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
vlada-n [284]
3 years ago
14

A bag of fertilizers covers 30 square yard of lawn.find how many bags of fertilizers should be purchased to cover a rectangular

lawn 25 yards by 18 yard​
Mathematics
1 answer:
lidiya [134]3 years ago
4 0

Answer:

15 bags

Step-by-step explanation:

25 * 18 yard^2 = area

so, Area/Fertilizercoverrate = what we want.

25*18/30 = <u><em>15 bags</em></u>

You might be interested in
A cube and the net for the cube are shown. <br><br> What is the surface area of this cube?
lozanna [386]
Ok, 6×25=150, since there are 6 sides, the answer is 150cm.
3 0
3 years ago
What is 0.371 as a decimal
sweet [91]

Answer:

It is in a decimal.

In a fraction it’s 371/1000

In a percentage 37.1%

7 0
3 years ago
Read 2 more answers
Find the maximum and minimum values of the function f(x,y)=2x2+3y2−4x−5 on the domain x2+y2≤100. The maximum value of f(x,y) is:
ryzh [129]

First find the critical points of <em>f</em> :

f(x,y)=2x^2+3y^2-4x-5=2(x-1)^2+3y^2-7

\dfrac{\partial f}{\partial x}=2(x-1)=0\implies x=1

\dfrac{\partial f}{\partial y}=6y=0\implies y=0

so the point (1, 0) is the only critical point, at which we have

f(1,0)=-7

Next check for critical points along the boundary, which can be found by converting to polar coordinates:

f(x,y)=f(10\cos t,10\sin t)=g(t)=295-40\cos t-100\cos^2t

Find the critical points of <em>g</em> :

\dfrac{\mathrm dg}{\mathrm dt}=40\sin t+200\sin t\cos t=40\sin t(1+5\cos t)=0

\implies\sin t=0\text{ OR }1+5\cos t=0

\implies t=n\pi\text{ OR }t=\cos^{-1}\left(-\dfrac15\right)+2n\pi\text{ OR }t=-\cos^{-1}\left(-\dfrac15\right)+2n\pi

where <em>n</em> is any integer. We get 4 critical points in the interval [0, 2π) at

t=0\implies f(10,0)=155

t=\cos^{-1}\left(-\dfrac15\right)\implies f(-2,4\sqrt6)=299

t=\pi\implies f(-10,0)=235

t=2\pi-\cos^{-1}\left(-\dfrac15\right)\implies f(-2,-4\sqrt6)=299

So <em>f</em> has a minimum of -7 and a maximum of 299.

4 0
3 years ago
2+2 pls help btw 4 .....
Vsevolod [243]

Answer:

is it 22.

Step-by-step explanation:

is it?

5 0
3 years ago
Read 2 more answers
Point O is between points Mand N on line segment MN. O is the midpoint of line segment MN if
s2008m [1.1K]
Diagram:
M------------O-------------N
................. ^ midpoint
Obviously if O is the *mid*point, then it is exactly halfway between M and N. That also means it has bisected the segment into two equal parts.
On one side you have MO (or OM, if you like)
On the other side you have ON.
In order for O to be the midpoint:
ON = OM
8 0
3 years ago
Other questions:
  • 2(2³-2²)<br><br> Can you also show how you solved it? Thanks.
    11·2 answers
  • wind turbines generate large amounts of electricity from wind energy. the blades on a wind turbine can revolve 22 times per minu
    13·1 answer
  • Next value: 2,3,E,4,5,l,6,8
    13·1 answer
  • Graph y = 1/3x + 3. Can someone help me with this question ​
    13·1 answer
  • (3m2 + 5m - 2) + (-2m +18)?
    6·2 answers
  • A ladder leans against a wall 6 ft above the ground. The base of the ladder is 3 ft from the wall. How long is the ladder?
    7·1 answer
  • PLEASEEEEEE HELPPP I CANT FAILLLL
    13·1 answer
  • Larry saves 15% of his annual salary for retirement. This year his salary was $2000 more than last year and he saved $3300. What
    10·1 answer
  • 1 3/8 + 3 1/4 = <br> (please explain)
    15·2 answers
  • If f(x)=3x+7, find: f(-2)= [?]
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!