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fenix001 [56]
3 years ago
9

Which figure has exactly three lines of symmetry?

Mathematics
2 answers:
Maurinko [17]3 years ago
8 0

Hey there!!

( A ) - right triangle - this triangle has one line of symmetry

( B ) - regular pentagon - this shape has five lines of symmetry

( C ) - Square - this shape has four lines of symmetry

( D ) - equilateral triangle - this shape three lines of symmetry

Hence the answer is option ( D )

Hope my answer helps!

astra-53 [7]3 years ago
5 0

Answer:

the answer is D equilateral triangle

Step-by-step explanation:

In geometry, an equilateral triangle is a triangle in which all three sides are equal if you look at the triangle you can see 3 sides all of them are the same

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Lubov Fominskaja [6]

Answer:

The expression is unclear so:

If the denominator is \sqrt{x}-1 then your set of existence is given by

\left \{ {{x\ge0} \atop {x\ne1}} \right.

since you want the quantity inside both square roots to be positive (and it happens for both to be simply x\ge0 and you don't want a zero at the denominator so you have to rule out 1.

If the square root includes the whole denominator \sqrt{x-1} the condition becomes \left \{ {{x\ge0} \atop {x>1}} \right.

where you don't include the extreme in the second condition since, again, you don't want to divide by 0. The answer in this case is simply x>1 since values between 0 and 1 will give a negative root which is not a real number.

4 0
3 years ago
What is the solution of sqrtx^2+49 = x+5?​
Lady_Fox [76]

Answer:

<h2>x = 12/5</h2>

Step-by-step explanation:

√x² + 49 = x + 5

Square both sides

(√x² + 49)² = ( x + 5)²

x² + 49 = x² + 10x + 25

Simplify

10x = 49 - 25

10x = 24

Divide both sides by 10

<h3>x = 12/5</h3>

Hope this helps you

5 0
3 years ago
I need help please.(will give brainliest)
kolezko [41]

Answer:

\sin 68^{\circ}=\frac{28}{x}

Step-by-step explanation:

In any triangle, the sine of an angle is equal to its opposite side divided by the hypotenuse, or longest side, of the triangle (o/h).

Therefore, we have:

\boxed{\sin 68^{\circ}=\frac{28}{x}}

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3 years ago
If I buy Brainly tutor, will the tutors help with geometry questions?
choli [55]

Answer:

Brainly Tutor provides direct 1:1 help from an expert who gives step-by-step explanations on demand, rather than posting a question while waiting for another Brainly user to provide the answer.

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2 years ago
If Consider today’s stock listing for Enam Telecom, shown below.
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The answer is B. $0.72
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3 years ago
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