Answer:
18
Step-by-step explanation:
we start to write a few iterations of 6 and 9:
6, 12, 18, 24, 30, 36, 42, 48, 54, 60, ...
9, 18, 27, 36, 45, 54, 63, 72, 81, 90, ...
the LCD is the least repeating number in both sequences. It is 18
1 tenth of 70 is 7
caz 7 tens make 70
hope it helps
Answer:
See below.
Step-by-step explanation:
x^2 = y + 16
4y - 1 = 7x
are the 2 equations. (answer)
From the second equation
4y = 7x + 1
y = 7/4 x + 1/4
Substituting in the first equation:
7/4x + 1/4 + 16 = x^2
x^2 - 7/4 x - 16 - 1/4 = 0
x^2 - 7/4 x - 16 1/4 = 0
Multiplying though by 4
4x^2 - 7x - 65 = 0
Using the ac method to solve this 4 * -65 = -260 and we need factors of this to add up to -7. -20 and 13 look good so we write:
4x^2 - 20x + 13x - 65 = 0
Fatcor by grouping:
4x(x - 5) + 13(x - 5) = 0
(4x + 13)(x - 5) = 0
So the the roots are 5, -3.25
To find the values of y we substitute these values of x into the second equation:
x = 5: 4y - 1 = 7*542y = 36
y = 9.
x = -3.25:
4y - 1 = 7*-3.25
4y = (7 * -3.25) + 1
y = -5.44.
So the solutions are (5, 9) and (-3.25, -5.44) (Answer)
Answer:
Yo I think we're in the same class.... wish i knew the answer lol
Step-by-step explanation:
<h2>
Answer:</h2>
20. 
21. 
22. 
<h2>Additional information:</h2>
Vertical angle means opposite angles.
- It states that If two lines intersect each other, then the vertically opposite angles are equal.
For eg :- In this diagram,
Linear pair means to form 180°.
- It states that the two axioms above together is called the Linear Pair Axiom.
- If the sum of two adjacent angles is 180°, if non-common arms of the angles form a line.
For eg :- In this diagram,
