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2 years ago

Is Triangle ABC a right triangle? Why or why not?

Mathematics

2 answers:

Inessa [10]2 years ago

7 0

D. Yes, Triangle ABC is a right triangle by the Pythagorean theorem.

vfiekz [6]2 years ago

5 0

Answer:

Option B

Step-by-step explanation:

If triangle ABC is a right angle triangle then it should follow the Pythagoras theorem.

Hypotenuse² = base² + height²

So base² + height² = 10² + 14²

= 100 + 196

= 296

So Hypotenuse² = 296

Hypotenuse = √296

= $\sqrt[2]{74}$

Therefore, Option B will be the answer.

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Solve quadratic equation 10x^2+x-2=0

zhuklara [117]

Answer:

$\{-\frac{1}{2} \} \cup \{\frac{2}{5}\}$

Step-by-step explanation:

$10x^2 + x - 2 = 0; \\ a = 10, b = 1, c = -2; \\ D = b^2 - 4ac = 1^2 - 4 * 10 * (-2) = 1 + 80 = 81 = 9^2, > 0; \\ x_{1, 2} = \frac{-b \pm \sqrt{D}}{2a} = \frac{-1 \pm \sqrt{9^2}}{2 * 10} = \frac{-1 \pm 9}{20} = \left \ [ {{\frac{-1 - 9}{20} = -\frac{10}{20} = -\frac{1}{2} } \atop {\frac{-1 + 9}{20} = \frac{8}{20} = \frac{2}{5}}} \right.$

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2 years ago

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JulsSmile [24]

Answer: picture pleasee

Step-by-step explanation:

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2 years ago

Roger Brown works for the sanitation department. He earns a salary of $721.00 biweekly. His boss gave him

liq [111]

Answer:

2249 dollars more

Step-by-step explanation:

52 weeks in one year so divide by 2 and then multiply by 721 and then take that amount and dubtract the new salary 20.995 and subtract the previous annual amount and then boom 2295 more

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2 years ago

What is the domain of the function;<br> y= (x-1)2 -2

valkas [14]

It should be 2 but i’m not positive

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2 years ago

10(2.1q -2) + (7.5q+18)

aliina [53]

Answer:

Simplify the expression.

28.5q−2

Step-by-step explanation:

i think this what you would like

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2 years ago