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Elena L [17]
3 years ago
9

How many lines of symmetry does a triangle have

Mathematics
1 answer:
kow [346]3 years ago
8 0

That depends on the shape of the triangle.

A scalene triangle has no lines of symmetry.
An isosceles triangle has one line of symmetry.
An equilateral triangle has three lines of symmetry.

If my hunch is correct, Watson, there is no triangle
with two and only two lines of symmetry.


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Which of the following polynomials is a binomial
Dima020 [189]
Hey there!

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(3x² – xy)

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5 0
3 years ago
Read 2 more answers
Find f '(a).<br> f(x) = 4x2 − 4x + 3
Vinvika [58]
Use the power rule
  d(x^n)/dx = n·x^(n-1)
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3 0
3 years ago
Jason went to the post office and bought both 41-cent stamps and 26-cent postcards and spent $10.28. The number of stamps was 4
Charra [1.4K]
<h3>Jason bought 20 stamps of $0.41 each and 8 postcards of $0.26 each.</h3>

<em><u>Solution:</u></em>

Let stamps be s and postcards be p

Given that,

The number of stamps was 4 more than twice the number of postcards

s = 4 + 2p -------- eqn 1

Jason bought both 41-cent stamps and 26-cent postcards and spent $10.28

41 cent = $ 0.41

26 cent = $ 0.26

Therefore,

s \times 0.41 + p \times 0.26 = 10.28

0.41s + 0.26p = 10.28 --------- eqn 2

Substitute eqn 1 in eqn 2

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1.08p = 10.28 - 1.64

1.08p = 8.64

Divide both sides by 1.08

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Thus Jason bought 20 stamps and 8 post cards

8 0
3 years ago
Solve the equation 4n-18=52
muminat
Answer:
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4 0
3 years ago
Read 2 more answers
Write a quadratic function in standard form with zeros 1 and -10
Licemer1 [7]

Answer:

f(x)=x^2+9x-10

Step-by-step explanation:

<u>Standard Form of Quadratic Function</u>

The standard form of a quadratic function is:

f(x)=ax^2+bx+c

where a,b, and c are constants.

The factored form of a quadratic equation is:

f(x)=a(x-\alpha)(x-\beta)

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We know the zeros of the function are 1 and -10. The function is:

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Operating:

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f(x)=a(x^2+9x-10)

Since we are not given any more restrictions, we can choose the value of a=1, thus. the required function is:

\boxed{f(x)=x^2+9x-10}

6 0
3 years ago
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