Answer:
8 2/3 units.
Step-by-step explanation:
As bothe the circles and the arcs are congruent, the chords QR and LN are also congruent.
So LN = QR
x + 7 = 4x + 2
7 - 2 = 4x - x
3x = 5
x = 5/3.
Therefore the length of QR = 4x + 2
= 4(5/3) + 2
= 20/3 + 6/3
= 26/3
= 8 2/3 units.
Answer:
Step-by-step explanation:
Option A
9.21 * 10³ = 9,210 ≠ 921
Option A is FALSE.
Option B
9.21 * 10¹ = 92.1
Option B is TRUE.
Option C
0.921 * 100 = 92.1 ≠ 921
Option C is FALSE
Option D
0.921 * 10⁴ = 9,210
Option D is TRUE
Option E
0.0921 * 10² = 9.21
Option E is TRUE
Let unknown number be x.
Given,
7x - 8 = 3x + 4
4x = 12
x = 3
Hence, the number is 3.
Answer:
Step-by-step explanation:
we know that
The circumference of a circle is equal to
where
D is the diameter
in this problem we have
substitute
-----> equation that give the value of the circumference
Y = 3x
so
if x = 5 then y = 15
if x = 10 then y = 30
so a = 10 and b = 15
answer is B. second choice
a = 10 and b = 15
