All categories

2 years ago

Special Pairs of angles and Classifying Triangles (PLEASE HELP)

Mathematics

1 answer:

lorasvet [3.4K]2 years ago

3 0

Answer for Practice 8-4:

1. Right, Scalene

2. Acute, Isosceles

3. Obtuse, Scalene

4. Isosceles

5. Scalene

6. Equilateral

7. Scalene

8. Acute

9. Obtuse

10. Right

11. Right

12. This cannot be done because a right triangle always has two acute angles (cannot be right-angled and obtuse-angled at the same time)

14. Can't be done because a scalene triangle has no congruent sides, while isosceles triangles have two equal sides and two equal angles.

You might be interested in

Factor the expression. k2 – 100h2 (k 10h)(k 10h) (k – 10h2)(k 10) (k 10h)(k – 10h) h2(k 10)(k – 10)

Mars2501 [29]

$Use\ a^2-b^2=(a-b)(a+b)\\\\k^2-100h^2=k^2-10^2h^2=k^2-(10h)^2=(k-10h)(k+10h)$

3 0

3 years ago

Read 2 more answers

Ada writes down at random a whole number larger than 1 and smaller than 11. Find the probability that it is....

stiv31 [10]

B even I hope it helpe

3 0

2 years ago

Read 2 more answers

Percent of change: $25;300% increase

larisa86 [58]

First, find 300% of 25.

Percentages are parts of 100, so divide 300 by 100.

300 / 100 = 3.

So multiply that to 25.

3 * 25 = 75

Add it to 25:

75 + 25 = $100

8 0

2 years ago

Read 2 more answers

Find y'' by implicit differentiation. 4x^3 + 5y^3 = 4

iVinArrow [24]

$\bf 4x^3+5y^3=4\implies 12x^2+15y^2\cfrac{dy}{dx}=0\implies 4x^2+5y^2\cfrac{dy}{dx}=0
\\\\\\
5y^2\cfrac{dy}{dx}=-4x^2\implies \boxed{\cfrac{dy}{dx}=\cfrac{-4x^2}{5y^2}}\\\\
-------------------------------\\\\
\cfrac{d^2y}{dx^2}=\stackrel{quotient~rule}{\cfrac{-8x(5y^2)~~-~~(-4x^2)(10y)\left( \frac{dy}{dx} \right)}{(5y^2)^2}}
\\\\\\
\cfrac{d^2y}{dx^2}=\cfrac{-40xy^2+(40x^2y)\left( \frac{-4x^2}{5y^2} \right)}{25y^4}$

$\bf \cfrac{d^2y}{dx^2}=\cfrac{-40xy^2+(40x^2y)\left( \frac{-4x^2}{5y^2} \right)}{25y^4}
\\\\\\
\cfrac{d^2y}{dx^2}=\cfrac{-40xy^2-\frac{160x^4y}{5y^2}}{25y^4}\implies 
\cfrac{d^2y}{dx^2}=\cfrac{\frac{-200xy^4-160x^4y}{5y^2}}{25y^4}
\\\\\\
\cfrac{d^2y}{dx^2}=\cfrac{-200xy^4-160x^4y}{(25y^4)(5y^2)}\implies 
\cfrac{d^2y}{dx^2}=\cfrac{-200xy^4-160x^4y}{125y^6}
\\\\\\
\cfrac{d^2y}{dx^2}=\cfrac{-40xy^4-32x^4y}{25y^6}$

6 0

2 years ago

An instant lottery ticket costs $2. Out of a total of 10,000 tickets printed for this lottery, 1000 tickets contain a prize of $

aleksandr82 [10.1K]

Answer:

The mean is -$0.4

The standard deviation is $54.78

The meaning of the mean is that on the average the players who play the game are expected to lose $0.4 per ticket.

The standard deviation means that each player differ from the mean by $54.78

Step-by-step explanation:

The step by step solution is attached as an image.

4 0

2 years ago