All categories

3 years ago

Lesson 13.2 Checkpoint Find the unknown length x in each right triangle, to the nearest tenth.

Mathematics

2 answers:

Y_Kistochka [10]3 years ago

7 0

Answer:

x≈46.7 m<u≈ 47 m<w≈43

Step-by-step explanation:

sin24=19/x

19/sin24≈46.7=x

m<u=sinu=11/15

arcsin11/15≈47

m<w=cosw=11/15

arccos11/15≈43

Alexus [3.1K]3 years ago

3 0

Answer:

Step-by-step explanation:

x/ sin 90 = 19 / sin 24 --> x ≈ 46,71

You might be interested in

Determine the kinetic energy of a 1000-kg roller coaster car that is moving with a speed of 20.0m/s.

elixir [45]

In this question all required information's are already provided. Based on these details the answer to the question can be easily determined. Let us now write down all the information's that are already given.
Mass of the roller coaster = 1000 kg
Velocity of the roller coaster = 20.0 m/s
We know the formula for finding the kinetic energy is
Kinetic energy = 0.5 * mass * (velocity) ^2
   = 0.5 * 1000 * (20)^2
   = 0.5 * 1000 * 400
   = 200000 Joules
So the Kinetic energy of the roller coaster is 200000 joules.

6 0

3 years ago

My coffee mug weighs 200 g and hold 260cm3 .

yarga [219]

The coffee mug when filled will weigh 460 g

<h3>Calculating mass</h3>

From the question, we are to determine the weight of the mug if filled with water

From the given information,

The weight of the coffee mug is 200 g and holds 260cm³.

If filled with water, the volume of the water will be 260cm³.

Now, we will determine the mass of this volume of water

Using the formula,

Density = Mass/Volume

∴ Mass = Density × Volume

Volume = 260 cm³

Density of water = 1 g/cm³

∴ Mass of the water = 1 × 260

Mass of the water = 260 g

Mass of the coffee mug when filled with water = Mass of the coffee mug when empty + Mass of water

Mass of the coffee mug when filled with water = 200 g + 260 g

Mass of the coffee mug when filled with water = 460 g

Hence, the coffee mug when filled will weigh 460 g

Learn more on Calculating mass here: brainly.com/question/17385315

#SPJ1

5 0

1 year ago

Really need help with 11 and 12 just started learning this today and I don't quite understand it would really appreciate it

sineoko [7]

11.

Given:

$y=x^2$

Differentiate with respect to x, we get

$\frac{dy}{dx}=2x$

The given point is (3,9)

Substitute x=3 in the derivative, we get

$\frac{dy}{dx}=2\times\times3=6$

Hence the slope is 3.

12.

Given:

$y=x^2+4$

Differentiate with respect to x, we get

$\frac{dy}{dx}=2x+0$

The given point is (0,4)

Substitute x=0 in the derivative, we get

$\frac{dy}{dx}=2(0)+0=0$

Hence the slope is 0.

4 0

1 year ago

Lisa has a certain amount of money. She spent $39 and has 3/4 of the original amount left. How much money did she have originall

antiseptic1488 [7]

We know that she spent $39, and has 3/4 of the original amount left. Our goal is to find the original amount. We can use the equation. x - 39 = 3/4x. Once we subtract x on the left hand side, we get -39 = -1/4x. Once we multiply -39 by -4, we get 146. She originally had $156.

3 0

3 years ago

30 points plzzz!!!!!!

irinina [24]

Answer:

Step-by-step explanation:

9:8 = 4x+2:4x

36x = 32x + 16

x = 4

6 0

2 years ago