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
lawyer [7]
3 years ago
15

How do I solve this?

Mathematics
2 answers:
svetlana [45]3 years ago
8 0

Step-by-step explanation:

QS = QR + RS

9x -4 = 2x -1 + (4x +17)

9x- 4 = 6x +16

9x - 6x= 16+ 4

3x= 20

x= 20/3= 6.66

sergij07 [2.7K]3 years ago
7 0

Answer:

x = 22/3

Step-by-step explanation:

QR + RS = QS

=> 2x + 1 + 4x + 17 = 9x - 4

-3x = -22

x = 22/3

You might be interested in
Part A: Suppose Jackson hiked due north on the first trail, and due east on the second trail. Show that the magnitude of the res
kotegsom [21]

Answer:

A) √((distance travelled due north)²+(distance travelled due east)²)

B) distance from starting point

C) Yes due west

Step-by-step explanation:

A) According to pythagoras theorem

resultant vector= √((distance travelled due north)²+(distance travelled due east)²)

Also see 1st attachment

B) The resultant vector tells the distance from the starting point

C) The same amount of distance travelled in opposite direction that is westwards will give same magnitude of resutlant vector.

See 2nd attachment

8 0
3 years ago
Find the value of the determinant.
anastassius [24]

Answer:33

Step-by-step explanation: i just did the problem

4 0
3 years ago
Suppose the number of a particular type of bacteria in samples of 1 milliliter (ml) of drinking water tend to be approximately n
Irina-Kira [14]

Answer: 0.0475

Step-by-step explanation:

Let x = random variable that represents the number of a particular type of bacteria in samples of 1 milliliter (ml) of drinking water, such that X is normally distributed.

Given: \mu=85,\ \ \sigma=9

The probability that a given 1-ml will contain more than 100 bacteria will be:

P(X>100)=P(\dfrac{X-\mu}{\sigma}>\dfrac{100-85}{9})\\\\=P(Z>1.67)\ \ \ \ [Z=\dfrac{X-\mu}{\sigma}]\\\\=1-P(Zz)=1-P(Z

∴The probability that a given 1-ml will contain more than 100 bacteria

0.0475.

3 0
2 years ago
Please help! Correct answer only, please! I need to finish this assignment this week. Given matrix A and B both have dimensions
Delicious77 [7]

Answer:

Option B is correct

Step-by-step explanation:

The multiply of matrix A by matrix B that is inverse of A, must result in an identity matrix that has form shown in option B

Hope this helps!

8 0
3 years ago
A farmer from Whidbey Island: A man claims his whalebone can detect water. You design an experiment using a set of 4 cans, 3 emp
tatyana61 [14]

Answer:

The value is E(x) =  1.25

Step-by-step explanation:

From the question we are told that

The number of cans is n = 4

The number of can that are empty is N = 3

The number of can filled with water is k = 1

The number number of sets of cans is w = 5

Generally probability of detecting the correct can is mathematically represented as

p  =  \frac{k}{n}

=> p  =  \frac{1}{4}

=> p  = 0.25

Generally probability of not detecting the correct can is mathematically represented as

q =  1- p

q =  1- 0.25

q = 0.75

Generally the number of cans expected of the farmer to correctly identify by chance is mathematically represented as

E(x) =  w  *  p

=> E(x) =  5  * 0.75

=> E(x) =  1.25

5 0
2 years ago
Other questions:
  • I WILL GIVE YOU BRAINLIEST
    7·1 answer
  • If 65%=x/100 then x =?
    6·1 answer
  • Let event A = You buy a bottle of sunscreen on Friday. Which event is most
    6·1 answer
  • Can u answer an explain how to get the answer im stuck plz
    7·1 answer
  • Help! I'm so confused!<br><br> Question:<br> What is (-7.9 x 6.2) + (-4.5 + 8.2)?
    7·1 answer
  • The farmer says the corn is almost ready to​
    10·1 answer
  • Which of the following have the same vaule as 2.3×3.4 select three that apply
    15·1 answer
  • Denise is using a ladder to clean the outside of her second story windows. The ladder she is using is 24 feet long, and she puts
    5·1 answer
  • Y - y1 = m (x - x1 ) write an equation in point slope form given point ( -5, -1 ) and m = 1/5
    15·1 answer
  • For a complex number written in polar form, its representation is unique as long as the argument is restricted to
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!