D.
It's D because it's ELAVATION. The plane is going UP.
1.0636363636363.... = 117/110
Answer:
B complementary angles
Step-by-step explanation:
ED is a line.
Angles EAB and DAB are a linear pair, so they are supplementary.
Angle EAB is a right angle, so angle DAB is also a right angle.
The measure of angle DAB is 90 degrees.
The sum of the measures of angles a and b is 90 degrees.
That makes <a and <b complementary angles.
<u>Given</u>:
The number 12 is the geometric mean between 3 and a number x.
We need to determine the value of x.
<u>Value of x:</u>
Since, we know that the geometric mean is the square root of the product of two numbers.
Hence, we have;
where a and b are two positive numbers.
Substituting Geometric mean = 12, a = 3 and b = x, we get;
Squaring on both sides, we get;
Dividing both sides of the equation by 3, we have;
Thus, the value of x is 48.
Answer:
<u>The answer is 1. 64 and 2. 60</u>
Step-by-step explanation:
Question 7. 75% of what number is 48?
Number = x
75%x = 48
3x/4 = 48 (75% = 3/4)
3x = 192 (Multiplying by 4 at both sides of the equation)
<u>x = 64</u> (Dividing by 3 at both sides of the equation)
<u>Part 75 Whole 48 Part 100 Whole 64</u>
Question 8. 120% of what number is 72?
Number = x
120%x = 72
12x/10 = 72 (120% = 12/10)
12x = 720 (Multiplying by 10 at both sides of the equation)
<u>x = 60</u> (Dividing by 12 at both sides of the equation)
<u>Part 120 Whole 72 Part 100 Whole 60</u>