1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Rudiy27
3 years ago
15

Una pelota sale disparada desde el nivel del suelo, con una velocidad de 40 m/s y un ángulo de elevación de 50°. a) Calcule la a

ltura máxima que alcanza la pelota
Mathematics
1 answer:
DedPeter [7]3 years ago
6 0

Respuesta:

Los 47.85m

Explicación paso a paso:

Altura máxima = u²sin²Ф / 2g

Dado

velocidad u = 40 m / s

Ф = 50 °

g = 9,81 m / s²

Sustituir'

H = 40²sin²50 / 2 (9,81)

H = 1600 (0,7660) ² / 19,62

H = 1600 (0,5868) /19,62

H = 938,8096 / 19,62

H = 47,85 m

Por lo tanto, la altura máxima es de 47,85 m.

You might be interested in
100 POINTS! College Statistics
kirza4 [7]

(a) Collision claims tend to be skewed right because there are a few very large collision claims relative to the majority of claims.

These large collision claims skew the data to the right because they are outliers that draw the mean higher than it should be.

The answer cannot be "no large collision claims" or "many large collision claims" because then the data would not be skewed.

(b) Since there are two random samples comparing two means, we will be using a 2-Samp-T-Test. We will use Welch's approximate t-test, where we test the hypothesis that these two populations have the same mean.

We want to determine if 20-24 year old drivers have the same mean collision cost as 30-59 year old drivers.

(c) The null hypothesis is that <u>the mean claim of collision costs for 20-24 year old drivers is the same as the mean claim of collision costs for 30-59 year old drivers.</u>

We can also rewrite this as:

  • H₀: μ₁ = μ₂
  • where μ₁ is the mean collision claims for 20-24 year old drivers
  • and μ₂ is the mean collision claims for 30-59 year old drivers

The alternative hypothesis is that the <u>mean claim of collision costs for 20-24 year old drivers is higher than the mean claim of collision costs for 30-59 year old drivers</u>.

We can rewrite this as:

  • H₁: μ₁ > μ₂
  • Our variables have already been defined

(d) In order to calculate the p-value, we must find the test statistic first.

We can do so by using this formula:

  • \displaystyle t=\frac{x_1-x_2}{\sqrt{\frac{s_1^2}{n_1}+\frac{s_2^2}{n_2}  }}

We are given these variables in the problem:

  • x_1=4590
  • s_1=2302
  • x_2=3670
  • s_2=2029
  • n_1=40
  • n_2=40

Substitute these variables into the formula for the test statistic.

  • \displaystyle t=\frac{4590-3670}{\sqrt{\frac{2302^2}{40} +\frac{2029^2}{40} } }

You can use the calculator to solve this expression, or plug the numbers into your calculator using: STAT - TESTS - 4:2-SAMPTTEST.

Your test statistic should be: t = 1.8962.

The calculator should also tell you the p-value; p = .0308.

(e) Since p = .0308 < α = .1, <u>reject</u> the null. We have convincing statistical evidence that the mean claim of collision costs for 20-24 year old drivers is higher than the mean claim of collision costs for 30-59 year old drivers.

4 0
2 years ago
The side of the parallelogram in the figure above are given in cm.
GrogVix [38]

<em>solution</em>

<em>or</em><em>,</em><em> </em><em> </em><em> </em><em> </em><em>2 x + y </em><em>=</em><em> 5</em><em> y - </em><em>8</em><em> </em><em> </em><em> </em><em> </em><em> </em><em>being opposite side of </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>parallelogr</em><em>a</em><em>m</em><em> </em><em> </em><em> </em><em> </em><em> </em>

<em>or </em><em>,</em><em> </em><em>2x </em><em>=</em><em>5 y </em><em>-</em><em> </em><em>y</em><em> </em><em>-</em><em> </em><em>8</em>

<em>o</em><em>r</em><em>,</em><em> </em><em> </em><em>2x </em><em>=</em><em> </em><em>4 y -</em><em> 8</em>

<em>or</em><em>,</em><em> </em><em> </em><em>x</em><em> </em><em>=</em><em> </em><em>4</em><em>y</em><em> </em><em>-</em><em> </em><em>8</em><em>/</em><em>2</em>

<em>or</em><em>,</em><em>. </em><em> </em><em>x</em><em> </em><em>=</em><em> </em><em>2</em><em>y</em><em>-</em><em> </em><em>4</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>therefore</em><em>,</em><em> 2x + y</em><em> is equal to</em><em> </em><em>5 y - 8</em><em> </em><em>Being</em><em> the </em><em>opposite side of a parallelogram</em>

<em>now</em><em>,</em><em> </em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>3y + 2</em><em> </em><em>x</em><em> is equal to</em><em> 4</em><em>x</em><em> - 3</em><em> being opposite side of a parallelogram</em>

<em>or</em><em>,</em><em> </em><em>3y</em><em> </em><em>+</em><em> </em><em>2</em><em> </em><em>x-4x</em><em> </em><em>=</em><em> </em><em>-</em><em>3</em>

<em>or</em><em>,</em><em>. </em><em>3</em><em>y</em><em> </em><em>-2x</em><em> </em><em>=</em><em> </em><em>-</em><em>3</em>

5 0
3 years ago
Please answer need for geometry
IrinaK [193]

Answer:

d. 8.38 ft

Step-by-step explanation:

arc(NM) = 180° - 100° = 80° (Angles on a straight line)

Length of arc = θ/360°*2πr

θ = 80°

r = 6 ft

Plug in the values

Length of arc(NM) = 80/360*2*π*6

= 8.3775804

= 8.38 ft

7 0
3 years ago
the utilities bill for the Miller's' house in April was $132. forty two percent of the bill was for gas, and the rest was for el
Lynna [10]
Hey You!

132*42% = 55.44

132 - 55.44 = 76.56

So, the Millers paid $55.44 for gas and $76.56 for electricity.
4 0
3 years ago
Read 2 more answers
Will mark brainliest and thank you!!! Please help!
borishaifa [10]

The solution to the equation is x = 0, 2

The graph is posted

hope that helps :)

5 0
4 years ago
Other questions:
  • WHAT IS 5X SOMETHING THAT EQUALS 120 BESIDES 24 X 5? SOMEONE PLEASE
    14·1 answer
  • What the factor and gcf of 120
    10·2 answers
  • 6. A restaurant can seat 100 people. It has booths
    15·1 answer
  • Chapter 3 portions and instegers
    12·1 answer
  • What is bigger 0.25 or 2/5
    15·2 answers
  • Fill in the blanks to make the equation true. ___ ÷ r x r = p
    9·2 answers
  • Generate a frequency table for the following data: 3, 12, 25, 2, 3, 6, 17, 17, 15, 13, 20, 12, 21, 18, 19.
    11·1 answer
  • Please help me and show work on a piece of paper​
    9·1 answer
  • Which graph represents the parametric equations x(t) = t + 3 and y(t) = t2 – 1 for –1 ≤ t ≤ 3?
    7·2 answers
  • PLEASE HELP I NEED THIS BEFORE 8:00 pm
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!