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
S_A_V [24]
3 years ago
14

A satellite camera takes a​ rectangle-shaped picture. The smallest region that can be photographed is a 22​-km by 66​-km rectang

le. As the camera zooms​ out, the length l and width w of the rectangle increase at a rate of 33 ​km/sec. How long does it take for the area A to be at least 5 times its original​ size?
Mathematics
1 answer:
alexgriva [62]3 years ago
3 0
Find what that area is
22*66=1452

5 times of that is
1452*5=7260


s=seconds

(22+33s)(66+33s)=7260
1089s^2+2904s+1452=7260
minus 7260 from both sides
1089s^2+2904s-5808=0
factor or use quadratic formula
(363)(x+4)(3x-4)=0
set each to zero
x+4=0
x=-4, false, it is increasing, not decreasing

3x-4=0
3x=4
x=4/3

answer is 4/3 seconds
You might be interested in
for a special concert by a popular band, the concert hall owner decided to charge $20 per ticket for the first "r" rows and $15
Alecsey [184]
R = 16 according to the problem, so the total amount of income will be:
$20*16 + $15*(40 - 16)
= $320 + <span>$15*(24)
= </span>$320 + <span>$360
= $680
that is the income, but the expenses are $275 so the total revenue is the subtraction of those two
total revenue = $680 - $275
= $405</span>
7 0
3 years ago
Find the measure of each angle.
Marrrta [24]
90= 3x + 2x
90= 5x
x= 18
one measure = 3(18)= 54
the other one= 2(18)= 36
hope this helps!
5 0
2 years ago
Look at the graph below.<br><br> What is the slope of the line?
yarga [219]

Answer:

what graph

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Elmer has a collection of 30 fossils. Of these, 21% percent are fossilized snail shells. How many fossilized snail shells does E
postnew [5]
Hiiiiiiiiiiiiiiii friends....
here is your answer
hope it help you....

6 0
3 years ago
15. Use synthetic division to find the quotient and remainder when-x² + 3x³ + 12x² - 14x + 20x-5Write your answer in the followi
egoroff_w [7]

Given:

The polynomial is given as

\frac{-x^4+3x^3+12x^2-14x+20}{x-5}

Required:

We need to find quotient and remainder

Explanation:

By synthetic division

Final answer:

Quotient is

x^3-2x^2+2x-4

Remainder is 0

8 0
1 year ago
Other questions:
  • Simplest form 15/23 × 6/7
    6·1 answer
  • A student has scores of 85,83,98 and 77 on four quizzes. What must she score on the fifth quiz to have an average of at least 84
    9·1 answer
  • Philipe
    5·1 answer
  • What is the 6th term of the geometric sequence 1024,528,256
    8·1 answer
  • To convert 8.5 yards today a feet which ratio could you use to multiply by
    7·1 answer
  • Fifty people were surveyed about their favorite pizza topping. The results of the survey are displayed in the circle graph. How
    6·1 answer
  • A batch of cookies calls for 3/4 cup of flour. You want to make 1/2 of a batch. How much flour do you need?
    12·1 answer
  • Please please help pleaseeeeee <br><br><br> also .. it wouldnt let me crop the photo ..
    5·1 answer
  • Pls help, I suck at percentage lol
    15·1 answer
  • Which are perfect squares? Check all that apply.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!