Answer:
$356.00
Step-by-step explanation:
If d represents the discounted price, and p is the original price, you have ...
d = p - 20% × p = p(1 -20%) = 0.80p
Then the original price is ...
p = d/0.80 . . . . . divide by the coefficient of p
p = $284.80/0.80 = $356.00
The price before the discount was $356.00.
Answer:-0.868
Step-by-step explanation: Find the number that is in the thousdants place which is the first 7 and look one place to the right for the rounding diget which is the next 7, and if the last 7 is lower that 5 round down and if it is greater than 5 round up.
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Answer:
t = 4 s
Step-by-step explanation
We can infer the origin from the t⁰ term of the quadratic as being 192 feet above the ground. Initial velocity is 16 ft/s from the t¹ term, gravity is -32 ft/s² from the t² term
0 = -16t² + 16t + 192
0 = -t² + t + 12
0 = t² - t - 12
0 = (t - 4)(t + 3)
so either
t - 4 = 0
t = 4 s
or
t + 3 = 0
t = -3 s which we ignore as it occurs before the ball is released.
Answer:
z = 156
Step-by-step explanation:
y² = 65²-25² = 4225 - 625 = 3600
(x+25)²-65² = z²
x²+50x+625-4225 = z²
x²+50x-3600 = z² ....(1)
x²+60² = z²
x²+3600 = z² ....(2)
(1)-(2): 50x - 7200 = 0
50x = 7200
x = 144
check: x² + y² = z² 144² + 60² = 24336 = z² z = 156
(25+144)²-65² = z² = 28561 - 4225 = 24336 z = 156
If a diameter intersects a chord of a circle at a perpendicular then the chord is bisected.
<h3>What is the relation between the chord and diameter of a circle?</h3>
- The segments of a circle whose endpoints are on its perimeter are called chords.
- A circle's diameter is the chord that passes across its center.
- The circle's longest chord equals its diameter.
- Any line that is perpendicular to a chord on the circle cuts it in half and goes through the center.
The solution to the problem:
A circle's chord is intersected perpendicularly by its diameter, which also passes through the center of the circle. The chord and diameter are perpendicular. Any line that is perpendicular to a chord on the circle and passes through its center divides it. The chord is divided equally by the diameter.
Therefore, the chord is bisected.
Learn more about diameter and chord at: brainly.com/question/12934647
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