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harkovskaia [24]
3 years ago
8

What is the missing constant term in the perfect square that starts with x 2 +14x

Mathematics
1 answer:
77julia77 [94]3 years ago
8 0

Okay, let me explain.

Basically, you need to complete the square.

So you have, x^{2}+14x+__________ to equal a perfect square.


Your middle term is 14. So, what you need to do is divide fourteen by 2 which equals 7. What does 7*7 or 7 squared equal? It equals 49.


The missing constant term is 49.


I hope this helped; feel free to ask any follow-up questions.

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Computer keyboard failures are due to faulty electrical connects (8%) or mechanical defects (92%). Mechanical defects are relate
sdas [7]

Solution :

Faulty electrical connects = P(A) = 0.80

Mechanical defects = P(B) = 0.92

Mechanical defects are related to loose keys = P(C/B) = 0.27

Improper assembly = P(D/B) = 0.73

Defective wires  = P(E/A) = 0.35

Improper connections = P(F/A) = 0.13

Poorly welded wires = P(G/A) = 0.52

Now, the probability due to loose keys = 0.27 x 0.92 = 0.2484

Improperly connected = 0.13 x 0.80 = 0.1040

Poorly welded wires = 0.52 x 0.80 = 0.4160

So, the probability that a failure is due to improperly connected or poorly welded wires = 0.1040 + 0.4160

                       = 0.5200

8 0
3 years ago
Write the following proportion 8 is to 64 as is to
padilas [110]
8:64 = 1:8 (divide both sides by 8)
8 0
3 years ago
In the question, "35 is what percent of 40?" what is the 35?
schepotkina [342]

Answer:

35 is the 'is' and 40 is the 'of'

Step-by-step explanation:

is/of = %/100

35/40 = x/100

cross-multiply to get:

40x = 3500

x = 3500/40

x = 87.5

4 0
3 years ago
Find an approximate equation y=ab^x with the coordinates (0, 4) (3, 95)
bogdanovich [222]
We have y=ab^{x}

Plug in (0, 4):
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So we now have a

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⇒b=\sqrt[3]{\frac{95}{4}}
which is approximately 2.874

So we get
y=4(\sqrt[3]{\frac{95}{4}})^{x}
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y=4*2.874^{x}
7 0
3 years ago
What information does the ordered pair (3, 87) represent?
mafiozo [28]

<span>The 3 (x-coordinate) indicates that from the origin (0,0) in the cartesian plane, you have traveled four units to the right along the x-axis(the horizontal axis). </span>

<span>The 87 indicates that you traveled 87 units up in the y-axis(vertical axis), in line with the point 3 in the x-axis.This number is the y-coordinate, the second number in the ordered pair. </span>

8 0
3 years ago
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