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trapecia [35]
3 years ago
5

I need help with these 2 questions, please also try to explain how to get it.

Mathematics
1 answer:
faust18 [17]3 years ago
6 0
The red lines signify congruency. Meaning, if one angle (say <EFD) is 75 and has one red line and <JAB also has one red line, it means it also equals 75.
Just like <GHF is 130 and has two lines, <JBC also has two red lines, so it also equals 130.
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An equation is graphed below. How many solutions does the equation have?
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One as it intersects only on the Y axis 
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3 years ago
- The four-digit number 1210 has an interesting property.
vampirchik [111]

Answer:

ABCDEFG = 3211000

Step-by-step explanation:

A counts the number of zeroes, and there are 3 zeroes (E, F, G), so A = 3.B counts the number of ones, and there are 2 ones (C, D), so B = 2.C counts the number of twos, and there is 1 two (B), so C = 1.D counts the number of threes, and there is 1 three (A), so D = 1.There is no four, five, six in, so E, F, G are all zeroes.

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2 years ago
Triangles ABD and ACE are similar right triangles. which ratio best explains why the slope of AB is the same as the slope of AC
sertanlavr [38]
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4 0
3 years ago
Read 2 more answers
In ΔDEF, what is sin D, in simplified form?
Igoryamba

Answer: second option.

Step-by-step explanation:

You must apply sin\alpha=\frac{opposite}{hypotenuse}

Then, given the right triangle and the angle D, the opposite side and the hypotenuse of the triangle are the following:

opposite=20\\hypotenuse=25

Therefore, when you substitute values, you have:

sinD=\frac{20}{25}

Reduce the fraction, then you obtain:

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5 0
3 years ago
Read 2 more answers
3x + 9 &gt; -18
aleksklad [387]

Answer:

The written form would be "Nine more than three times a number is greater than -18.

Step-by-step explanation:

To graph it, you must first solve for x.

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x > -9

Now we can graph this by putting an open dot at -9 and then drawing an arrow to the right.

4 0
3 years ago
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