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AlexFokin [52]
3 years ago
10

Please answer the question

Mathematics
2 answers:
Marizza181 [45]3 years ago
5 0
I believe it is number iii #3
Masteriza [31]3 years ago
3 0

The angles of a triangle sum up to 180^\circ. So, if you know two of them (let's say \alpha and \beta), you can find the third angle \gamma by subtraction:


\alpha +\beta +\gamma = 180^\circ \iff \gamma = 180^\circ-\alpha -\beta  = 180^\circ-(\alpha +\beta)


So, in the first case, the given angles sum to 120^\circ, so the remaining one must be 60^\circ


In the second case, the given angles sum to 19^\circ, so the remaining one must be 161^\circ


In the third case, the given angles sum to 108^\circ, so the remaining one must be 72^\circ


In the fourth case, the given angles sum to 159^\circ, so the remaining one must be 21^\circ


Finally, the triangle with two sides of the same length is the one with two angles of the same measure, so the third one, which is isosceles.

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A triangle has sides with lengths of 7 millimeters, 14 millimeters, and 15 millimeters. Is it a right triangle
Harman [31]

Answer:

Step-by-step explanation:

Property of a right triangle,

(Hypotenuse)² = (leg 1)² + (leg 2)²

If the length of sides of the given triangle are 7mm, 14mm and 15mm.

(15)² = (7)² + (14)²

225 = 49 + 196

225 = 245

False

Therefore, the given triangle is not a right triangle.

6 0
2 years ago
What is the answer PLEASEE
umka2103 [35]

Answer:

3^{-4}

Step-by-step explanation:

3^5\cdot \:3^{-9}=3^{5-9}=3^{-4}

8 0
3 years ago
You are putting a rectangular hot tub on your back porch. It is 6 feet long, 5 feet wide, and 3 feet deep. How much will it cost
igor_vitrenko [27]

Answer:

Cost=\$3.66234\approx \$3.67

Step-by-step explanation:

Height\ of\ tub=3\ feet\\\\Length\ of\ tub=6\ feet\\\\width\ of\ tub=5\ feet\\\\Volume=Length\times Width\times Height\\\\Volume=6\times 5\times 3=90\ feet^3

1\ feet^3=7.48052\ gallons\\\\90\ feet^3=90\times 7.48052=673.2468\ gallons

cost\ of\ 1000\ gallons=\$5\\\\cost\ of\ 1\ gallons=\$ \frac{5}{1000}\\\\cost\ of\ 673.2468\ gallons=\$ \frac{5}{1000}\times 673.2468=\$3.366234

5 0
2 years ago
Is (3,2) a solution of -8x-2y<6
BartSMP [9]

Answer:

yes

Step-by-step explanation:

-8x-2y<6

put in x and y and see if it is less than 6

-8(3) -2(2) <6

-24 -4 <6

-28 <6

yes

it is a solution

8 0
3 years ago
The measure of angle 6 is 98°. What is the measure of angle 7?
otez555 [7]
Dude, it's impossible to solve without the pic
3 0
3 years ago
Read 2 more answers
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