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
Sholpan [36]
2 years ago
6

What is the value of u ?

Mathematics
1 answer:
damaskus [11]2 years ago
8 0

Step-by-step explanation:

you do know that the sum of all angles in a triangle is always 180° ?

so,

3u + 6u - 18 + u + 18 = 180

10u = 180

u = 18

You might be interested in
Find the slope. (4, 10) and (-2,-5)​
marta [7]

Answer:

Slope in fraction form = 5/2

Slope in decimal form = 2.5

========================================================

Work Shown:

m = (y2-y1)/(x2-x1)

m = (-5-10)/(-2-4)

m = (-15)/(-6)

m = (-3*5)/(-3*2)

m = 5/2 slope in fraction form

m = 2.5 slope in decimal form

-----------------

Explanation:

The first step is the slope formula where (x1,y1) and (x2,y2) are the two points the line goes through.

I used (x1,y1) = (4,10) and (x2,y2) = (-2,-5)

The slope formula basically says "subtract the y values, then subtract the x values in the same order. Then divide the two differences".

Or you can think of it as

slope = rise/run

rise = y2-y1 = change in y

run = x2-x1 = change in x

7 0
3 years ago
A fisherman can row upstream at 4 mph and downstream at 6 mph. He started rowing upstream until he got tired and then rowed down
shepuryov [24]

A fisherman can row upstream at 4 mph and downstream at 6 mph. He started rowing upstream until he got tired and then rowed downstream to his starting point. The distance of how far the fisherman row if the entire trip took 2 hours is  9.6 miles

<u />

The speed of an object refers to the change of the object's distance within a specified time.

Mathematically, we can have;

\mathbf{Speed =\dfrac{distance}{time}}

Distance = speed × time

From the information given;

  • The fisherman row upstream for 4 miles/ hour.
  • The distance covered by the fisherman = 4 × t₁  ----- (1)

  • The fisherman row downstream at 6 miles/ hour
  • The distance covered by the fisherman = 6 × t₂  ------ (2)

  • SInce it took the entire trip 2 hours, we can infer that:

  • t₁ + t₂ = 2
  • t₂ = 2 - t₁

From equation (2), replace the above value of t₂ into equation (2)

  • d = 6 t₂
  • d = 6(2 - t₁)
  • d = 12 - 6t₁

From equation (1)

  • d = 4 t₁  

Equation both distance together, we have:

  • 12 - 6t₁ = 4t₁
  • 12 = 4t₁ + 6t₁
  • 12 = 10t₁
  • t₁ = 12/10
  • t₁ = 1.2  hours

From t₂ = 2 - t₁

  • t₂ = 2 - 1.2
  • t₂ = 0.8 hours

From d = 4t₁

Replace t₁ with 1.2 hours

  • d = 4(1.2 hours)
  • d = 4.8 miles

Also, from d = 6t₂

  • d = 6(0.8)
  • d = 4.8 miles

Therefore, we can conclude that the distance of how far the fisherman row if the entire trip took 2 hours is (4.8+4.8) miles = 9.6 miles

Learn more about distance here:

brainly.com/question/12319416?referrer=searchResults

3 0
3 years ago
Which function has the greater unit rate?
Sergio [31]

Answer:

Without an uploaded picture or further explanation, a valid answer can not be provided. My apologies

5 0
4 years ago
First to answer will be the brainliest I need the answer ASAP
tatuchka [14]
6b+2 I think I combined them and that’s what I got
3 0
3 years ago
An investment pays 21% interest compounded weekly what percent as a decimal is the effective annual yield? Enter your answer as
Troyanec [42]

9514 1404 393

Answer:

  0.2332

Step-by-step explanation:

The relationship between the effective annual yield (e) and the nominal annual interest rate (r) compounded n times per year is ...

  e = (1 +r/n)^n -1

For weekly compounding, we have n=52, so ...

  e = (1 +0.21/52)^52 -1 = 0.2332 . . . . . . . about 23.32%

6 0
3 years ago
Other questions:
  • Which of the following statements are true? select all that apply.
    7·1 answer
  • Write an equation for 32 is 8 times as many as 4
    8·2 answers
  • I need help please help
    9·1 answer
  • There are 48 cards in a pack and each card is either red or black.the ratio of the number of red cards to the number of black ca
    13·1 answer
  • Who could help me please and thank
    13·1 answer
  • 3. C(8, r) = 28; r =​
    11·1 answer
  • Someone please help me! I’ll give brainliest
    12·1 answer
  • I really need help PLZ and show work
    12·2 answers
  • What is the area of this figure?
    12·1 answer
  • Use the grouping method to factor this polynomial completely.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!