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insens350 [35]
3 years ago
8

Simplify 43 - (8.5 – 2 •1.25)2

Mathematics
1 answer:
Diano4ka-milaya [45]3 years ago
4 0

Answer:

43−(8.5−(2)(1.25))(2)

=43−(8.5−2.5)(2)

=43−(6)(2)

=43−12

=31

Step-by-step explanation:

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If y - 3 = 3x, which of the following sets represents possible inputs and outputs of the function, represented as ordered pairs?
choli [55]

Answer:

a)  Only the set of ordered pairs  {(0,3), (1, 6), (2, 9))  satisfies the    

     equation y - 3 = 3x

Step-by-step explanation:

Here, the given equation is : y - 3 = 3x

or ,   y - 3 x = 3

Now, check the value of equation for first ordered pair in each set.

a)  {(0,3), (1, 6), (2, 9))      : Checking for (0.3)

y - 3x = 3 - 3(0)  = 3

and 3 = 3 = Right side

Hence, {(0,3), (1, 6), (2, 9))  satisfies the equation.

b) {(3,0), (6, 1), (9, 2)}     : Checking for (3,0)

y - 3x = 0 - 3(3)  = -9

and -9    ≠  3  (Right side)

Hence, {(3,0), (6, 1), (9, 2)}   do NOT satisfy the equation.

c) {(1,3), (2,6), (3,9)}     : Checking for (1,3)

y - 3x = 3 - 3(1)  = 3 - 3 = 0

and 0     ≠  3  (Right side)

Hence,{(1,3), (2,6), (3,9) }  do NOT satisfy the equation.

d) {(3, 1), (6,2), (9,3)}  : Checking for (3,1)

y - 3x    = 1 - 3(3)  = 1 - 9 = -8

and -8     ≠  3  (Right side)

Hence,{(3, 1), (6,2), (9,3)}  do NOT satisfy the equation.

4 0
3 years ago
Use addition or substitution to find the value of y for this set of equations. 4x + 13y = 40 4x + 3y = -40
Aliun [14]
4x + 13y = 40
4x + 3y = -40

multiply second equation by -1

4x + 13y = 40
-4x - 3y = 40

add equations together

10y = 80
y = 8

put y in either original equation

4x + 3(8) = -40
4x + 24 = -40

subtract 24 from both sides

4x = 64

x=16
y=8
5 0
3 years ago
What is the slope of a line going through (12, 2), (−7, 5)
makkiz [27]
The equation to find the slope of a line is "y2 - y1 / x2 - x1"

Our second y coordinate is 5 and our first y coordinate is 2.
5 - 2 = 3.

Our second x coordinate is -7, and our first x coordinate is 12.
-7 - 12 = -19.

We now have 3 / -19
3 / -19 = ~-0.158

Therefore, the slope of the line is ~-0.158
3 0
3 years ago
PLEASE HELP !! ILL GIVE 40 POINTS ; PLUS BRAINLIEST !! DONT SKIP ANSWER.
Alborosie

Answer:

yxu and tux are the alternate interior angles

Step-by-step explanation:

you just go across and then the other side

so pretty much mirroring it twice

4 0
3 years ago
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patriot [66]

Answer:

a

Step-by-step explanation:

because the diagram the length decimal place degree

8 0
3 years ago
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