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Alekssandra [29.7K]
3 years ago
5

( First 5 questions. ) Which of the following ordered pairs is a solution of the given system of linear equations?

Mathematics
1 answer:
Mrac [35]3 years ago
6 0
1. (3,-2)

2. (-5,-4)

3. (-20,11)

4. (2,3)

5. (13/7, 40/7)
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Solve the inequality x^2-4x-7<0
ANEK [815]

Answer:

Inequality Form:

2 − √ 11 < x < 2 + √ 11

Interval Notation:

( 2 − √ 11 , 2 + √ 11 )

Step-by-step explanation:

Solve the inequality for  x  by finding  a ,  b , and  c  of the quadratic then applying the quadratic formula.

8 0
3 years ago
What is the value of p?
Ainat [17]
D.133
This would help
7 0
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Read 2 more answers
At one​ store, Julia saved ​$10 with a coupon for 40​% off her total purchase. At another​ store, the ​$29 she spent on books is
barxatty [35]
Let "a" and "b" represent the values of the first and second purchases, respectively.
  0.40*(original price of "a") = $10
  (original price of "a") = $10/0.40 = $25.00 . . . . divide by 0.40 and evaluate
  a = (original price of "a") - $10 . . . . . . Julia paid the price after the discount
  a = $25.00 -10.00 = $15.00

At the other store,
  $29 = 0.58b
  $29/0.58 = b = $50 . . . . . . . divide by the coefficient of b and evaluate

Then Julia's total spending is
  a + b = $15.00 +50.00 = $65.00

Julia spent $65 in all at the two stores.
6 0
3 years ago
PLEASE HELP ASAP!!!<br><br> How to solve the equations below <br><br> |x−2|=x<br> |x+1|=1−x
kumpel [21]

Answer:

x-2=x x=0

No Solution

x+1=1-x

Cancel   1 on both sides

Subtract   −x from both sides

x+x=0

Simplify x +x  to  2x

2x=0

x=0

Check Answer

x+1=1-x

0+1=1-0

1=1-0

1=1

6 0
3 years ago
Quadrilateral ABCD is a square. BC = 10 What is the length of AC? A. 10 sqrt 2 B. 20 sqrt 3 C. 10 sqrt 3 D. Sqrt 100
bixtya [17]

A is the correct answer to this question because AC and BC differ because the B must be changed to an A.

4 0
3 years ago
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