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3 years ago

Which sum is equivalent to (11k2 + 3k + 1)?

2 answers:

7 0

A) You can only add together like terms, so adding the k^2, k, and terms without k gives 4k^2+7k^2+2k+k+6-5=11k^2 +3k +1

BabaBlast [244]3 years ago

4 0

a) 4k^2 + k – 5) + (7k^2 + 2k + 6)

11k^2 +3k +1

Choice A

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true or false: the points (6, 13), and (21, 33) and (99, 137) all lie on the same line. th equation of the lines is y + /3x + 5.

Phoenix [80]

Answer:

point A (6,13) lies on the equation. True

given point B(21,33) lies on the equation. True

given point C (99, 137) lies on the equation. True

The equation that was given was y = 4/3x + 5

Now,check the given equation for the given points.

1) A (6,13)

Substitute x = 6 in the given equation y = 4/3x +5

y = 4/3(6) + 5 = 4(2) + 5 = 8+5 = 13

y=13

the given point A (6,13) lies on the equation.

2) B (21,33)

Substitute x = 21 in the given equation y=4/3x+5

y=4/3(21) + 5 = 4(7) + 5=28+5=33

y = 33

the given point B(21,33) lies on the equation.

3) C (99, 137)

Substitute x = 99 in the given equation y = 4/3x + 5

y=4/3(99) + 5 = 4(33) + 5 = 132 + 5 = 137

y = 137

the given point C (99, 137) lies on the equation.

There is your answer

8 0

3 years ago

The formula for the area of a square is A=s^2, where s is the length of one side. Rearrange the formula to solve for s

mihalych1998 [28]

$A = s^2 \\ s = \sqrt{A}$

4 0

3 years ago

Explain why Josue is correct?

alexgriva [62]

Because she did the math :)

4 0

3 years ago

If x and y in the equations

Brums [2.3K]

We can let
a = 1/(x-1)
b = 1/(y+2)
and rewrite the equations as
2a - b = 10
a + 3b = -9
Using the first to write an expression for b, we get
b = 2a - 10
Substituting this into the second equation gives
a + 3(2a -10) = -9
7a -30 = -9 . . . . . . . . simplify
7a = 21 . . . . . . . . . . .add 30
a = 3
b = 2·3 - 10 = -4

Now, we can find x and y.
   3 = 1/(x -1)
   x - 1 = 1/3
   x = 1 1/3 = 4/3

  -4 = 1/(y +2)
  y +2 = -1/4
  y = -2 1/4 = -9/4

Then the desired sum is
  x + y = 4/3 -9/4 = (16 -27)/12
x + y = -11/12

The appropriate choice is ..
c. -11/12

5 0

3 years ago

How do you show your work for this problem?

laiz [17]

Answer:

i cant see it

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers