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3 years ago

Is this correct or Incorrect? Explain

Mathematics

1 answer:

Oduvanchick [21]3 years ago

7 0

Answer:

That all you would need to figure anything out. First thing you need to remember is that every triangle is 180 degrees total. Let's say one angle of a triangle 50 and the other is 35. If you were to add 5o and 35 together, you would get 85. Then I would do 180 - 85 and that would give you the remaining and missing angle. Hope this helps<3 !!

Step-by-step explanation:

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PB is a line segment on a number line. It has endpoints at -2 and 12. What is the coordinate of its midpoint.

Zielflug [23.3K]

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3 years ago

What is the factorization of 3x2 – 8x + 5?

ELEN [110]

we have

$3x^{2} -8x+5$

Equate the expression to zero to find the roots

$3x^{2} -8x+5=0$

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$3x^{2} -8x=-5$

Factor the leading coefficient

$3(x^{2} -(8x/3))=-5$

Complete the square. Remember to balance the equation by adding the same constants to each side.

$3(x^{2} -(8x/3)+(16/9))=-5+(16/3)$

$3(x^{2} -(8x/3)+(16/9))=(1/3)$

Rewrite as perfect squares

$3(x-(4x/3))^{2}=(1/3)$

$(x-(4x/3))^{2}=(1/9)$

square roots both sides

$(x-\frac{4}{3})=(+/-) \sqrt{\frac{1}{9}}$

$x=\frac{4}{3}(+/-) \frac{1}{3}$

the roots are

$x=\frac{4}{3}+ \frac{1}{3}=\frac{5}{3}$

$x=\frac{4}{3}- \frac{1}{3}=\frac{3}{3}=1$

$3x^{2} -8x+5=3(x-\frac{5}{3})(x-1)=(3x-5)(x-1)$

therefore

the answer is the option

$(3x-5)(x-1)$

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3 years ago

Read 2 more answers

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3 years ago

Arlene had some blackberries. She gave 216 to her teachers. Then she dropped 12. Later, she ate 18. Finally, she gave half of wh

Bingel [31]

Answer:the number of BlackBerry that Arlene had initially was 276

Step-by-step explanation:

Let x represent the number of BlackBerry that Arlene had initially.

She gave 216 to her teachers. This means that she is left with x - 216

Then she dropped 12. This means that she would be left with x - 216 - 12 = x - 228

Later, she ate 18. This means that she would be left with x - 228 - 18 = x - 246

Finally, she gave half of what she had to her friend. This means that the amount that she gave to her friend is (x - 246)/2 and the amount that she has left would be

(x - 246)/2

Now, she has 15. This means that

(x - 246)/2 = 15

x - 246 = 2 × 15 = 30

x = 30 + 246 = 276

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3 years ago

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ludmilkaskok [199]

Answer:

The answer is 60in^2

Step-by-step explanation:

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