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Tom [10]
3 years ago
7

If 4 is a root of the quadratic equation

Mathematics
1 answer:
Citrus2011 [14]3 years ago
5 0

Answer:

Step-by-step explanation:

x²-bx-22=0

put x=4

4²-4b-22=0

16-4b-22=0

-4b-6=0

2b+3=0

b=-3/2

x²-3/2x-22=0

2x²-3x-44=0

2x²-11x+8x-44=0

x(2x-11)-4(2x-11)=0

(2x-11)(x-4)

roots are 11/2,4

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NeX [460]

Answer:

hope it's help you ok have a good day

8 0
3 years ago
Lincoln is seeking a loan with a simple interest rate of 8% per year. If he wants to borrow $5000, then how much will he be char
babymother [125]

Answer:

Lincoln will be charged <em>$9,600.</em>

Step-by-step explanation:

To find the answer we will first turn<em> 8% into a decimal.</em>  8 ÷ 100 = <em>0.08</em>.  Now <em>multiply 0.08 by $5,000</em> and we get <em>$400.</em>  then <em>multiply $400 by 24</em> and we get $9,600.  Therefore, <em>$9,600 is our answer.</em>

8 0
3 years ago
I need help with this please guys it’s due today
mojhsa [17]
The answer is

4,1


...
8 0
3 years ago
Read 2 more answers
a company's income before interest expense and taxes is $250,000 and its interest expense is $100,000. its time interest earned
meriva

Answer:

Its times interest earned ratio is 2.5

Step-by-step explanation:

Math explanation: 250,000 divided by 100,000 is 2.5

Economic explanation: The amount of FICA tax that employers must pay is twice the amount of the FICA taxes withheld from their employees.

8 0
4 years ago
Which expression has the smallest value?
Soloha48 [4]
The expression with the smallest value is D
7 0
3 years ago
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