Answer:
sum of twice a number and three is 21
2x + 3 = 21
x = 9
Answer:
The difference between 4/9 and -5/9 is that -5/9 is a negative fraction while 4/9 is a positive fraction.
Step-by-step explanation:
If we observe closely the given, we can note that the
terms given are perfect cubes. That is,
<span> x^3 is
cube of x and</span>
<span> 343 is
cube of 7</span>
Hence, the expression is the sum of two cubes. For the
sum of cubes, we follow the following rule for the factoring:
<span> a^3 + b^3 = (a +
b)(a^2 – ab + b^2)</span>
Applying the rule to the given, the factors would be:
<span> X^3 + 373 = (x +
7)(x^2 – 7x + 49)</span>
Answer:
7
Step-by-step explanation:
Answer:
Angle 2 is 35 degrees
Step-by-step explanation:
Angle 2 is 35 degrees because of the alternate interior angles theorem.
