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3 years ago

Summary

Mathematics

2 answers:

xeze [42]3 years ago

6 0

Answer:

4 or less

Step-by-step explanation:

because that's how many it has

mina [271]3 years ago

3 0

Answer:

i!^dkk

Step-by-step explanation:

more than

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Consider a triangle ABC like the one below. Suppose that a = 42, b=44, and c= 52. (The figure is not drawn to scale.) Solve the

maksim [4K]

In the triangle , Angle A is 51.1 degrees, B is 54.5 degrees , C is 74.4 degrees.

<h3>What is a Triangle ?</h3>

A triangle is defined as a polygon with three sides , three angles and three vertices.

Using the Law of Cosine to solve the Triangle and to determine the value of all the angles

c² = a²+ b² -2abCosC

a = 42 , b=44 , c = 52

52² = 42² + 44² -2 * 42 * 44 cos C

2704 = 1764 + 1936 -3696 cos C

cos C = 0.269

C =74.4 ° (degrees)

Similarly calculating for A and B will give

Angle A is 51.1 degrees

Angle B is 54.5 degrees

To know more about Triangle

brainly.com/question/2773823

#SPJ1

6 0

2 years ago

In ABC, m A) 180 B) 29 C) 6 D) 122

vivado [14]

None of the above its actually number 22
Hope that helped!?
:)

4 0

4 years ago

I am thinking of a number. My number is between 20 and 30 My number and 12 have only one common factor. What number could I be t

zhannawk [14.2K]

Answer:

21, 22 and 26

Step-by-step explanation:

To answer this question first we need to know which are the factors of 12:

$12= 2^2(3)$

So, now, we need 3 numbers that are between 20 and 30 and that only have one common factor with 12, in other words, they need to have just a 2 or a 3 in their factorization.

Let's take number 21:

$21= (7)(3)$ , we can see that 21 only has a 3 and a prime so therefore it has only one common factor with 12

Now, let's take the number 22,

$22=11 (2)$ , thus since 22 has a 2 and a prime, it has only one common factor with 12.

Now, let's take the number 26

$26= 13 (2)$ , thus, since 26 has a 2 and a prime, it has only one common factor with 12.

Thus, the three possible answers are 21, 22 and 26

7 0

3 years ago

Amy purchased a brand-new mountain bike, which she's riding through

Neko [114]

Answer:

The Acceleration of bike after 3 minutes of ride is 14 meter² per minutes

Step-by-step explanation:

Given as :

The displacement of bike is the function of time

i.e s(t) = t³ - 2 t² + 3 meters

The Time of bike acceleration = t = 3 minutes

Let The Acceleration of bike = a meter² per minutes

Now, According to question

∵ Acceleration is define as the rate of change of velocity

i.e acceleration = $\dfrac{\textrm velocity}{\textrm time}$

or, a = $\dfrac{\textrm v}{\textrm t}$

And

Velocity is define as rate of change of displacement

i.e velocity = $\dfrac{\textrm displacement}{\textrm time}$

Or, v = $\dfrac{\textrm s}{\textrm t}$

Since here displacement is function of time

So , v = $\frac{\partial s(t)}{\partial t}$

Or, v = $\frac{\partial (t³ - 2 t² + 3)}{\partial t}$

Or, v = 3 t² - 4 t + 3

So, velocity is the function of time = v = 3 t² - 4 t + 3 meter per minutes

Now, Again

Acceleration = a = $\frac{\partial v}{\partial t}$

Or, a = $\frac{\partial (3 t² - 4 t + 3)}{\partial t}$

Or, a = 6 t - 4

∴ Acceleration is the function of time = a = 6 t - 4

Now, Acceleration of bike after 3 minutes

So, at t = 3 min

i.e a = 6 t - 4

Or, a = 6 × 3 - 4

Or, a = 18 - 4

∴ a = 14 meter² per minutes

Hence, The Acceleration of bike after 3 minutes of ride is 14 meter² per minutes . Answer

5 0

3 years ago

Chad casts a shadow that is 14.3 feet long. The straight-line distance from the top of Chad’s head to the end of the shadow crea

Elan Coil [88]

Imagine right triangle with first leg to be the Chad length and second leg to be the Chad's shadow. Second leg has length 14.3 ft and since the straight-line distance from the top of Chad’s head to the end of the shadow creates a 23° angle with the ground, you could consider the trigonmetric function

$\tan 23^{\circ}= \dfrac{\text{Chad's length}}{\text{Chad's shadow length}}$ ,

then $\tan 23^{\circ}= \dfrac{\text{Chad's length}}{14.3}, \\ \text{Chad's length}=14.3\cdot \tan 23^{\circ}=6.1$ .

4 0

3 years ago