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3 years ago

Need help azp plz it on the photo

Mathematics

1 answer:

Alika [10]3 years ago

4 0

1 + x < 5

the sum means addition, so the sum of 1 and x is 1 + x and less than 5 means exactly that, less than 5. The less than sign is represented by <

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The graph of the equation y − 1 = −2(x − 2) contains which set(s) of ordered pairs? Select all that apply.

Mila [183]

Answer:

OPTION B.

OPTION C.

Step-by-step explanation:

Given the equation of the line:

$y - 1 = -2(x -2)$

We can substitute the coordinates of each set of ordered pairs into the equation in order to know which belong to the graph of that equation:

A. $(0, -2)\ and\ (1, 3)$

Substituting into the equation these coordinates:

$x=0\\\\y=-2$

We get:

$-2 - 1 = -2(0 -2)\\\\-3\neq 4$

The graph of the given line does not contain this set of ordered pairs.

B. $(0, 5)\ and\ (-2, 9)$

Substituting into the equation these coordinates:

$x=0\\\\y=5$

We get:

$5 - 1 = -2(0 -2)\\\\4=4$

Substituting into the equation the coordinates of the other ordered pair:

$x=-2\\\\y=9$

We get:

$9 - 1 = -2(-2 -2)\\\\8=8$

The graph of the given line contains this set of ordered pairs.

C. $(-1, 7)\ and\ (2, 1)$

Substituting into the equation these coordinates:

$x=-1\\\\y=7$

We get:

$7- 1 = -2(-1 -2)\\\\6=6$

Substituting into the equation the coordinates of the other ordered pair:

$x=2\\\\y=1$

We get:

$1 - 1 = -2(2 -2)\\\\0=0$

The graph of the given line contains this set of ordered pairs

D. $(3, -1)\ and\ (2, -1)$

Substituting into the equation these coordinates:

$x=3\\\\y=-1$

We get:

$-1 - 1 = -2(3 -2)\\\\-2=-2$

Substituting the other ordered pais (2, -1):

$-1 - 1 = -2(2 -2)\\\\-2\neq 0$

The graph of the given line does not contain this set of ordered pairs.

8 0

4 years ago

Read 2 more answers

The bag has 99 buttons. Draw more buttons so there are 105 buttons in all. Write the numbers as you count.

Makovka662 [10]

Answer:

100 101 102 103 104 105

Step-by-step explanation:

im kinda confused

3 0

3 years ago

Gas mileage is the number of miles you can drive on a gallon of gasoline. A test of a new car results in 535 miles on 21 gallons

yulyashka [42]

We should first find the gas mileage
that will be 535/21 equals to 25.5
The car's gas mileage is 25.5
To find how much the car can drive on 51 gallons of gas
25.5×51
Equals to 1300.5
the car can drive 1300.5 miles on 51 gallons of gas

7 0

3 years ago

And model links of 12 cm represents an actual length of 102 feet what is the scale for the model

babymother [125]

If there are 30.48cm in a foot and 12cm represents 102 feet then 12 cm represents 3109cm or 12:3109. Divide both sides by 12 to get the scale and it is: 1:259, the scale is 259.

Hope this helps :)

4 0

4 years ago

Solve the equation. 3 (x - 2)^2 - 8 = 5

monitta

Answer:

Step-by-step explanation:

3(x-2)(x-2)-8=5

3[x^2-4x+4]-8-5=0

3x^2-12x+12-13=0

3x^2-12x-1=0

use the quadratic formula to find x { -b+-sqrt(b^2-4ac) } / 2a

where a =3 , b=-12 and c =-1 from our equation above

{ -(-12)+- sqrt[ (-12)^2 - 4(3)(-1) ] } / [2(3)]

{ 12 +- sqrt [ 144 + 12 ] } / 6

{ 12 +- sqrt (156) } / 6

2 +- {sqrt ( 4 *13) } / 6

2 +- { 2 sqrt (13) } /6

2 +- sqrt (13) /3

there you go :)

6 0

3 years ago

Need help azp plz it on the photo​

Need help azp plz it on the photo