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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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I need the answer and explain please and thank you.
Dafna11 [192]
Use cos sin and tan and looks up rules of cos sin tan and it will show you the rules and use those methods to plug into your equation
6 0
3 years ago
Read 2 more answers
-5/6x-7/30x+1/5x-52 please help me guys cuz imk not good with math
Marina CMI [18]

Answer:

\frac{-13}{15} x-52

Step-by-step explanation:

\frac{-5}{6}x-\frac{7}{30}x+\frac{1}{5}x-52

=\frac{-5}{6}x+\frac{-7}{30}x+\frac{1}{5}x+-52

Combine Like Terms:

=\frac{-5}{6}x+\frac{-7}{30}x+\frac{1}{5}x+-52

=(\frac{-5}{6}x+\frac{-7}{30}x+\frac{1}{5}x)+(-52)

=\frac{-13}{15}x+-52

Therefore, \frac{-13}{15}x+-52 will be your final answer.

7 0
3 years ago
If Lana deposits $500 into a savings account that gains simple interest at
Oksana_A [137]

Answer:

10 years

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 2%/100 = 0.02 per year,

then, solving our equation

t = 100 / ( 500 × 0.02 ) = 10

t = 10 years

The time required to

accumulate simple interest of $ 100.00

from a principal of $ 500.00

at an interest rate of 2% per year

is 10 years.

3 0
3 years ago
Find the median for the data set: 3,12,35,12,9,6,3,3,3,3,9,3
elena-s [515]
I’m pretty sure the answer is 6
4 0
4 years ago
Jean noticed that the tar pit bubbled more on warm days than on cool days or at night. Is the air temperature the dependent vari
andreev551 [17]
It's indepentent. In fact, the tar pit's temperature DEPENDS (dependent variable) by the air's temperature (independent variable).
6 0
3 years ago
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