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Alina [70]
3 years ago
7

Are there only two prime numbers that differ by 1?

Mathematics
1 answer:
Nadusha1986 [10]3 years ago
3 0
The only two prime numbers that differ by 1 are 3 and 2 .
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8.) cos D<br> A<br> B<br> C<br> D<br> 6<br> 8
vagabundo [1.1K]

Using Pythagorean theorem, we can find that DG is 10.(I don't think I need to explain this)

Now cosD means the adjacent side over the hypotenuse.

The side adjacent to <D is 6 and the hypotenuse is 10 so

cosD=6/10=3/5

Which means the correct answer is choice D.

Hope this helped!

6 0
3 years ago
I need help for this one do I add them up and equal them to 180?
nikitadnepr [17]
The measure of angle 1 is 210 degrees.

You'll have to draw an auxiliary line in between the two parallel lines.

Then, you'll have to find out the angle measures next to 100 and next to 50. Since a line is 180°, then the angle measures next to 100 and 50 are 80 and 130 respectively.

Then, since you have an auxiliary line, you can use the rule of alternate interior angles of parallel lines being equal.

Then from there just add up 80 and 130 to get you 210.
7 0
3 years ago
What is 9(5x)? I really need help on this
zheka24 [161]

Answer:

45x

Step-by-step explanation:

that is the answer!!! :)

8 0
3 years ago
Read 2 more answers
Is 0.9 &lt;,&gt;,or = to 4/25
Nina [5.8K]

Answer:

greater than (>)

Step-by-step explanation:

4/25=0.16

0.9>0.16

8 0
3 years ago
Are the two triangles congruent ? Please answer correctly !!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!
mel-nik [20]

Answer:

yes

Step-by-step explanation:

4 0
3 years ago
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