Answer:
x = 6, z = 5.66 to nearest hundredth.
y = 90 degrees.
Step-by-step explanation:
From the chord intersection theorem 12*4 = 8 * x
So x = 6.
By the tangent / chord theorem:
z^2 = 2 * (12+4)
z^2 = 32
z = 5.66.
I'm not 100% sure of the value of angle y but I think its
1/2(100 + 80) = 90 degrees.
I'll try and check that out.
Yes that is right.
Answer: = −
6
.
5
Step-by-step explanation:
Step-by-step explanation:
Z - 0.72 = - 2.5
Z = - 2.5 + 0.72 = - 1.78
Z = - 1.78
There will be 450 students that will buy lunch today.
Fraction of students that'll buy lunch = 5/8.
Number of students in the school = 720
Number of students that'll buy lunch will now be = 5/8 × 720 = 450
Therefore, 450 students will buy lunch today.
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