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
Nady [450]
2 years ago
8

PLEASE HELP I NEED THIS ASAP I WILL MARK YOU THE TOP!!!!

Mathematics
1 answer:
GalinKa [24]2 years ago
4 0

Answer:

for the first one

Step-by-step explanation:

you would add 9 to each side making x= a negative number

You might be interested in
A store down the street is selling a bicycle for 45% off the retail price. The bicycle regularly sells for $115.00. What is the
Pepsi [2]

Answer:

D

Step-by-step explanation:

100%-45%=55%

$115*55%=$63.25

3 0
2 years ago
find the distance between each pair of points. if necessary, round to the nearest tenth. a(0,3), b(0,12)
statuscvo [17]
The distance between a & b is 3
7 0
3 years ago
Natalie had a job after school. She worked 25 hours a week and got paid $6.25 an hour. How much money would she earn for two wee
erastovalidia [21]

Answer:

312.5

Step-by-step explanation:

25 x 2, for two weeks of work = 50

50 x 6.25 = 312.5

6 0
2 years ago
Read 2 more answers
Determine the number of real solutions for each of the given equations. Equation Number of Solutions y = -3x2 + x + 12 y = 2x2 -
rosijanka [135]

Answer:

Step-by-step explanation:

Our equations are

y = -3x^2 + x + 12\\y = 2x^2 - 6x + 5\\y = x^2 + 7x - 11\\y = -x^2 - 8x - 16\\

Let us understand the term Discriminant of a quadratic equation and its properties

Discriminant is denoted by  D and its formula is

D=b^2-4ac\\

Where

a= the coefficient of the x^{2}

b= the coefficient of x

c = constant term

Properties of D: If D

i) D=0 , One real root

ii) D>0 , Two real roots

iii) D<0 , no real root

Hence in the given quadratic equations , we will find the values of D Discriminant  and evaluate our answer accordingly .

Let us start with

y = -3x^2 + x + 12\\a=-3 , b =1 , c =12\\D=1^2-4*(-3)*(12)\\D=1+144\\D=145\\D>0 \\

Hence we have two real roots for this equation.

y = 2x^2 - 6x + 5\\

y = 2x^2 - 6x + 5\\a=2,b=-6,c=5\\D=(-6)^2-4*2*5\\D=36-40\\D=-4\\D

Hence we do not have any real root for this quadratic

y = x^2 + 7x - 11\\a=1,b=7,-11\\D=7^2-4*1*(-11)\\D=49+44\\D=93\\

Hence D>0 and thus we have two real roots for this equation.

y = -x^2 - 8x - 16\\a=-1,b=-8,c=-16\\D=(-8)^2-4*(-1)*(-16)\\D=64-64\\D=0\\

Hence we have one real root to this quadratic equation.

7 0
2 years ago
To print tickets, a printer charges a $30 setup fee plus $1.05 per ticket. Write an algebraic expression for the cost of t ticke
arsen [322]

Answer:

Solution given:

we have

setup price =$30

as rate for 1 print tickets =$1.05/tickets

so

for t

t=$30+$1.05*t

is a required expression.

the

cost of 300 tickets:

300 tickets =$30+$1.05*300=$345

$345is the cost of 300 tickets.

5 0
3 years ago
Other questions:
  • El señor Sandro tiene paquetes con varias bolsas de 35 lunetas cada uno Mientras que el señor Lauro tiene paquetes con bolsas de
    14·1 answer
  • ( middle school 5th grade ) The plot below shows the amount of time spent on 5 math problems. If the total amount of time spent
    5·1 answer
  • Which is a correct way of evaluating the expression 15x + 30x for x = 2?.
    10·1 answer
  • How many fourths are in three fourths? Please Explain!! Thank You
    10·1 answer
  • Please help me, i really need help
    12·2 answers
  • HELP ASAP GIVING OUT BRAINLIEST!!!
    7·1 answer
  • What is the equivalent ratio for 3:4​
    14·2 answers
  • Geometry
    9·1 answer
  • good night beautiful u did great today. I'm so proud of u. dont forget to drink water and eat something :)​​
    7·1 answer
  • Is 5/15 rational or irrational?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!