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
MrMuchimi
3 years ago
14

Double a number and subtract nine. algebraic expression

Mathematics
1 answer:
insens350 [35]3 years ago
3 0

Answer:

2y - 9

Step-by-step explanation:

number = y

2 × y - 9

2 × y can be simplified to 2y.

2y - 9

You might be interested in
How can I solve 5m-8=3m+8 for m?​
sammy [17]
The work is down below. your answer is m=8.

5 0
3 years ago
Wolf Slayer21 Has 165 Subscribers. He Got 5 More Subscribers. How Many Subscribers Does He Have?
Arada [10]

Answer:

170 Subscribers.

Step-by-step explanation:

He had 165 then he got 5 more so you need to add the amount so 165 and 5 would give you the answer of 170 subscribers. Hope This Helps.

6 0
3 years ago
Read 2 more answers
You have 400 feet of fencing to enclose a rectangular plot. Find the length and width of the plot that will maximize the area. W
3241004551 [841]
Well, we can denote L and W for the length and width respectively. Lets say the A is the area, we have: 1. A=(L × W) as well as 2. 2(L+W)=400. We rearrange the second equation to get 3. W=200-L. From this, we can see that 0<L<200. Substitute the third equation into the first to get A=(200L-L²). put this formula into the scientific calculator and you will find a parabola with a maximum. That would be the maximum area of the enclosed area. Alternatively, we can say that L is between 0 and 200 when the area equals 0. (The graph you find will be  area against length). As the maximum is generally found halfway, we substitute 100 into the equation and we end up with 10000.

Hope this helps.
6 0
3 years ago
Convert the rectangular coordinates (-9, 3V3) into polar form. Express the angle
Whitepunk [10]

Answer:

(6\sqrt{3},\,\frac{5\pi}{6})

Step-by-step explanation:

The radius  r  can be found from the relationship

 r^2=x^2+y^2\\r^2=(-9)^2+(3\sqrt{3})^2\\r^2=81+27=108\\r=\sqrt{108}\\r=6\sqrt{3}

The point is in Quadrant II (-, +), so use the inverse cosine function to find the angle.

\cos{\theta}=\frac{x}{r}=\frac{-9}{6\sqrt{3}}\\\cos{\theta}=-\frac{9}{6\sqrt{3}} \cdot \frac{\sqrt{3}}{\sqrt{3}}\\\cos{\theta}=-\frac{9\sqrt{3}}{6\cdot3}\\\cos{\theta}=-\frac{\sqrt{3}}{2}\\\\\cos^{-1}\frac{-\sqrt{3}}{2}}=\frac{5\pi}{6}

See the attached image.

7 0
3 years ago
Which graph represents a proportional relationship?
Colt1911 [192]

Answer:

represented by the graph of a straight line through the origin with a slope equal to the unit rate.

Step-by-step explanation:

For each point (x, y) on the graph, ž is equal to k, where k is the unit rate.

7 0
3 years ago
Read 2 more answers
Other questions:
  • The quotient of two numbers is 20. Their sum is 84. What are the two numbers?
    6·1 answer
  • A tank in the shape of a right rectangular prism has a height of 5 feet, width of 3 feet, and length of 2 feet. It is full of a
    15·1 answer
  • 2-3/4z=1/8z+9 please show your steps!
    7·1 answer
  • What expression is equivalent to 5/6 divided by 7
    14·1 answer
  • Which number line shows the graph of -2.75 -3<br> -2<br> -1<br> 0<br> 1<br> 2<br> 3<br> 0<br> 1<br> 2.<br> 3<br> -3 -2<br> -1<br
    9·2 answers
  • Last week, it rained g inches. This week, the amount of rain decreased by 5%. Which expressions represent the amount of rain tha
    13·1 answer
  • A circular rug has a circumference of 314 inches. What is the approximate area? Round to the nearest whole inch. Use 3.14 for pi
    8·2 answers
  • Identify the function shown in this graph
    6·2 answers
  • Which one??? Please
    11·2 answers
  • Solve the following absolute value equation.<br><br> −8 − 2 |5X – 17| = −14
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!