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Mekhanik [1.2K]
3 years ago
12

If f(x)= 3x² – 2, find (-3)*f(x)

Mathematics
1 answer:
Oksanka [162]3 years ago
4 0

Answer:

-9x^2 +6

Step-by-step explanation:

f(x)= 3x² – 2

-3 f(x) = -3 * (3x² – 2)

Distribute

          = -9x^2 +6

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The drama club is planning a field
Inessa [10]

Answer:

\frac{2}{3}s+8=48.

Step-by-step explanation:

  • If we indicate the amount of students in the drama club as"s", we know that \frac{2}{3}s is attending to the trip.
  • We also know that there are will be 8 teachers in the trip as well.
  • If the total amount of persons that will go on the trip reachs 48, which is the sum of 8 teachers and the \frac{2}{3}s of the students: \frac{2}{3}s+8=48.
  • Then, the equation that describes the situation is \frac{2}{3}s+8=48. If we subtract 8 from both sides of the equation, and then we have \frac{2}{3}s=40, which means that s=60.
6 0
4 years ago
Yoo i need help with this stuff
romanna [79]
There are 1760 yards in a mile
2 miles = 3520 yards

he runs 80 yards per practice (4×20)
3520÷80= 44

he needs to do the practice 44 times.

--------------

There are 128 oz in a gallon
he brought two gallons, meaning 256 oz
each cup holds 8 oz

256 ÷ 8 = 32

he can serve 32 cups.
7 0
3 years ago
On Monday Joe runs 1/2 of a mile. On Tuesday he runs 1/3 of a mile. How far has he ran in both days together?
pantera1 [17]

Answer:

5/6 of a mile

Step-by-step explanation:

1/2+1/3=?

1/2=3/6

1/3=2/6

3/6+2/6=5/6

8 0
3 years ago
Read 2 more answers
I need help <br><br> ~~~~~<br> Hggffv
elena-14-01-66 [18.8K]
For a question like this, order of operations must be followed. This can be expressed with PEMDAS.

P arenthesis
E xponents
M ultiplication
D ivision
A ddition
S ubtraction

8^2 ÷ 4 + 3.7(42.3-24.6) -------> Parenthesis first
8^2 ÷ 4 + 3.7(17.7) ------> Now exponents
64 ÷ 4 + 3.7(17.7) ------> Now multiplication and division
16 + 65.49 --------> And finally addition
81.49 which is answer choice C
I hope this helps!

8 0
4 years ago
Please I need help and I need more practice one this please
MrMuchimi
You need to figure what increment each dash line represents. Since given -6 and -14 is 2 dash lines away, you find the difference
-14-(-6) = 8
Since it was 2 dashes away, 8/2 = 4
So, each increment is by 4. 
Since this is the negative direction and the blue dot is 4 increments away, 
-14-4-4-4-4= -30
3 0
4 years ago
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