(From top to bottom) wrong, right, right, right, wrong. This is because a irrational*an irrational number is rational, but a rational*an irrational is an irrational number
Answer:
32
Step-by-step explanation:
let number=b
twice a number=2b
Condition:
2b+13=75
2b=75-13
2b=62
b=62/2
b=31
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What are the questions on 7 and 8?
Answer:
<h2>
</h2>
Step-by-step explanation:
To find the value of x we can use either sine or cosine
Using cosine we have
<h3>
</h3>
From the question
x is the hypotenuse
4 is the adjacent
We have
<h3>
</h3>
We have the final answer as
<h3>
</h3>
Hope this helps you
The easiest method of multiplying polynomials, in my experience, is the FOIL method. Honestly, I couldn't tell you what the letters stand for anymore, but I definitely remember how to do it. It's just distribution.
(6x+1)(5x+8)
Multiply the 6x by 5x and 8, then the 1 by 5x and 8:
30x²+48x+5x+8
Then combine like terms:
30x²+53x+8
