All categories

2 years ago

A triangle has angle measurements of 89°, 78°, and 13°. What kind of triangle is it?

Mathematics

2 answers:

amid [387]2 years ago

4 0

Answer:

acute triangle

Step-by-step explanation:

For an acute, the angles should be less than 90°

right should be equal to 90°

obtuse, angles should be less than 180 but greater than 90

koban [17]2 years ago

4 0

Answer:

3. acute

Step-by-step explanation:

The triangle is an acute angle as all its measures are less than (<) 90°.

89° < 90°

78° < 90°

13° < 90°

=》Triangle → c. acute

You might be interested in

<img src="https://tex.z-dn.net/?f=%5Cfrac%7B12x%7D%7B2x-3x-10%7D%20-%20%5Cfrac%7Bx%7D%7B%28x-5%29%7D" id="TexFormula1" title="\f

uysha [10]

Answer:

Step-by-step explanation:

$\frac{12x}{2x-3x-10}-\frac{x}{x-5}=\frac{12x}{-x-10}-\frac{x}{x-5}\\\\=\frac{12x}{-(x+10)}-\frac{x}{x-5}\\\\=\frac{-12x}{x+10}-\frac{x}{x-5}\\\\=\frac{-12x*(x-5)}{(x+10)*(x-5)}-\frac{x*(x+10)}{(x-5(x+10)}\\\\=\frac{-12x*x-5*(-12x)}{(x+10)(x-5)}-\frac{x*x+x*10}{(x-5)(x+10)}\\\\=\frac{-12x^{2}+60x}{(x+10)(x-5)}-\frac{x^{2}+10x}{(x-5)(x+10)}\\\\=\frac{-12x^{2}+60x-(x^{2}+10x)}{(x+10)(x-5)}\\\\=\frac{-12x^{2} + 60x - x^{2}-10x}{x^{2}+5x-50}\\\\=\frac{-13x^{2}+50x}{x^{2}+5x-50}$

8 0

3 years ago

Read 2 more answers

HELP ASAP WILL MARK BRAINLIEST

OLga [1]

Answer:

A- about 43.98

B- about 17.59

C- 32.99

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

A criminal has escaped in a train wreck. The police believe he could have traveled no more than 7 mi in any direction from the w

adelina 88 [10]

Answer:

A = 153.94 sq mi

Step-by-step explanation:

In this scenario, we would be starting from the center point and searching the area of a square since the distance in every direction would the same 7 mi. This 7-mile distance would be our radius in this scenario. We now need to use the formula for the Area of a circle to calculate the search area. This formula is the following

A = $\pi r^{2}$

A = $\pi 7^{2}$

A = $\pi 49$

A = 153.94 sq mi

A total of 153.94 square miles must be searched.

5 0

3 years ago

(4x3 + 3x2 - 30x - 10) ÷ (x -3)

pogonyaev

(12x+6x-30x-10)/(x-3)=
=(-12x-10)/(x-3)
=-12x*+36- 10x+30=
=-22x+56

5 0

3 years ago

Zach read a book for 10 minutes every weekend in the first month, 20 minutes in the second month, 40 minutes in the third month,

Lubov Fominskaja [6]

The answer is B.

This is because A is incorrect, Zach number of minutes didnt increase by an equal factor every month.

C and D are incorrect, Victoria's methods aren't exponential, but Zach's are.

So that leaves the only reasonable answer which is B.

5 0

3 years ago