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BabaBlast [244]
4 years ago
6

What is (x – 3)(2x + 1)

Mathematics
1 answer:
umka21 [38]4 years ago
3 0

Answer:

(x – 3)(2x + 1)

Expand the terms

We get

2x² + x - 6x - 3

Final answer

2x² - 5x - 3

Hope this helps you.

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188 is 150% of what number?
Aleksandr-060686 [28]
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Don't Memorise
Feb 16, 2016
The number
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6 0
3 years ago
Read 2 more answers
What is the domain of y = log5^x
professor190 [17]

Answer:

The answer is all real numbers

5 0
3 years ago
Eleanor is a faster runner than Jeremy by more than 10 seconds. Jeremy takes 22 seconds longer to run a particular course than N
gulaghasi [49]

Answer: t = 340+22-10

Step-by-step explanation:

Hi, to answer this question we have to analyze each runner:

Norma takes 340 seconds to run the course.  

Norma's time = 340

Jeremy takes 22 seconds longer to run a particular course than Norma. Since he takes seconds longer, we have to add that amount to Norma’s time:

Jeremy's time = Norma's time +22 = 340+22

Eleanor is a faster runner than Jeremy by more than 10 seconds. Since she is faster, we have to subtract 10 seconds to Jeremy's time to obtain Eleanor's time (t)

t = Jeremy's time - 10

t = 340+22-10  (seconds)

3 0
4 years ago
Prove that when x is greater than one a triangle with side lengths a equals x squared minus one and c equals x squared plus one
gulaghasi [49]

Using the Pythagorean Theorem,

a^2+b^2=c^2

(See attachment)

Let us substitute the values and solve for b in terms of x.

(x^2-1)^2+b^2=(x^2+1)^2

Grouping the  x terms on one side gives,

b^2=(x^2+1)^2-(x^2-1)^2

We now apply difference of two squares to obtain,

b^2=((x^2+1-(x^2-1))(x^2+1+(x^2-1))

b^2=((x^2+1-x^2+1))(x^2+1+x^2-1))


b^2=(2)(2x^2)

b^2=4x^2


b=\sqrt{4x^2}


b=2x,

Testing for some few values greater than 1, we can generate the Pythagorean triples as follows;

When x=2

a=2^2-1=3

b=2(1)=2

c=2^2 +1=5


When x=3

a=3^2 -1=8

b=2(3)=6

c=3^2 +1=10

7 0
4 years ago
How do you graph x=21
Strike441 [17]
Use cymath.com that would help you know how to graph it  
 
5 0
4 years ago
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