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
OLEGan [10]
3 years ago
9

Due tomorrow please help

Mathematics
1 answer:
NeX [460]3 years ago
7 0
For some of these, a calculator is helpul.

The sum is 294903.

_____
This is the sum of 15 terms of a geometric sequence with first term 9 and common ratio 2. That sum is given by the formula
S_{n}=a\dfrac{r^{n}-1}{r-1}
S_{15}=9\dfrac{2^{15}-1}{2-1}=9\cdot(32768-1)=294903

You might be interested in
You are throwing a pair of dice. What is the probability that you will get a sum of 2?
xz_007 [3.2K]

Answer:

Total favourable outcomes = 36

No. of favourable outcomes of getting a sum of 2 = 1

Probability of getting a sum of 2 = 1/36

7 0
3 years ago
This monitor has a diagonal length of 19 inches and an aspect ratio of 5:4. What are the width and height of the monitor? Round
nasty-shy [4]

<em>Rounded to the nearest tenth of an inch the Witdth of the monitor is 14.8 inches while the Height of the monitor is 11.9 inches.</em>

<h2>Explanation:</h2><h2 />

The aspect ratio is defined as:

<em>"The proportional relationship between the width and height of an image"</em>

It is usually expressed in a mathematical language as:

x:y \\ \\ x: \ Width \\ \\ y: \ Height

So, it is true that:

x:y=5:4 \\ \\ or: \\ \\ \frac{x}{y}=\frac{5}{4} \\ \\ \therefore x=\frac{5y}{4}

In this case, we know that the monitor has a diagonal length (D):

D=19in

So, by Pythagorean theorem:

D^2=361 \\ \\ 361=x^2+y^2 \\ \\ Since \ x=\frac{5y}{4}

D^2=361 \\ \\ 361=x^2+y^2 \\ \\ Since \ x=\frac{5y}{4} \\ \\ 361=\left(\frac{5y}{4}\right)^2+y^2 \\ \\ 361=\frac{25y^2}{16}+y^2 \\ \\ \frac{41}{16}y^2=361 \\ \\ y^2=\frac{261\times 16}{41} \\ \\ y=\sqrt{140.87} \\ \\ y=11.869in

Finding x:

x=\frac{5(11.869)}{4} \\ \\ x=14.836in

<em>Finally, rounded to the nearest tenth of an inch the Witdth of the monitor is 14.8 inches while the Height of the monitor is 11.9 inches.</em>

<h2>Learn more:</h2>

Pythagorean Theorem: brainly.com/question/10182890

#LearnWithBrainly

5 0
3 years ago
A computer that originally cost $850 is on sale for 15%off. What is the sale price of the computer show your work
Yakvenalex [24]
If it is on sale for 15%, then you are paying 85% (100-15) of the original price.

To find 85% of 850, you do 850*.85 to get $722.50

Hope this helps
4 0
3 years ago
Read 2 more answers
Math help please! Thanks so much!
suter [353]
According do what i came up with. after 3 hours train (A) should be 150 miles out towards Smithville, while Train (B) will be 180 miles out towards Westtown. Its best to graph this out to better understand. so 330/2 = 165, so thats your half way point. use this to determine how far train (A) is from SV compared to train (B)s distance to WT. After 3 hours you can see at 180 miles out Train (B) will be crossing paths with Train (A) at 150 miles. So the answer would be 3 hours  
6 0
4 years ago
Will a 9m long planks fit into a square room of side 7m? please I really needed help with this one
Darya [45]
No because if it is a square all the sides are 7m long so a 9m plank will not fit. Hope this helps.
5 0
3 years ago
Other questions:
  • Dominic bought a new alarm clock that was on sale for $18.75. If this price represents a 30% discount from the original price, w
    15·1 answer
  • The Harrison family drove a total of 857.25 miles in three days. On the first day, they drove 298.5 miles. On the second day, th
    11·1 answer
  • Consider the equation 9 - 4x = 2x.
    9·1 answer
  • Convert to an exponential equation.<br> log 5 125= 3
    9·1 answer
  • Zer - 25$ Soil- 6.25 Jamie is starting a garden. She buys 3 bags of potting soil and 4 bags of fertilizer. In all she spent 125$
    7·1 answer
  • The diagram below shows the measurements of a bookcase. What is the total height of the bookcase?
    15·2 answers
  • REWARDING BRAINLY TO CORRECT ANSWER
    9·2 answers
  • What is the symbol for line​
    9·1 answer
  • The track team plans to sprint 20 miles this school year. The runners will sprint 1/4 mile each day. How many days will it take
    11·1 answer
  • Kingsley knows that 111 inch is about 2.542.542, point, 54 centimeters. He wants to write an equation he can use to convert any
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!