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
Dmitriy789 [7]
3 years ago
7

Which students write the correct express

Mathematics
1 answer:
Lyrx [107]3 years ago
5 0

Answer: Madison is correct.

Step-by-step explanation:

4(2x+3y−5z)

=(4)(2x+3y+−5z)

=(4)(2x)+(4)(3y)+(4)(−5z)

=8x+12y−20z

You might be interested in
Evaluate if a = 28 and b = -3.<br> a<br> 4 + b<br> = [?]
SVEN [57.7K]

Answer:

109

Step-by-step explanation:

(4)28+(-3)

4*28=112

112+(-3)

112-3

109

Hope this helps, LMK if its right

4 0
3 years ago
Krystal bought a dishwasher from a rental center for $543.67. She makes 12 monthly payments of $48.62 with her credit card. The
Murljashka [212]
B.) $604.44 is your answer
8 0
3 years ago
Read 2 more answers
What is 5% of 46 and you must show your workings
Gwar [14]

The answer to your question is 2.3

7 0
3 years ago
Read 2 more answers
The box-and-whisker plot describes the scores of golfers in a recent tournament.
romanna [79]
The minimum score was 70.

On a box-and-whisker, the dot on the left end is the lowest value.
The first line on the left is the lower quartile.
The second line is the median.
The third line is the upper quartile.
And finally, the dot on right end is the highest value. 

Hope I could help :) 
3 0
3 years ago
A rancher wants to fence in an area of 1500000 square feet in a rectangular field and then divide it in half with a fence down t
VLD [36.1K]

Answer:

6000 ft

Step-by-step explanation:

Let length of rectangular field=x

Breadth of rectangular field=y

Area of rectangular field=1500000 square ft

Area of rectangular field=l\times b

Area of rectangular field=x\time y

1500000=xy

y=\frac{1500000}{x}

Fencing used ,P(x)=x+x+y+y+y=2x+3y

Substitute the value of y

P(x)=2x+3(\frac{1500000}{x})

P(x)=2x+\frac{4500000}{x}

Differentiate w.r.t x

P'(x)=2-\frac{4500000}{x^2}

Using formula:\frac{dx^n}{dx}=nx^{n-1}

P'(x)=0

2-\frac{4500000}{x^2}=0

\frac{4500000}{x^2}=2

x^2=\frac{4500000}{2}=2250000

x=\sqrt{2250000}=1500

It is always positive because length is always positive.

Again differentiate w.r.t x

P''(x)=\frac{9000000}{x^3}

Substitute x=1500

P''(1500)=\frac{9000000}{(1500)^3}>0

Hence, fencing is minimum at x=1 500

Substitute x=1 500

y=\frac{1500000}{1500}=1000

Length of rectangular field=1500 ft

Breadth of rectangular field=1000 ft

Substitute the values

Shortest length of fence used=2(1500)+3(1000)=6000 ft

Hence, the shortest length of fence that the rancher can used=6000 ft

3 0
4 years ago
Other questions:
  • How do uou do this problem
    8·1 answer
  • Plsss help me!! I’ll make you Brainly
    5·1 answer
  • Which of the following is the next number in the series 3,6,4,9,5,12,6,_
    11·1 answer
  • Rewrite the quadratic y=3(x-2)^2-7 in standard form​
    11·1 answer
  • A driver and a passenger are in a car accident. Each of them independently has probability 0.3 of being hospitalized. When a hos
    7·1 answer
  • Please help, less than an hr tell it’s due
    14·1 answer
  • My favorite songdress
    10·1 answer
  • Which of the following is a solution of x2 − 2x = −8? (6 points) Select one: a. negative 1 minus i square root of 28 b. 1 plus i
    13·1 answer
  • F(4) if f(x)=-3+15? The answer is not 12.
    15·1 answer
  • Write an equation representing the graph.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!