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
Andrei [34K]
3 years ago
5

I just need to make sure this is correct for a test 6x² - 3x when x=5. my answer was 135

Mathematics
2 answers:
Allushta [10]3 years ago
7 0

Answer:

135 is the correct answer

Step-by-step explanation:

6x^2-3x

substitution

x=5

6* (5*5) -3*5

6*25-3*5

150-15= 135

dsp733 years ago
5 0

Answer:

Yes, it's 135.

Step-by-step explanation:

6(5^2)-3(5)

6(25)-15

150-15= 135.

You might be interested in
I need help with this please....Thanks
IrinaK [193]

Answer:

The total cost of redecoration is £66, that is less than £75. Tenant can decorate the room for the budget set.

Step-by-step explanation:

Lets start calculating the areas of shorter and longer walls.

The area of shorter wall is

2.65m*2.98m=7.897m^2.

The area of longer wall is

3.94m*2,65m=10.441m^2.

Together the area of one long and one short wall is

7.897m^2+10.441m^2=18.338m^2.

The area to be painted ( one short and one long wall) is 18.338m^2 that is less than 30m^2, and hence only one tin of paint is needed (costs £16).

If there is assumed that the sheets of wallpaper must be whole from floor to ceiling, the calculations are following.

We get from one roll

10m/2.65m=3.77 sheets; we can use only 3 of them

The width of the walls is 3,94m+2,98m=6,92m,

and division gives 6.92m/0.52m=13,3... .

Hence it requires 14 sheets, that is 5 rolls of wallpaper.

Wallpaper costs 5*£10=£50 and altogether it is needed £50+£16=£66 to redecorate the room.

7 0
3 years ago
X + 3= -x -5<br><br>what's x?​
Karo-lina-s [1.5K]

Answer:

-4

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
29. What If? In addition to his meal, Stephen orders a fruit salad
bekas [8.4K]

Answer:

fsjnsijree

tgra

age

Step-by-step explanation:

agdgaregraegrea

gaa

5 0
3 years ago
An electronics store buys a television at a wholesale price of $120. The store then sells the television to its customers for $3
algol [13]
180% from the selling price to the wholesale
7 0
3 years ago
Find the semi monthly salary when the weekly salary is $1,200
cestrela7 [59]

Semi-monthly means twice every month, typically either on the 1st and 15th,
or on the 15th and last.

Months don't line up with weeks in any regular way.   Depending on the
company, if they say "bi-monthly", they may pay 24 times a year, or else
26 times a year.

If they pay every 2 weeks, the semi-monthly is $2400.


4 0
3 years ago
Other questions:
  • A frost has caused a temporary spike in the price of orange juice. The price is now $10 a gallon. Before the frost, the price wa
    12·1 answer
  • 2000 tickets were sold in exhibit on Saturday the cost of a ticket for an adult is four dollars and for a child is two dollars a
    11·1 answer
  • 5)<br> Find the slope<br> Please I need help this is the last test of the school year
    10·1 answer
  • Help with this question please
    11·1 answer
  • Sorry for the wait plz help !!!!!!!
    8·2 answers
  • Which point is on the graph of the following function rule: y-7-5x
    12·1 answer
  • Tyshawn drew a two-dimensional shape. The shape had multiple sides. The
    14·1 answer
  • Malila wants to make the International Marine Signal flag shown. What is the area of the flag? _______________ inches squared
    6·1 answer
  • Julie knows that the adult population gets, on average, eight hours of sleep each night. A hypothesis test can help her see if c
    14·1 answer
  • −9x+2&gt;18 OR 13x+15≤−4 solve for x please
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!