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Alinara [238K]
3 years ago
15

Help it's due tomorrow!!!!

Mathematics
1 answer:
zepelin [54]3 years ago
5 0
8a^2 + 3a^2

11a^2 

since both have a^2 you only have to add the coefficients 
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I'm not sure of my answer I know that you have to multiply diagonally then add or subtract I'm not sure.
Dima020 [189]
-18(1) = -18,right? 

4(3) = 12, right? 

-18 - 12 = -30

From the looks of it, we had to "Subtract" the outcome of each problem that we went over 

You're correct: -30 (option A.) would be your answer  

7 0
3 years ago
2. (08.05 HC)
4vir4ik [10]

Answer:

option 3

Step-by-step explanation:

not sure if right

8 0
2 years ago
Explain all parts of the equation y=mx+b <br><br> *will mark brainliest*
saul85 [17]

Answer:

Step-by-step explanation:

In the equation of a straight line (when the equation is written as "y = mx + b"), the slope is the number "m" that is multiplied on the x, and b is the y-intercept (that is, the point where the line crosses the vertical y-axis). This useful form of the line equation is sensibly named as the "slope-intercept form".The coordinates of every point on the line will solve the equation if you substitute them in the equation for x and y. The slope m of this line shows its steepness, or slant - It can be calculated like this:

                         m = change in y-value  /change in x-value

The equation of any straight line, called a linear equation, can be written as: y = mx + b ....

6 0
3 years ago
What is the solution to 2x^2+8=x^2-16?
KIM [24]
X= 2i(square root of 6), -2i(square root of 6)
7 0
3 years ago
((sinB)/1+cosB) + ((1+cosB)/sinB) = 2cscB prove that the equation is an identity
Contact [7]

Step-by-step explanation:

If you need any explanation, we can communicate normally

4 0
2 years ago
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