Answer:
x = 3.5
Step-by-step explanation:
(10x + 15) = 30
10x + 15 = 30 * 
10x + 15 = 10 * 5
10x + 15 = 50 {Subtract 15 form both sides}
10x = 50 -15
10x = 35 {Divide both sides bt 10}
10x/10 = 35/10
x = 3.5
Answer: A -22 can be a rational number as well as a integer
Step-by-step explanation:
Whole Number: A whole number is not a fraction or a decimal so a example would be: 43 or 85 or 1 or 3. Zero is not a whole number. Negative are not whole numbers
Rational number: A rational number is a number that can be expressed as a fraction or a decimal. Like 33 can be 33/1. Most numbers are rational. Zero is a rational number.
Integers: A integer is not a fraction or a decimal. its a positive or negative number. Example: 1 or -5 or 85 or -445. there is still some arguments about if zero is a integer.
Irrational numbers: A irrational number cannot be expressed as a ratio. So for example pi: 3.141592653589......(it keeps on going, we haven't even gotten to the end because its infinite).
Natural numbers: Natural numbers are positive numbers. Example: 1,6,3,4,62,3 etc. Sometimes zero is a natural number.
Hope I helped,
:)
Step-by-step explanation:
with the use of Pythagoras theorem you can find each side of one triangle
I hope this helps!
(gof)(-3) means the composition of two functions at x = -3.
(gof)(-3) can also be expressed as g(f(-3))
So, first we find f(-3)
f(x) = x² + 5
f(-3) = 9 + 5 = 14
g(f(-3)) = g(14)
g(14) = (14+5)/14 = 19/14
Thus, option C gives the correct answer
