9514 1404 393
Answer:
(a) x = 22
(b) 46°
(c) 44°
(d) 180°
Step-by-step explanation:
Because the sum of the interior angles of a triangle is 180°, we know that the sum of the acute angles in a right triangle is 90°.
<h3>(a) </h3>
The sum of the marked acute angles is 90°.
2x +(3x -20) = 90
5x = 110 . . . . . . . . . . add 20, collect terms
x = 22 . . . . . . . . . divide by 5
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<h3>(b) </h3>
∠CBA = (3x -20)° = (3·22 -20)° = 46°
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<h3>(c)</h3>
∠CAB = 2x° = 2(22)° = 44°
__
<h3>(d)</h3>
The sum of a triangle's interior angles is 180°.
So only 1/10 of 4000 markers arrived.
So 1/10, or 0.1 of 4000, can be found by multiplying 1/10 by 4000.
1/10 * 4000 = 400
So she received 400 markers.
Answer:
A= 3,B = 2
Hope it helps you
if yes mark me brainliest
Answer:
128189196964136363133131267217131394450
Step-by-step explanation:
hope this is helpful
Answer:
x^2 + (y+1)^2 = 10^2
Step-by-step explanation:
Centre (p,q) = (0, -1)
radius, r = 10
General Equation of a circle
(x-p)^2 + (y-q)^2 = r^2
(x-0)^2 + (y- -1)^2 = 10^2
x^2 + (y+1)^2 = 10^2
