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Kay [80]
3 years ago
9

When line sets have been altered, they may not be treated as self-contained systems of their own?

Mathematics
1 answer:
dmitriy555 [2]3 years ago
4 0
First of all, you may alter line sets. When you do, the nitrogen charge is released into the atmosphere.
You can then pressure the lines with a tracing gas in order to check if there are leaks in the connections you've made.
After the test is complete, you have to evacuate the line set before opening the valves to start the system.

Knowing this, we can say that line sets, when altered, may NOT be treated as self-contained systems of their own is a FALSE statement.
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7 0
3 years ago
X ^ 2 + 4x - 7 = 0<br><br> Solve using the Quadratic Formula
aalyn [17]

There's a special case of the quadratic formula called the Shakespeare Quadratic Formula (2b or -2b) that applies when the linear coefficient is even.

x^2-2Bx + C \textrm{ has zeros }x = B \pm\sqrt{B^2 - C}

If you're planning on solving a lot of quadratic equations quickly, it's good to know.

Here we have

x^2 + 4x - 7 = 0

so

x = -2 \pm \sqrt{2^2 - -7}

x = -2 \pm \sqrt{11}

8 0
3 years ago
Do y’all know this?
tatiyna

Answer:

Step-by-step explanation:

x=\sqrt{100+16}

x=\sqrt{116}

x=2\sqrt{29

7 0
3 years ago
Read 2 more answers
Identify the type of triangles
Margarita [4]

answer 6cm , 3cm , 6cm, this the answer

4 0
3 years ago
Read 2 more answers
Could you please help me
Dmitrij [34]
∠GBE = y (alternate angles)

∠DBG + ∠GBE = 180 (Adjacent angles on a straight line adds up to 180)
⇒ x + y = 180

∠DBG = ∠ABE (Vertially opposite angles)
⇒ x = 5y - 18

--------------------------------------------------
Solve for x and y :
--------------------------------------------------
x + y = 180 -------- (1)
x = 5y - 18 --------- (2)

Sub (2) into (1) :
5y - 18 + y = 180 
6x = 198
x = 33 --------- Sub into (1)
x + y = 180
33 + y = 180
y = 147

-----------------------------------------------------
Answer: x = 33°, y = 147°
-----------------------------------------------------

8 0
3 years ago
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