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
Tanya [424]
3 years ago
15

A ship goes at the rate of (3m-2) knots per hour. How far can it travel in (4m+9) hours?

Mathematics
1 answer:
Ber [7]3 years ago
7 0

Answer: 12m^2+19m-18

Step-by-step explanation:

Given

Speed of boat v=3m-2\ \text{knots per hour}

\text{time t= }4m+9\ \text{hours}

\Rightarrow \text{Distance =speed}\times \text{time}

\Rightarrow \text{Distance d=}(3m-2)\cdot (4m+9)\\\Rightarrow d=12m^2+19m-18

You might be interested in
What is the slope of the diagonal line on the larger triangle? Explain how you found it.
Stolb23 [73]

Answer: 2/3 is the slope I think and for the same slope thing here is my answer:

We can use similarly of triangles in this case there will be a formation of 2 pairs equal ( angles formed by the y-axis on the parallel lines) angles between triangles formed as the y-axis lines are parallel. So,the slope is the same for both.

5 0
2 years ago
How many times does the diameter go around a circle?
marissa [1.9K]

Answer:

The circumference of a circle is approximately three times its diameter. If you divide the circumference by its diameter, the constant ratio is called Pi, which is an irrational number shown with this symbol: For example, the circle below has a radius of 4.5 inches.

Step-by-step explanation:

Hope this helps!

Brain-List?

4 0
3 years ago
Which of the following is not a property of mathematical proofs?
Contact [7]

There are no properties of mathematical proofs
on the list of choices that you have offered.

7 0
3 years ago
If 2tanA=3tanB,then prove that tan(A-B)=sin2B/(5-cos2B) ...?
andreev551 [17]
Tan ( A - B ) = ( tan A - tan B ) / ( 1 + tan A tan B )
tan A = 3 tan B/2
tan ( A - B ) = ((3 tan B/ 2)-tan B) / ( 1 + 3 tan² B/2)=
= (tan B/2)  / ( 2 + 3 sin²B/cos²B )=
= (sin B / cos B) / (( 2cos² B+3sin²B)/cos²B)=
=( sin B cos B ) / ( 2 cos²B + 3 ( 1 - cos² B ) ) =
= (sin B cos B ) / ( 2 cos² B + 3 - 3 cos² B ) =
= ( sin 2 B ) / 2 ( 3 - cos² B ) =
= ( sin 2 B ) / ( 6 - cos² B )=
= ( sin 2 B ) / ( 5 + 1 - 2 cos² B )=
= ( sin 2 B ) / ( 5 + sin² B + cos ² B - 2 cos² B ) =
= ( sin 2 B ) / ( 5 - ( cos² B - sin² B ) ) =
= ( sin 2 B ) / ( 5 - cos 2 B )  - correct 
8 0
3 years ago
What percent of 126 is 22
Anna11 [10]
In order to solve, set up a proportion: 22/126=x/100. Cross multiply: 2200=126x. Divide by 126 on both sides: 17.46%=x
8 0
3 years ago
Other questions:
  • What is the range of the function y = 2 sin x
    10·2 answers
  • What is y-6 = 2(x+5) in standard form?
    12·1 answer
  • 4.5 - (2.5x - 12.5)<br><br> 1.)2.5x-8<br> 2.)2.5+17<br> 3.)-2.5+7<br> 4.)-2.5-8
    10·2 answers
  • Which fraction does not belong with the other three? 1/20, 20/25, 2/3 or 5/4. Explain why
    6·1 answer
  • In triangle ABC, ∠A and ∠B are complementary, where cos A = 0.24. What is the measure, to the nearest degree of, ∠B?
    14·1 answer
  • Shannon is 3 years older than Jenny. The sum of their ages is 33. How old are Shannon and Jenny?
    10·2 answers
  • If 3g - 11 + 3y, what is the value of y when g is 12?
    15·2 answers
  • HELP DUE IN 10 MINS!
    11·1 answer
  • Choose the student with the correct answer. Pls Help ;-;
    15·1 answer
  • Determine the degree of the given polynomial x^2 ( 1 - x^3)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!