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Nata [24]
3 years ago
10

Help please what is the sum of the series ?

Mathematics
1 answer:
abruzzese [7]3 years ago
6 0
Hello!

So k are the number 1-4

We put these numbers into the equation then add the results

1 is 4
2 is 16
3 is 36
4 is 64

Know we add these

4 + 16 + 36 + 64 = 120

The answer is 120

Hope this helps!
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Evaluate the expression below when x = 4, y = 5<br><br> 3(y-x) + 4y
likoan [24]

Answer:

23

Step-by-step explanation:

Brackets go first, 5 (y) - 4 (x) = 1. Now, 3 x 1 = 3, you do this because of the 3 next to the brackets. Now add them together.

4 0
3 years ago
Anyone please help me pleaseeee
lora16 [44]

R = { (x,y): 3x-y=0 }

The condition is 3x=y so that's not going to be any of these things.

R is reflexive if (x,x)∈R for all x.   Let's check.

3x - y = 3x - x = 2x ≠ 0  necessarily.   NOT REFLEXIVE

R is symmetric if (x,y)∈R → (y,x)∈R.   Let's check.

(x,y)∈R  so

3x-y = 0

y  = 3x

Is  (y,x)∈R.  That would be true if 3y-x=0

3y - x = 3(3x) - x = 8x ≠ 0 necessarily NOT SYMMETRIC

R is transitive if (x,y)∈R and (y,z)∈R → (x,z)∈R.   Let's check.

3x-y = 0  so y=3x

3y-z = 0 so z=3y = 9x

3x - z = 3x - 9x = -6x ≠ 0 necessarily   NOT TRANSITIVE

6 0
3 years ago
What is the answer to 4t−t+2
Alexeev081 [22]

Answer:

3t+2

Step-by-step explanation:

First, we focus on the part with the "t" variable. Then we subtract the values with variables which gets us 3t. Finally, we can't do anything with the +2, so our solution is 3t+2.

6 0
3 years ago
Is the function even,odd, or neither
alukav5142 [94]

Answer:

even I think

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Please solve this I need it for class.
Agata [3.3K]

Answer:

<em>A =1</em>

<em>B = 9</em>

<em>C = 8</em>

<em>D = 1</em>

4 0
3 years ago
Read 2 more answers
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