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
Igoryamba
2 years ago
8

Plz help 7x^2 - 6(x + 3)

Mathematics
1 answer:
max2010maxim [7]2 years ago
4 0

Answer:

7x² - 6x - 18

Step-by-step explanation:

7x² - 6(x + 3)

multiply with -6

7x² - 6x - (6 × 3)

evaluate

= <u>7x² - 6x - 18</u>

You might be interested in
The function f(t) = 33 sin (pi over 2t) − 20 models the temperature of a periodic chemical reaction where t represents time in h
Gennadij [26K]
The given function is
f(t) = 33 sin( \frac{ \pi }{2} t) - 20
with
t = time, hours
f = temperature, °C


Because the maximum and minimum values for the Sine function are +1 and -1 respectively,
The maximum value of f  = 33 - 20 = 13.
The minimum value of f = -33 - 20 = -53. 

The period, T,  is given by
\frac{2 \pi }{T} = \frac{ \pi }{2} \\ \\ T=4

Answer:
Maximum: 13°;  Minimum: -53°;  period: 4 hours
4 0
3 years ago
Write the product using exponents.<br><br> 6.4.6.4.6.4.6.4.b.b.b
maks197457 [2]

Step-by-step explanation:

I count four 6s, four 4s and three b.

so, we have

6⁴×4⁴×b³ or (using the same symbols as above)

6⁴.4⁴.b³

4 0
3 years ago
Megan bought a shirt
Maksim231197 [3]

Answer:

$4.84

Step-by-step explanation:

County A: Multiply the price by the sales tax to find out how much money the sales tax will add. Remember to convert percent to decimal!

$75 * 0.0725 = $5.4375

Add the original price and the sales tax.

$75 + $5.4375 = $80.4375

County B: Multiply the price by the sales tax to find out how much money the sales tax will add. Remember to convert percent to decimal!

$70 * 0.08 = $5.6

Add the original price and the sales tax.

$70 + $5.6 = $75.6

Then take the difference.

80.4375 – 75.6 = 4.8375

Round to the nearest hundredth: $4.84

6 0
3 years ago
The school wants to order a new countertop for the teacher’s lounge. The shape of the countertop that they are replacing is show
mafiozo [28]

Answer:

$1,500

Step-by-step explanation:

70*20 is 1,400, and 20*30 is 600. Those together make 2,000 sq. in. Multiply that by 0.75 and you get $1,500. Hope this helps!

4 0
3 years ago
Read 2 more answers
2 mm= ____ cm what is in the blank?
Ludmilka [50]
1 mm is .1 cm, so 2 mm would be .1*2=.2 cm.
7 0
3 years ago
Other questions:
  • Which expression is equivalent to (7×-5) - (3x-2)​
    12·1 answer
  • The graph of a polynomial is shown below. At which value of x does this
    13·1 answer
  • COMPLETE THE SQUARE TO REWRITE Y=X&gt;2+8X+3 IN VERTEX FORM , AND THEN IDENTIFY THE MINIMUN Y-VALUE OF THE FUNCTION
    10·1 answer
  • Need Help in this math problem .
    6·2 answers
  • A group of children share 11 3/7 vegetarian pizzas. Each child receives 10/14 of a pizza. How many children are in the group
    7·1 answer
  • Calculate the discriminant and use it to determine how many real-number roots the equation has.
    9·1 answer
  • Item 16
    6·1 answer
  • If an 8 sided spinner has 2 one's, 2 two's, 2 three's, and 2 four's, what is the probability of spinning a 3?
    6·1 answer
  • Please help answer by putting <br> "question ___ is option ___"
    5·1 answer
  • Write two expressions that could be
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!