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finlep [7]
3 years ago
13

Solve it! Hurry Will mark as brainliest IF U TRY TO get the points free i would report u

Mathematics
2 answers:
Afina-wow [57]3 years ago
8 0

Answer:

A. 3x^2+7x^2+2×3x ×7-84x = 3x^2+7x^2-2×3x×7

9x^2+49x^2+42x-84 x= 9x^2+49x^2-42x

9x^2+49x^2-42 = 9x^2+49 x^2-42x

verified

B.

ad-work [718]3 years ago
7 0

Answer:

Give him or her brainlist

Step-by-step explanation:

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Help how do I solve it
Mila [183]
When two lines intersect, opposite angles are equal. This means that angle 1 equals angle 4. We can use that information to find their values.
Angle 1 = Angle 4
6n+1 = 4n+19
2n=18
n=9

6(9)+1=54+1=55

Angle 1 and 4 equal 55 degrees.

Two angles that form a straight line together have a total sum of 180 degrees. Angles 1 and 5 are like this, as well as Angles 4 and 5, and Angles 4, 3, and 2 added together.

Therefore, 180 = (angle 4) + (angle 3) + (angle 2)
180= 55+(angle 3) + (angle 2)
125= angle 3 + angle 2

I'm not sure what else can be extrapolated from this. There doesn't seem to be a way to find out what the measure of angle 2 is without angle 3 as well. I hope this helps and you can figure it out from the answer choices!
5 0
3 years ago
-11-(-10) what is the value
sertanlavr [38]

The answer is -1 , because when you add a negative number to a positive number the negative number will subtract , and vise versa.  

7 0
3 years ago
The radius of a circle is 3 m. Find its circumference in terms of pi.
kozerog [31]

The circumference of a circle is 2\pi r

  • r is the radius  --> 3m

Circumference = 2\pi (3) = 6\pi

It says to leave in terms of pi which means that we won't solve 6\pi

Thus the answer is 6\pi.

Hope that helped!

7 0
2 years ago
Evaluate the expression when c=4.<br>c²+5​
Sauron [17]
21 I think cause you use pemdas
4 0
3 years ago
Read 2 more answers
Don randomly draws two cards from a standard deck of 52 cards. He does not replace the first card. What is the probability that
kramer
Easy
so remember
4 aces in a deck
probability =(desired outcomes)/(total possible)

total possible=52

4/52=1st card
then since he picked 1 out the total possible is and assuming he drwe an ace 3/51
so the answer is 4/52 times 3/51=1/221
7 0
3 years ago
Read 2 more answers
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