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Deffense [45]
3 years ago
5

Which system of inequalities has a line as a solution?

Mathematics
1 answer:
erastova [34]3 years ago
7 0

linear inequality

The solution of a linear inequality is the ordered pair that is a solution to all inequalities in the system and the graph of the linear inequality is the graph of all solutions of the system

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Wren Renee found that 11 of run run found that 11 of the 20 pizzas he sold were pepperoni he wanted to know what number was in p
levacccp [35]

Answer: 55%

Step-by-step explanation:

Number of pizzas sold that were pepperoni = 11

Total pizza sold = 20

Percentage of pizza that were pepperoni will be:

= Number of pepperoni pizzas/Total pizza sold × 100

= 11/20 × 100

= 11 × 5

= 55%

3 0
3 years ago
Pleaseee will make brainlist :(
Vlada [557]

Answer:

x^2 -20x + 100

Step-by-step explanation:

How this works is that you multiply each number by every other number, so.

(x+a)(x+b) so you do x times x since the parenthesis multiplies them together. Then you do x times b.

Then you do a times x since a is the next number in the first pair. then you do a times b.

(* is the sign for multiplication for the sake of simplifying it and to be easier than doing something like x x x where you are multiplying x together with x.)

So in the expression (x + a)(x + b) you are basically doing

x * x            +         x * b           +        a * x        +          a * b

In your case, a is = to -10 and b is equal to -10

So your expression would be

x * x    +   x * -10    +    -10 * x     +    -10 * -10

so x times x is x^2 and x times -10 is -10x     You are doing -10 * x twice so it is -20x and -10 times -10 is 100

So the final equation would be x^2 plus -20x plus 100 or

x^2 + (-20x)  + 100

which is

x^2 -20x + 100

Hope this helps!

4 0
3 years ago
Factor the polynomial completetly 21b2-40b-21
ch4aika [34]
First we note symmetry in the expression's coefficients.
We also note that 7*3=21, and 7+3=10.

From the rational roots theorem, we are tempted to try with 3 and 7 as coefficients of the factors.

Try
(7b+3)(3b+7)=21b^2+(49+9)b+21
By switching the sign of 3b+7 to 3b-7, we get the signs right, to check:
(7b+3)(3b-7)=21b^2+(9-49)b-21=21b^2-40b-21  ....right!

So
(7b+3)(3b-7)=21b^2-40b-21


3 0
4 years ago
What is 1/8 as a decimal?<br><br> Give your answer.
Ganezh [65]

Answer:

  • 0.125

Step-by-step explanation:

Please mark Brainliest! :)

6 0
3 years ago
Read 2 more answers
How can i use variables to describe real world problems? explain.
Assoli18 [71]
You can use variables such as x & y to represent what you're looking for in the problem or represent information you're given in a real world problem. 
7 0
3 years ago
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