Answer the following: 5 x (2)³

Mathematics

2 answers:

Ivenika [448]3 years ago

7 0

Answer:

Step-by-step explanation:

first find 2^3 which is 8

then 8*5 which is 40

dusya [7]3 years ago

3 0

Answer:

Step-by-step explanation:

5 x (2)³

PEMDAS says exponents first

5 x 8

Then multiply

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2x+5y=11 and 4x+3y=1 solve with elimination

storchak [24]

Multiply you first equation by 2 to get 4x + 10y = 22
Now the x terms can be eliminated and cancelled out using elimination.
4x + 10y = 22
4x + 3y = 1

To eliminate you need to "subtract", so you need to multiply one of the equations by -1.

4x + 10y = 22
-4x -3y = -1
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0 + 7y = 21
y = 3

Now plug 3 into either one of the equations to get x.

7 0

3 years ago

What does the line 5x + 4y = -6 look like

RoseWind [281]

Answer:

See attached photo for graph

Step-by-step explanation:

Solve the equation for y... (that means get y by itself)

4y = -5x - 6 (subtract 5x from both sides)

y = -(5/4)x - 6/4 (divide both sides by 4)

y = -(5/4)x - 3/2 (simplify)

Now you can graph using slope-intercept method. The y-intercept is -3/2, and the slope is -5/4