6=x<br> can you help please thank you
Anna35 [415]

x + 6 = x

there is literally no solution.

7 0
2 years ago
At the start of the 20th century,there were about 100,000 tigers in the wild.In 2014 there were about 3,200.What percent did the
Tcecarenko [31]
The population decreased 31.25%
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2 years ago
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