Answer: A
Step-by-step explanation:
9514 1404 393
Answer:
3. x = 10
4. a = 8
Step-by-step explanation:
A reasonably simple rule to remember for secants outside the circle or chords inside the circle: <em>the product of the lengths from the point of intersection of the lines to the points of intersection of the circle is the same for each line</em>.
When the external line is tangent to the circle, the two points of intersection of the line with the circle are the same: the point of tangency. Effectively, this means the length is squared.
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3. For line QP, the product is 3(3+5) = 24.
For line QR, the product is 2(2+x). The rule above says these are equal:
24 = 2(2+x)
12 = 2+x . . . . . divide by 2
10 = x . . . . . . . subtract 2
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4. For line BC, the product is (a)(a) = a^2.
For line GC, the product is 4(12+4) = 64. The rule above says these are equal:
a^2 = 64
a = √64 . . . . take the square root
a = 8
Answer: 3b^4(b+5-6b^3)
Step-by-step explanation:
The value of V illustrated in the ratio V : 33= 7 : 11 is 21.
<h3>What is a ratio?</h3>
It should be noted that a ratio is simply used to show the relationship between the variables and illustrate the comparison.
In this case, the value of V can be illustrated as:.
V/33 = 7/11
Cross multiply
11V = 33 × 7
V = (33 × 7) / 11
V = 21
Therefore, V is 21.
Learn more about ratio on:
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