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
8090 [49]
3 years ago
15

Y= -(x - 1)(x + 3) has how many real roots?

Mathematics
1 answer:
olchik [2.2K]3 years ago
3 0

Answer:

A.2

Step-by-step explanation:

y= -(x - 1)(x + 3)

To find the roots, set y=0

0 = -(x - 1)(x + 3)

Using the zero product property

x-1 =0   x+3=0

x=1      x =-3

There are 2 real roots

You might be interested in
Combine like terms: <br> 9 + 17e-5e + 1
Mariana [72]

Answer:

Step-by-step explanation:

the like terms are 9, 1 and 17e,-5e

9+1+17e-5e=10+12e

4 0
3 years ago
Derek wants to order some roses online. Florist A charges $4.75 per blue
MArishka [77]

Step-by-step explanation:

let the total charge be y

and the number of rose be x

Florist A charges

y=40+4.75x---------1

Florist B charges

y=25+5.2x--------2

to solve for the number of roses we need to equate 1 and 2

40+4.75x=25+5.2x

40-25=5.2x-4.75x

15=0.45x

x=15/0.45

x=33.33

The number of roses that will be less expensive to order from A is 33.33

5 0
3 years ago
Solve by elementation
lana66690 [7]
I don't understand can you show have to do this pleas
8 0
3 years ago
Read 2 more answers
This graph shows the amount of rain that falls in a given amount of time.
8_murik_8 [283]
Using the formula for finding slope...

y2 - y1        10 - 5        5
----------  =   --------  =  -----
x2 - x1         4 - 2         2

The slope of the line is 5/2.
This means that 5 mm of rain falls every 2 hours.
6 0
4 years ago
The quotient of 12 times an unknown number and 13 is 6. What is the value of the unknown number?
motikmotik
(12x)/13 = 6

12x = 78

x = 6.5
7 0
4 years ago
Other questions:
  • What is the simplified form of (6^2+4)-15
    12·1 answer
  • A=b-2<br>a+b=a×b<br>Prove that a and b aren't whole numbers
    7·1 answer
  • Need helppp pleasee:(
    13·1 answer
  • Write the equation of the line in slope-intercept form m = 4 over 7, y-intercept (0,1)
    9·1 answer
  • Please help!!!<br><br> Refer to the spinner. Find P (even or not shaded).<br><br> A. 2/3<br> B. 1/2
    15·2 answers
  • 1. A farmer collected eggs from his chickens.
    11·1 answer
  • Marissa had a $25 gift card for Roosters on Oxford. Each morning she purchases her $3 vanilla latte. Write an equation in slope-
    10·1 answer
  • A rectangular box has the dimensions shown in the diagram. The volume of the box is given by the function V(x) = x3 – 4x, where
    11·1 answer
  • Please help me with this question
    13·1 answer
  • Please help if you know geometry
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!