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
navik [9.2K]
2 years ago
12

A practice field is in the shape of a rectangle. The area of the practice field is represented by 5x^2 + 30x -7xy -42y. Find the

expressions that represent the length and width of the practice field.
Mathematics
1 answer:
fredd [130]2 years ago
8 0

Answer:

length and width are x + 6 and 5x - 7y

Step-by-step explanation:

5x² + 30x - 7xy - 42y

= 5x(x + 6) - 7y(x + 6)

= (x + 6)(5x - 7y)

so

length and width are x + 6 and 5x - 7y

You might be interested in
Prove the following statement.
gayaneshka [121]

Answer:

You can prove this statement as follows:

Step-by-step explanation:

An odd integer is a number of the form 2k+1 where k\in \mathbb{Z}. Consider the following cases.

Case 1. If k is even we have: (2k+1)^{2}=(2(2s)+1)^{2}=(4s+1)^{2}=16s^2+8s+1=8(2s^2+s)+1.

If we denote by m=2s^2+2 we have that (2k+1)^{2}=8m+1.

Case 2. if k is odd we have: (2k+1)^{2}=(2(2s+1)+1)^{2}=(4s+3)^{2}=16s^2+24s+9=16s^{2}+24s+8+1=8(2s^{2}+3s+1)+1.

If we denote by m=2s^{2}+24s+1 we have that (2k+1)^{2}=8m+1

This result says that the remainder when we divide the square of any odd integer by 8 is 1.

6 0
3 years ago
**PLEASE HURRY**
Mariana [72]

Answer:

////

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
On a typical day flights at a local airport arrive at a rate 10 every 15 minutes at this rate how many would you expect to arriv
harina [27]
How many times do 15 minutes fit into one hour? 4 times: 4*15=60 mins.

So that means that 4 times per hour 10 flights appear, and in total 4*10=40 planes arrive over one hour!
5 0
3 years ago
Leah walks to soccer practice on Saturday. She leaves her home and walks 600 meters north. Leah then turns east and continues on
Diano4ka-milaya [45]

Answer:

800m

Step-by-step explanation:

this would be solved using Pythagoras theorem

we are to find the base

The Pythagoras theorem : a² + b² = c²

where a = length

b = base

c =  hypotenuse

600² + b² = 100²

b² = 10000 - 3600

b² = 6400

take the square root of both sides

b = 800m

4 0
2 years ago
A dog kennel uses 90 lb of dog food per day. How many pounds are used in a year?
Mariulka [41]
32850 pounds are used in a year.
5 0
3 years ago
Read 2 more answers
Other questions:
  • How many teaspoons are in a quart
    7·1 answer
  • The inside wheels of a car traveling on a circular path are rotating half as fast as the outside wheels. The front two wheels ar
    9·1 answer
  • Simplify the complex fraction.<br>Alw<br>2 3/4 1 1/8<br>​
    14·1 answer
  • Question 2<br> Solve the equation.<br> a +3.7 = 4.1
    7·2 answers
  • Let f be an exponential function and g be a logarithmic function.
    6·1 answer
  • 7 x 28<br> = 7(20 + 8<br> = (7 x 20)+(7<br> = 140 + 56<br> = 196
    15·1 answer
  • We analyzed the relationship between the budgets (in millions of dollars) and the U.S. Box Office Sales (in millions of dollars)
    14·1 answer
  • PLS HELP
    15·1 answer
  • 50 POINTS: Please help thank you so much!! (Image attached) The polygons are similar. Find the values of the variables.
    5·1 answer
  • kiyo bought a pizza for 12.75 and four medium drinks to Pauli’s pizza. Define a variable and write an expression to represent th
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!