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e-lub [12.9K]
3 years ago
7

What term should be added to create a perfect square trinomial ??

Mathematics
1 answer:
12345 [234]3 years ago
7 0
Yes you are correct. You take half of the x coefficient 18 to get 9, then you square 9 to get 81

x^2+18x+81 is a perfect square trinomial which factors to (x+9)^2
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(-16,-4),(8,-2) in a graph NOWW!!!!
Charra [1.4K]

Answer:

Hope this helps

6 0
3 years ago
A small business has 50 total employees, 15 of which are full-time. What percent of the employees are part-time?
12345 [234]

Answer:

70%

Step-by-step explanation:

50-15 =35

35/50 = 70/100

4 0
3 years ago
A 14 gram sample of a substance that's used to preserve fruit and vegetables has a k-value of 0.1092. Find the substance's half-
nignag [31]

Answer:

t = 6.3

Step-by-step explanation:

N=Noe^(-kt)

No = 14 grams

k = .1092

We want to find t when N = 7 or 1/2 of 14

N=Noe^(-kt)

7 = 14 e ^ (-.1092t)

Divide each side by 14

1/2 = e ^ (-.1092t)

take the natural log of each side

ln (1/2) = ln e ^ (-.1092t)

ln (1/2) = -.1092t

Divide each side by -.1092

ln (1/2)/ -.1092 = t

t≈6.3475

Rounding to the nearest tenth

t = 6.3

5 0
3 years ago
Solve the system of linear equations by graphing, round the solution to the nearest tenth.
algol [13]
For this case we have the following system of equations:
 y = -0.25x + 4.7

y = 4.9x-1.64
 When solving the problem graphically we must take into account the following:
 1) The solution of the system of equations is given by the intersection of both functions.
 2) The solution is an ordered pair of the form (x, y)
 For this case we observe that the solution is given by:
 (x, y) = (1.23, 4.39)

 Note: see attached image.
 Answer:
 
The approximate solution to the system is (1.23, 4.39)

6 0
3 years ago
Read 2 more answers
What is the area of the Rhombus?
dusya [7]

Answer:

b

Step-by-step explanation:

8 0
3 years ago
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