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
USPshnik [31]
2 years ago
10

The power, P (watts), of a car engine is proportional to the square of its speed, s(m/s) When s= 30 P= 1500 Work out the speed (

to 1 DP) when the power is 1715 watts
Mathematics
1 answer:
monitta2 years ago
7 0

Answer:

S = 32.1 m/s

Step-by-step explanation:

P = 1,500

S = 30

since P is proportional to S², then we must first determine S² = 900

900 / 1,500 = S² / 1,715

(900 x 1,715) / 1,500 = S²

1,543,500 / 1,500 = S²

S² = 1,029

S = √1,029 = 32.08 m/s ≈ 32.1 m/s

You might be interested in
How many deciliter are equivalent to 5 cups
notsponge [240]

Answer:

11.8294Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Which expression is equivalent to 4+2(1+3x)
Leviafan [203]

Answer:

I'm glad you asked!

Step-by-step explanation:

OK,let's simplify the number for a equivalent expression.

4+2(1+3x)

Distribute:

=4+(2)(1)+(2)(3x)

= 4+2+6x

Combine Like Terms:

=4+2+6x

=(6x)+(4+2)

=6x+6

The Final Answer is : 6x+6

8 0
3 years ago
Which of the following is an EQUATION?
Artist 52 [7]

Answer:

C

Step-by-step explanation:

An equation is where you already have the answer but you have to find out what the variable is to prove that the equation is true.

8 0
3 years ago
Read 2 more answers
Allen has $10 to spend. He bought a sandwich for
Natasha2012 [34]

Answer:

MY friend the anwser is A  I hope this will help plz mark me brainliest

Step-by-step explanation:

8 0
2 years ago
Help!!!1!!!!!!!!!!!!!!!!!!!!!!
ad-work [718]
Equation B is written in vertex form, which means you can read the vertex (extreme value) from the numbers in the equation.

Vertex form is
   y = a(x -h)² + k
where the vertex (extreme point) is (h, k). Whether that is a maximum or a minimum depends on the sign of "a". When "a" is negative, the graph is a parabola that opens downward, so the vertex is a maximum.


Equation B reveals its extreme value without needing to be altered.
The extreme value of this equation is a maximum at the point (2, 5).

3 0
2 years ago
Other questions:
  • If Anna pays $18 for a pack of 25 markers how much is each marker
    5·1 answer
  • A phone company took a survey of its customers and found that 103 of 150 people said that they were pleased with their service t
    10·2 answers
  • John Maynard Keynes and Karl Marx would agree most about the answer to
    10·2 answers
  • If sin 150° is 1/2 find sin75°
    10·1 answer
  • Please help me with this
    5·2 answers
  • Henry needs 2 pints of red paint and 3 pints of yellow
    7·1 answer
  • After planting a seed, you notice that it produces 2 leaves in 10 days. If it doubles the number of leaves it has every 10 days,
    15·1 answer
  • Evaluate 9 - 3 * 2 + 4.
    7·2 answers
  • The admission fee at an amusement park is $2.50 for children and $5.80 for adults. On a certain day, 343 people entered the park
    7·1 answer
  • You are going shopping for some new pants. You see a deal at Old Navy for 5 pants for $160. There's another deal at H & M fo
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!