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____ [38]
3 years ago
15

What is the 30 60 90 rule and the 45 45 90 rule (to do with triangles)

Mathematics
1 answer:
Sphinxa [80]3 years ago
7 0
The 30,60,90 - the hypotenuse is equal to twice the length of the shorter leg , the hypotenuse side =2x , the shortest side =x and the straight side is x square root 3
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The function g(x) = –3x2 – 36x – 60 written in vertex form is g(x) = –3(x + 6)2 + 48. Which is one of the transformations applie
navik [9.2K]
The vertex form of the function gives the vertex as (-6,48). The vertex of f(x)=x^2 is (0,0) so from this information, the vertex is moved LEFT 6 and UP 48. This cancels out two options. The coefficient -3 tells us that the graph is flipped or reflected over the x-axis (negative sign flips graph) and that all y-values will be 3 times as large. Larger y-values for the same x inputs makes the graph narrower.
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3 years ago
Use the graph below to answer the question that follows:
snow_lady [41]

Answer:

  D)  Amplitude: 2; period: π; midline: y = 1

Step-by-step explanation:

The question is much more easily answered from the graph than from the description of the graph.

The amplitude is the extent of the peak above the midline (2), or half the peak-to-peak value (4/2=2). The midline is the line halfway between the peaks (1). The period is the horizontal distance between peaks of the same polarity (π).

7 0
3 years ago
Read 2 more answers
Solve for x: V x + 6 = 7​
MrRissso [65]

Answer:

x > 0, if not 4/x < 0

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Step-by-step explanation:

6 0
3 years ago
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1. -222=-2x-3(4x+18)<br>2. 154=2x-6(-2x-14)<br>solve for x​
Aleksandr [31]

Answer:

1. x = 12

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Step-by-step explanation:

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154 = 14x + 84

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Twenty five subtracted by six tenths times "x"
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3 years ago
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