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3 years ago

Which one is it? iv'e been struggling.

Mathematics

2 answers:

natali 33 [55]3 years ago

6 0

Answer:

Step-by-step explanation:

64/ 4=16

16x2= 32

Rainbow [258]3 years ago

4 0

Answer: A

Step-by-step explanation:

Multiply both sides by 4 to get 64

You might be interested in

Solve the right triangle

defon

I recommend learning the mnemonic SOHCAHTOA (it's very fun to say!)
Here is what SOHCAHTOA represents.

Sin - Opposite / Hypotenuse (SOH)
Cos - Adjacent / Hypotenuse (CAH)
Tan - Opposite / Adjacent (TOA)

The sine of an angle is the length of the side opposite of the angle divided by the length of the hypotenuse.

Thus, the length of the side opposite of the angle divided by the sine will give us the length of the hypotenuse.

The angle is 46 degrees. The length of the side opposite of the angle is 14. The hypotenuse is c.

$c= \dfrac{14}{\sin{46^o}}$

$\approx 19.46$

The tangent of an angle is the length of the side opposite of the angle divided by the length of the side adjacent to the angle.

Thus, the length of the side opposite to the angle divided by the tangent of the angle will give us the length of the other leg.

The length of the side opposite to the angle is 14. The angle is 46. The unknown length of the side adjacent to the angle is b.

$b=\dfrac{14}{\tan{46^o}}$

$\approx 13.52$

This should be what you are looking for. Enjoy!

6 0

3 years ago

A man 2 m high observes the angle of elevation to the top of a building to be 71° and the angle of depression to the bottom of t

Yuki888 [10]

Answer:

The building is 13.91 m tall

Step-by-step explanation:

The parameters given are;

Angle of elevation to the top of the building = 71°

Angle of depression to the bottom of the building = 26°

Height of the man = 2 m

Therefore, the sight of the man, the man's height, and the distance of the man from the building forms a triangle where:

The hypotenuse side = The sight of the man to the bottom of the building

Hence;

In ΔABC, A being at the eye level or head level of the man, B at the foot and C at the bottom of the building

∴ ∠A + Angle of depression to the bottom of the building = 90°

∠A = 90° - 26° = 64°

∠B = 90° and ∠C = 26° (Sum of angles in a triangle)

$Tan(C) = \frac{AB}{BC}$

Distance of the man from the building = BC

$Tan(26) = \frac{2}{BC}$

$BC= \frac{2}{ Tan(26) } = 4.1 \, m$

Given that the angle of elevation to the top of the building = 71°, we have;

ΔAET

Where:

A is at the head level of the man,

E is the point on the building directing facing the man and

T is the top of the building

Hence AE = BC and ∡TAE = 71°

TE + AB= The height of the building

$Tan(TAE) = \dfrac{TE}{AE}\\\\Tan(71) = \dfrac{TE}{4.1}$

∴ TE = tan(71°) × 4.1 = 11.91 m

Hence the height of the building = 11.91 + 2 = 13.91 m.

4 0

3 years ago

Slope is 4 and (4,6) is on the line

erik [133]

Answer:

y-6=4(x-4)

Step-by-step explanation:

y-y1=m(x-x1)

y-6=4(x-4)

5 0

3 years ago

Suppose you are investigating which hamburger condiment is most popular in a school cafeteria which type of display would be mos

kodGreya [7K]

It is a bar graph I think

4 0

3 years ago

List the factor 12 and 20 then circle the common factor

vaieri [72.5K]

The factor of 12

1, 2, 3, 4, 6

The factor of 20

1, 2, 4, 5, 10

The common factor of 12 and 20

4

hope this helps you :-)

8 0

3 years ago