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
fomenos
3 years ago
9

A plane travels at a speed of 180 mph in still air. Flying with a tailwind, the plane is clocked over a distance of 900 miles. F

lying against a headwind, it takes 2 hours
longer to complete the return trip. What was the wind velocity? (Round your answer to the nearest tenth.)
Mathematics
1 answer:
valina [46]3 years ago
8 0
The answer the answer is appropriately 40
You might be interested in
Pls answer for brainliest
lana66690 [7]

Answer: Choice B

(x,y) \to \left(\frac{5}{2}x,\frac{5}{2}y\right)

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

Explanation:

When dilating with respect to the origin, any point of the form (x,y) moves to (kx, ky) for some real number k. The k is the scale factor.

Point C is at (-2,2). It moves to C ' (-5,5)

The jump from x = -2 to x = -5 is "times 5/2" since kx = (5/2)*(-2) = -5

The same scale factor is used when going from y = 2 to y = 5.

Both x and y coordinates are multiplied by 5/2 to move from (-2,2) to (-5,5)

Therefore, the dilation rule we use is (x,y) \to \left(\frac{5}{2}x,\frac{5}{2}y\right)

-----------

We could have these steps to confirm

(x,y) \to \left(\frac{5}{2}x,\frac{5}{2}y\right)\\\\(-2,2) \to \left(\frac{5}{2}*(-2),\frac{5}{2}(2)\right)\\\\(-2,2) \to (-5,5)\\\\

5 0
3 years ago
Estimate the following product in scientific notation, and then select the best answer for the product's power of 10
Whitepunk [10]

Complete Question

Estimate the following product in scientific notation, and then select the best answer for the product's power of 10

(91x10²) ÷ (3.3 x10¹²)

Answer:

2.75 ×10^-9

Step-by-step explanation:

Estimate the following product in scientific notation, and then select the best answer for the product's power of 10

(91x10²) ÷ (3.3 x10¹²)

= (91 × 10²) / (3.3 × 10¹²)

= (91 × 10²) / (33 × 10¹¹)

= 91/33 × ( 10^2 - 11)

= 2.757575757 × 10^-9

Approximately

= 2.75 × 10^-9

5 0
3 years ago
To practice for a competition, Sasha swam 520 meters in the pool each day for 3 weeks. How many kilometers did Sasha swim in tho
lilavasa [31]
520x21 is 10,920

So she swam 10.92kilometers
4 0
3 years ago
Marat has $16 to buy doughnuts for Saturday morning breakfast. Specialty doughnuts cost $2 each and glazed doughnuts cost $1 eac
Mademuasel [1]

Answer:

<h2>Two possibilities are 8 Specialty doughnuts or, 16 glazed doughnuts.</h2>

Step-by-step explanation:

Let, Marat can buy x specialty doughnuts and y glazed doughnuts.

Marat will be able to buy the doughnuts if 2x + y \leq 16.

If we put x = 0 in 2x + y = 16, then y = 16.

For y = 0, x = 8.

Marat can buy 0 doughnuts or can buy some, but the total amount needs to be in between 16.

3 0
3 years ago
What is the solution to the system?<br> a+b=4<br> a=2b-8
nikdorinn [45]
B=4-a sorry if that’s not correct but I think it is
5 0
3 years ago
Other questions:
  • Can somebody tell me the answer real quick?
    15·2 answers
  • 10. Which inverse operation would be used to verify the following equation? 54 ÷ 9 = 6 A. 9 − 6 = 3 B. 9 + 6 = 15 C. 54 ÷ 6 = 9
    12·2 answers
  • Using the given zero, find all other zeros of f(x).
    15·2 answers
  • To cover a rectangular region of her yard, Penny needs at least 155 square feet of sod. The length of the
    5·1 answer
  • Which steps can be used to solve for the value of y?<br><br> 2/3 (y+57) = 178
    12·1 answer
  • What is 4 radical 3 divided by 2?
    6·1 answer
  • 1. Calculate the H.C.F of a 2 b 5 and a 3 b 3 .
    8·1 answer
  • What is the best math joke?
    8·2 answers
  • The difference of two numbers is 7. Their sum is 21. Find the numbers
    11·1 answer
  • Lia's dog weighs 25.6 pounds. She weighed 11.7pounds at adoption. Write an
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!