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3 years ago

Zoe’s math teacher tells her to construct an equilateral triangle. What information does Zoe need?

Mathematics

2 answers:

Inga [223]3 years ago

6 0

You just need to know that all sides need to have the same measurement because it is a equilateral triangle.

AlekseyPX3 years ago

3 0

In equilteral triangle all three sides are of same length nd angles so he need any one one measurement and other sides will be same.

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In the terminal side of an angle in standard position lies on -4y=3x and x>0, find the exact values of the trigonometric func

charle [14.2K]

Answer:

sec ∅ = 5/4

cosec ∅ = -5/3

cot ∅ = -4/3

Tan ∅ = - 3/4

sin ∅ = -3/5

cos ∅ =4/5

Step-by-step explanation:

Given : -4y = 3x , x > 0

i.e. 3x + 4y = 0 , x >0

4y = -3x ∴ y = - 3/4 x

The values of trigonometric functions of ∅ are

Tan ∅ = opposite / adjacent

= - 3/4 ( given that y = slope which is = Tan ∅ )

now we will find the hypothenuse ( c )

c^2 = a^2 + b^2 = 9 + 16 = 25

therefore ; c = √25 = 5

hence the trig functions are :

sin ∅ = -3/5

cos ∅ =4/5

sec ∅ = 5/4

cosec ∅ = -5/3

cot ∅ = -4/3

8 0

3 years ago

What is the value of x in the triangle?

yulyashka [42]

<h3>Answer: C) x = 13</h3>

====================================================

Work Shown:

We have a right triangle with legs a = 5 and b = 12. The hypotenuse is c = x which is unknown for now.

Use the pythagorean theorem to find x.

a^2 + b^2 = c^2

5^2 + 12^2 = x^2

25 + 144 = x^2

169 = x^2

x^2 = 169

x = sqrt(169) .... apply the square root to both sides

x = 13

4 0

3 years ago

Simplify this algebraic expression, 5(b-4)+25=5x6-5x4

nadya68 [22]

B=1 5(b-4)+25=5x6-5x4 5b-20+25=30-20 5b+5=10 5b=5 B=1

8 0

3 years ago

Read 2 more answers

1.The angle of elevation of a jet plane from a point R on the ground is 60°. After a flight of

egoroff_w [7]

Answer:

Diagram is not so perfect

OR = distance travelled by the jet plane.

Step-by-step explanation:

Let point J be the jet plane and OJ be the constant height at jet plane is flying and OR be the distance jet plane is travelling.

h =

$1700 \sqrt{3}$

Now,

From the figure i drew (1st)

taking 60 as reference angle,

tan60° = p/b

or,

$tan60 = 1700 \sqrt{3} \div b$

$b \: = 1700 \sqrt{3} \div tan60$

so, b = 1700m

inital distance = 1.7km(OR)

now,

tan 30 = p/b

$tan30 = 1700 \sqrt{3} \div b \\ or \: b = 1700 \sqrt{3} \div tan30$

so, b = 5100 m

so, final distance = 5.1 km(OR)

Now,

distance travelled = final distance - initial distance

distance travelled = 5.1 km - 1.7km

distance travlled = 3.4 km

Now,

time = 17 seconds

= 0.00472 hour.

Now,

speed = d/t

or, speed = 3.4/0.00472

so, speed = 720.3389km/hr

so, speed = 720 km/hr approximately

5 0

3 years ago

Which set or sets does the number 15 belong to?

Sunny_sXe [5.5K]

Answer:

D. whole numbers, integers, and rational numbers

hope it helps

5 0

3 years ago