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Rom4ik [11]
3 years ago
6

Identify the similar triangles them find the x

Mathematics
1 answer:
Alex Ar [27]3 years ago
4 0

Answer:

ADB and ABC are similar

x = 8

Step-by-step explanation:

hypotenuse in ADB = \sqrt{4^2 + 2^2 } = \sqrt{20}

since two triangles are similar,

\frac{2+x}{\sqrt{20} } = \frac{\sqrt{20}}{2}

solving for x, x=8

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The choices are in the slope-intecept form: y = mx + b, where m is the slope and b is the y-intercept. Looking at the graph, the y-intercept is the point at which it intersects the y-axis. That would be -1. So, the answer is either  the 1st or 2nd choice. Next, we find the slope. Take 2 points that lie along the line. For example, points (1,2) and (2,5). Calculate for the slope.

m = (y2-y1)/(x2-x1)
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4 years ago
A quantity with an initial value of 3700 decays exponentially at a rate of 6% every 5
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Answer:

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Step-by-step explanation:

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2 years ago
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Anestetic [448]

Answer:

-12

Step-by-step explanation:

Let b = -1 and a = -3

The average rate of change = \frac{f(b) - f(a)}{b - a}

f(b) = f(-1) = 3(-1)^2 - 5 = 3 - 5 = -2

f(a) = f(-3) = 3(-3)^2 - 5 =27 - 5 = 22

f(b) - f(a) = -2 - 22 = -24

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\frac{f(b) - f(a)}{b - a} = -24/2 = -12

4 0
3 years ago
5 less than half a number, x<br><br> please help i will give you the brainliest answer
Karo-lina-s [1.5K]

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Step-by-step explanation:

Half of x , less 5. (5 less just means subtract)

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3 years ago
Find the m∠SAQ.<br><br><br> 44°<br><br><br> 46°<br><br><br> 57°<br><br><br> 77°
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Answer:

X=57

Step-by-step explanation:

77+46+X=180

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X=180-123

X=57

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3 years ago
Read 2 more answers
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