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Zepler [3.9K]
3 years ago
9

Solve x2 - 8x = 20 by completing the square {-22, 14} {-14, 22} {-10.2) -(2.10)

Mathematics
1 answer:
alexgriva [62]3 years ago
6 0
-10,2 is your answer when you simplify it
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tatuchka [14]
It is d the answer is d
3 0
2 years ago
Mr. Falk is going to replace the carpet in his basement. The basement is
Rzqust [24]
<h3>Answer:  1728 dollars</h3>

==========================================================

Explanation:

1 yard = 3 feet

We'll divide by 3 to convert from feet to yards

  • 27 feet = 27/3 = 9 yards
  • 18 feet = 18/3 = 6 yards

The basement is 9*6 = 54 square yards in floor area.

At $32 per square yard, the total cost to carpet the floor is 32*54 = 1728 dollars.

7 0
3 years ago
Find the value of c such that the expression is a perfect square trinomial
Alika [10]

Answer:

c = 4

Step-by-step explanation:

In a perfect square trinomial, the following relationship is true:

(x+y)^2=x^2+2xy+y^2

In order for the given expression to be a perfect square trinomial:

x^2=x^2\\4x=2xy\\c=y^2

Solving for 'c':

4x=2xy\\y=2\\c=y^2=2^2\\c=4

Therefore, c must be equal to 4.

6 0
3 years ago
Given PQR and STU,what is Q?
liberstina [14]
If ur asking what pqr stands for, it’s Procedure Qualification Record
8 0
3 years ago
What are the minimum and maximum values of t for which ſt + 31 &lt; 2?
valkas [14]

Answer:

maximum : ϵ -29 a number infinitesimally larger than -29, or -28 if you prefer integers

minimum : -\infin

negative infinity

Explanation:

if t + 31 < 2

than t + 31 - 31 < 2 - 31

t < -29

-\infin < t \:<  - 29

any number less than -29

ϵ just means infinitesimal small quantity denoted as \pm \frac{1}{\infin}

3 0
3 years ago
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