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
jeka94
3 years ago
10

Y=-7/5x-3 as a proper fraction

Mathematics
1 answer:
Ann [662]3 years ago
3 0

Answer:

7

5x-3

Step-by-step explanation:

You might be interested in
Pleassdee need help I'll brainlist ​
NikAS [45]

Answer:

A^2 means a*a

Step-by-step explanation:

A^2 = 5^2=5*5=25

3a^2=3*5^2=3*25=75

A^2+7=5^2+7=25+7=32

5 0
2 years ago
Read 2 more answers
Hayley begins solving this problem by combining like terms. 3x + 5x = 10 Which problem requires the same strategy (combining lik
Tamiku [17]
D) 3x - 2x = 10 is the answer to this equation 
6 0
3 years ago
Read 2 more answers
What is the solution to this system of equations?
Degger [83]

Answer:

Step-by-step explanation:

8 0
2 years ago
The length of a photograph is 3cm less than twice the width. The area is 54cm^2. Find the dimensions of the photograph.
REY [17]
W= width
l= length= 2w-3

Area= length * width
A= lw
substitute l=2w-3 for l
54= (2w-3)(w)
54= 2w^2 - 3w
subtract 54 from both sides
0= 2w^2 - 3w - 54
factor the polynomial
0= (2w + 9)(w - 6)

Set each set of parentheses equal
to 0 and solve for width.

0=2w+9
-9=2w
-4.5= w NEGATIVE VALUE

0=w-6
6 cm=w

-4.5 is not the answer because it has a negative value. You cannot have a negative side of a photograph. So substitute 6 in to find length.

length= 2w-3
l= 2(6)-3
l= 12-3
l= 9 cm

CHECK:
w= 6cm
l= 9cm
Area= length * width
54= 6*9
54= 54

ANSWER: width= 6cm; length= 9cm

Hope this helps! :)
4 0
2 years ago
A drunkard executes a “random walk” in the following way: each minute he takes a step north or southm with probability 1/2 each,
valentina_108 [34]
Assume that a step to the north is in the positive direction and a step in the south is in the negative direction.

Then,

E(X_i)=50\left(\frac{1}{2}\right)-50\left(\frac{1}{2}\right)\\ \\=25-25=0

and

\sigma^2(X_i)=E(X_i^2)-E(X_i)^2 \\ \\ =50^2\left(\frac{1}{2}\right)+50^2\left(\frac{1}{2}\right)-0^2=2500\left(\frac{1}{2}\right)+2500\left(\frac{1}{2}\right)-0 \\ \\ =2500 \\ \\ \Rightarrow\sigma(X_i)=50

After 1 hour of independent steps,

E(X)=\sum_{i=1}^{60}E(X_i)=60(0)=0

and

\sigma^2(X)=\sum_{i=1}^{60}\sigma^2(X_i) \\  \\ =60(50)=300 \\  \\ \Rightarrow\sigma(X)=\sqrt{300}=17.32

Therefore, by Central Limit Theorem, the distribution of the random walk is normal with a mean of 0 cm and a standard deviation of 17.32 cm. He is expected to be somewhere around his starting point after 1 hour.
6 0
3 years ago
Read 2 more answers
Other questions:
  • 1. Name of transportation 2. Source of energy 3. How energy was converted 4. Disadvantages that were present
    11·1 answer
  • Roland's suitcase has a mass of 2,500 dekagrams. What is the mass of Roland's suitcase in kilograms.
    9·2 answers
  • Determine whether each pair of figures is similar. Justify your answer. DEF is not similar to BAC . Corresponding angles are not
    6·1 answer
  • 16. The temperature on the ground during a plane's takeoff was -7°F. At 38,000 feet in the air, the temperatureoutside the plane
    14·1 answer
  • In the XY-plane, the X-axis contains all ordered pairs such that:
    10·2 answers
  • Jules ran 2/3 miles. Miles ran 5/8 more than Jules. How many miles did Miles run?
    14·2 answers
  • Which of the following is closest to the distance that the tip of the hand travels as it moves from
    15·1 answer
  • PLEASE HELP! I MARK YOU BRAINLEST!<br>Solve for unknown values. <br><br>X= degrees<br><br>Y= degrees
    14·2 answers
  • A dinner plate has a diameter of 12 inches. The diameter of a salad plate is 2 inches less. What is the area of the salad plate
    12·2 answers
  • No qeustoin, just want to give people points
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!