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
Jobisdone [24]
3 years ago
8

5. Katie makes and sells scarves. Her monthly profit is given by P(s) = -s2 + 25s - 100, where "s" is the selling price. For wha

t range of prices can Katie sell the scarves, in order to make a profit? (For what values of "s" will -s2 + 25s - 100 be greater than 0?)
Mathematics
1 answer:
Marat540 [252]3 years ago
4 0

Answer: s > 5

Step-by-step explanation:

-s² + 25s - 100 > 0

Coefficient of s² is -1, multiply the equation through by -1.

-1 × (-s² + 25s - 100)

s² — 25s + 100

ax² + bx + c

Then you get the factors x and y that gives x + y = b and xy = c

b = -25 and c = 100, x = -20 and y = -5

-20 × -5 = 100 and -20 + -5 = -25

Then

s² — 20s — 5s + 100 > 0

Factorising,

s (s — 20) — 5(s — 20) > 0

(s — 5)(s — 20) > 0

(s — 5) > 0 and (s — 20) > 0

s>5 and s>20

s > 5

Hope this Helps?

You might be interested in
Earth is approximately 5x10^9 years old . for which of these ages could this be an a aproxiamation
madreJ [45]

Answer:

D is correct

Step-by-step explanation:

the answer cant be direct numbers

4 0
3 years ago
I'll GIVE BRANLIEST!!!!!An architect is using 3-D modeling software to help design a new business tower to be constructed on a s
Amanda [17]

Answer:

stop d dial soap sid do all all all

6 0
3 years ago
Read 2 more answers
7. What is the area of the trapezoid shown? 4 cm 10 cm 8 cm W 10 cm​
Keith_Richards [23]

Answer:

88 ... .... . ... . . . ... ............... ....

5 0
3 years ago
Pls help i beg i will give brainlist and points
leonid [27]

Answer:

7. 1/10 or 10%

9.5/10

11.5/10

13.9/10

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
How many solutions does the following equation have? ln(x2 + 4x − 5) = 0
lisov135 [29]
Alrighty
remember
log_a(b)=c means a^c=b
and
ln(x)=log_e(x)
and
x^0=1 for all real values of x
so

ln(x^2+4x-5)=0 means
log_e(x^2+4x-5)=0 means
e^0=x^2+4x-5 which simplifies to
1=x²+4x-5
minus 1 both sides
0=x²+4x-6
use quadratic formula or complete the square
x=-2+\sqrt{10} and x=-2-\sqrt{10}
2 solutions
7 0
3 years ago
Other questions:
  • What is 4x-5.2y + 6y + 7.9x - 8x
    14·1 answer
  • B(t)=50(1.4)^t
    8·1 answer
  • Find the equation of the plane with the given description. contains the lines r1(t) = 2, 1, 0 + t, 2t, 4t and r2(t) = 2, 1, 0 +
    8·1 answer
  • If I made 128 ounces of punch how many cups of punch would I have
    8·2 answers
  • .A survey was conducted by a consulting company. Results showed that 83% of their previous customers would recommend the company
    7·1 answer
  • A student's rectangular desk is 30in long and 18in wide. The teacher's desk is similar to the student's desk and has a length of
    6·1 answer
  • Please help ASAP thank you!
    11·2 answers
  • Crystal randomly selects a card from the list and
    8·1 answer
  • Find the axis of symmetry of the parabola
    10·1 answer
  • What is the height of the tree?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!