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GaryK [48]
3 years ago
6

Besides knowing every corresponding side and angle of one triangle is congruent to another, how could you prove that two triangl

es are congruent? How can this help you prove certain properties are true of parallelograms?​
Mathematics
1 answer:
Citrus2011 [14]3 years ago
7 0

Step-by-step explanation:

Congruent means the same. You can prove that the two triangles are congruent by the measurements and also if they look the same. You can also see if parallelograms are congruent by seeing if they are the same. They also have to mirror the image of the other. Your welcome :)

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Sqrt of 4a-4 + sqrt of a-1
Monica [59]
\large\begin{array}{l} \textsf{Simplify the expression (I'm goint to call it E)}\\\\ \mathsf{E=\sqrt{4a-4}+\sqrt{a-1}} \end{array}


\large\begin{array}{l} \textsf{So E is a sum of two square roots. Notice that you can factor}\\\textsf{the 4 out on the first one:}\\\\ \mathsf{E=\sqrt{4\cdot a-4\cdot 1}+\sqrt{a-1}}\\\\ \mathsf{E=\sqrt{4\cdot (a-1)}+\sqrt{a-1}}\\\\ \mathsf{E=\sqrt{2^2\cdot (a-1)}+\sqrt{a-1}}\\\\ \mathsf{E=\sqrt{2^2}\cdot \sqrt{a-1}+\sqrt{a-1}}\\\\ \mathsf{E=2\cdot \sqrt{a-1}+\sqrt{a-1}} \end{array}

\large\begin{array}{l} \mathsf{E=2\cdot \sqrt{a-1}+1\cdot \sqrt{a-1}}\\\\ \mathsf{E=(2+1)\cdot \sqrt{a-1}}\\\\ \boxed{\begin{array}{l}\mathsf{E=3\cdot \sqrt{a-1}} \end{array}} \end{array}


If you're having problems understanding this answer, try seeing it through your browser: brainly.com/question/2179170


\large\textsf{I hope this helps. :-)}


Tags: <em>square root sqrt simplify expression radical irrational algebra</em>

5 0
3 years ago
Brainliest if correct
Ivan
The answer is 20x-4, hope this helps.
3 0
2 years ago
help ASAP thanks........
Fittoniya [83]

Answer: Yes, they are similar- and the Scale Factor is 2.5

Step-by-step explanation: To find the scale factor, simply divide the larger number on the bigger shape by its counterpart in the smaller image, so for example: 60 divided by 24 is 2.5, and there is your scale factor. You can further test this by multiplying 4 x 2.5 which gives us 10, the other value on the larger shape.

7 0
2 years ago
Your French fries have a food cost of $0.50, and you want to have a margin of 75% on the fries. What will the final selling pric
AleksandrR [38]

Answer:

\frac{0.5}{100} = \frac{x}{175}

0.5 represent the original 100% but we want to obtain a 75% aditional so we can find for the value x if interest and we got:

x= 175 *\frac{0.5}{100} =0.875

So we need to sell the fries ar 0.875$ if we want to obtain a 75% of margin

Step-by-step explanation:

For this case we know that the french fries cost $0.50 and we want to have a margin of 75% on the fries. So we can use the following proportional rule:

\frac{0.5}{100} = \frac{x}{175}

0.5 represent the original 100% but we want to obtain a 75% aditional so we can find for the value x if interest and we got:

x= 175 *\frac{0.5}{100} =0.875

So we need to sell the fries ar 0.875$ if we want to obtain a 75% of margin

4 0
3 years ago
Read 2 more answers
Please help me?????????????
shusha [124]
The answer is 10m long
6 0
3 years ago
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