Answer:
x = 2.3
Measure of arc XY = 76° ⇒ answer (D)
Step-by-step explanation:
∵ arc XY congruent to arc YZ
∴ XY = YZ ⇒ chords subtended by equal arcs are equal
∴ 3x = 6.9 ⇒ x = 6.9/3
∴ x = 2.3
In ΔOXY
∵ OX = OY radii
∴ m∠OXY = m∠OYX
∵ m∠OXY = 52°
∴ m∠OYX = 52°
∵ The sum of angles of a Δ = 180°
∴ m∠XOY = 180 - 2 × 52 = 76°
∵ ∠XOY is central angle subtended by arc XY
∴ The measure of arc XY = m∠XOY = 76°
I believe the answer would be 16
Hope this helped !
Answer:
n=5/3
Step-by-step explanation:
In order for the two lines to be perpendicular the slopes have to be flipped and so do the signs so the slope of the unknown value has to be -1/3
all you do is -1/3+2=5/3
5/3-2=-1/3 which make the two lines perpendicular
sorry if this doesnt make sense its hard to explain it virtually
Answer:
45 min
Step-by-step explanation:
Here,
the we take the work as W and Alan's speed as A and Zack's speed as Z.
A = 2Z
W = 30 ( A+Z)
if the time for Alan to done cleaning alone is t then t = W ÷ A
t = ( 30 (A+(A÷2)))÷ A
t = 45 min
I am done .
Hello!
452.84 rounded to the nearest hundreds place is 
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452.84
The number in the hundreds place is 4. When the question asks you to round to the nearest hundreds place, it simply means to round <em>that number </em>either up or down. For example, if the number were 449.84, you would round to 400, as that would be the nearest hundred. Since the digit in the tens place was 5, we rounded <em>up. </em>
