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
Natali5045456 [20]
3 years ago
5

This is correct? I need help please :(

Mathematics
2 answers:
Leto [7]3 years ago
8 0

Answer:

well, we only no that

2l + 2w is 80

(lengths and widths on all 4 sides

and that w * l is A

so the function should be w times what's left for l, but also expressed by something with w

2l + 2w = 80 | -2w

2l = 80 -2w | devide by 2

l = 80 - w

now we can substitute l in

A = w * l

so that we only need w's

A(w) = w * (80-w)

for any w it will give us the area, makes only sense for 0<w<80

matrenka [14]3 years ago
6 0
Ye that’s right i think

-
a
a
a
a
a
a

a
a
a
a
a
a
You might be interested in
Two 6 sided dice are rolled. what is the probability of rolling a 3 on either of the dice
emmasim [6.3K]
There is a 2 of 6 percent chance that one them might land on three if you add one extra dice it would be 3 of 6 percent chance and so on.

Hope this Helped!

;D
Brainliest??
7 0
3 years ago
Dylan buys 3.2 pounds of grapes for $2.56. What is the price per pound of the grapes?
Alona [7]

Answer:

$0.64/lb

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Select the three ratios that represent the number of red cars to blue cars
Afina-wow [57]
We need to see the picture of the problem
8 0
3 years ago
PLEASE HELP NEED THIS ANSWERED CORRECTLY
Helen [10]

f(3) = 1.9

Solution:

Given function:

$f(x)=\frac{14}{7+2 e^{-0.6 x}}

To find f(3):

Substitute x = 3 in the given function.

$f(3)=\frac{14}{7+2 e^{-0.6 (3)}}

$f(3)=\frac{14}{7+2 e^{-1.8}}

Let us first simplify 2e^{-1.8}.

Apply exponent rule: a^{-b}=\frac{1}{a^{b}}

$ 2e^{-1.8}=2\frac{1}{e^{1.8}}$

The value of e^{1.8}=6.04964. (using calculator)

$\frac{2}{e^{1.8}}=\frac{2}{6.04964}=0.33059

2e^{-1.8}=0.33059

Substitute this value in f(3).

$f(3)=\frac{14}{7+0.33059}

$f(3)=\frac{14}{7.33059}  

$f(3)=1.90980

f(3) = 1.9

Hence the value of f(3) is 1.9.

3 0
3 years ago
Write an expression to answer the question.You buy x birthday cards for $1.85 each. How much do you spend?
Alex Ar [27]
Y=1.85x
Hope this helped
8 0
3 years ago
Other questions:
  • 2. A rectangle has an area of 7 7/8 square inches and a length of 3 1/2 inches. The rectangle's width is ____ inches. Write your
    8·1 answer
  • PLEASE HELP WITH MATH CONSTRUCTED RESPONSE!!
    8·1 answer
  • Who wants brainiest plz be new only
    8·2 answers
  • Students collected donated books for three libraries. The chart shows the number of books given to each of the three libraries
    5·1 answer
  • What is the area of the parallelogram?
    11·2 answers
  • Find the measure of an angle in standard position for each reference angle.​
    5·1 answer
  • the local charity receives 1/4 of funds raised during a clearance sale and Marathon. the total amount given to charity was 253.7
    10·1 answer
  • What is the answer help
    5·1 answer
  • Hi please can you help me this is a new topic and I’m very confused
    12·1 answer
  • Given the graph of g(x), describes the transformation of the parent function f(x)=2^x
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!