3 years ago

Can I get some help please

Mathematics

1 answer:

Mamont248 [21]3 years ago

3 0

-2(-2)+3=7
-2(0)+3=3
-2(4)+3=-5

You might be interested in

There are 3 balls in a hat; one with the number 1 on it, one with the number 6 on it, and one with the number 7 on it. You

V125BC [204]

Answer:

coin: ball:

head -- 6

tail -- 6

6 0

2 years ago

Which expression is equivalent to -1.3 - (-1.9)−1.3−(−1.9)minus, 1, point, 3, minus, left parenthesis, minus, 1, point, 9, right

RideAnS [48]

Answer:

Choise B: $-1.3+1.9$

Step-by-step explanation:

For this exercise you must remember the multiplication of signs:

$(+)(+)=+\\(-)(-)=+\\(-)(+)=-\\(+)(-)=-$

By definition, equivalent expression have the same value.

Then, you can find an equivalent expression to the expression provided in the exercise by simplifying it.

So, given:

$-1.3 - (-1.9)$

To simplify it, you can distribute the negative that is located outside of the parentheses (in order to eliminate the parentheses).

Applying this procedure, you get the following equivalent expression:

$-1.3 - (-1.9)=-1.3+1.9$

Therefore, as you can notice, the expression obtained matches with the one shown in Choice B.

8 0

3 years ago

Trevor solved the system of equations below. What mistake did he make in his work?

wariber [46]

2x + y = 5

x − 2y = 10

y = 5 − 2x

x − 2(5 − 2x) = 10

x − 10 + 4x = 10

5x − 10 = 10

add 10 to each side

5x-10+10 = 10 + 10

5x=20

5x = 0 this is the error

He needs to add 10 to each side

7 0

3 years ago

What is the slope of the line represented by the equation y = 4/5x – 3?

IRISSAK [1]

Slope is 4/5

The equation is Y = mx + b
M represent the slope
In your equation, 4/5 is the slope.

3 0

3 years ago

Central Allen High School's girls golf team has won 76% of its games this year. The team has won 19 games. How many total games

lawyer [7]

Answer: 25 games

Step-by-step explanation:

Take the fractions 76/100 and 19/x

Cross multiply. 76 times x equally 76x and 100 times 19 equals 1900.

Divide 76x by 76 which equals just x.

Divide 1900 by 76 which equals 25.

x=25

8 0

3 years ago