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3 years ago

15

If ∠BAC = 17° and ∠CED = 17° are the two triangles, ΔBAC and ΔCED similar? If so, by what criterion?

1 answer:

Fynjy0 [20]3 years ago

7 0

Yes, they are similar. The definition of similar triangles is two triangles that have congruent angles. All angles of a triangle must add up to 180. So, if you take the angles that you already have and add them up (17 plus 17 = 34), Then there is only one option of what the last angle is. To find the last angle you take 180 and subtract 34 which would give you 146.

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Graph the function f(x)=1/2 sqrt(x+1)

goldenfox [79]

The function is defined only if $x+1 \geq 0 \iff x \geq -1$ . So, the leftmost point is $x=-1$ , and we have

$f(-1)=\frac{1}{2}sqrt(-1+1) = 0$

So, the first point is $(-1,0)$

The three additional points seem arbitrary, so let's choose $x=0,1,2$ . We have:

$f(0)=\frac{1}{2}sqrt(0+1) = \frac{1}{2}$

So, the second point is $(0,\frac{1}{2})$

$f(1)=\frac{1}{2}sqrt(1+1) = \frac{\sqrt{2}}{2}$

So, the third point is $(1,\frac{\sqrt{2}}{2})$

$f(2)=\frac{1}{2}sqrt(2+1) = \frac{\sqrt{3}}{2}$

So, the fourth point is $(2,\frac{\sqrt{3}}{2})$

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3 years ago

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zimovet [89]

Answer:

-6

Step-by-step explanation:

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Schach [20]

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2 years ago

The school bus drove five more than twice as many miles in the afternoon as in morning. If the whole trip was 125 , how many mil

Elza [17]

Answer:

85

Step-by-step explanation:

x+2x+5=125

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