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
8_murik_8 [283]
3 years ago
9

Factor completely 3x2 + 9x – 54. ...?

Mathematics
1 answer:
anyanavicka [17]3 years ago
8 0
3x² + 9x - 54 :(3)
x² + 3x - 18
(x-3)*(x+6)
You might be interested in
Is 40 a multiple or a factor
gladu [14]
Hey there!
It can be both. It's a multiple of 8 because 8 times 5 is 40, but it's also a factor of 120 because 80 times 3 is 120.
Hope this helps!
5 0
3 years ago
Write the explicit<br> rule for the nth term.<br> Then find a71.<br> {O, -8, -16, -24 ...}
yulyashka [42]

Answer:

Step-by-step explanation:

{0, -8, -16, -24,...} here you add -8 each time so the rule is

a_{1} = 0, a_{n} = a_{n-1} -8

the 71 term is

a_{71} = 0 + (71 - 1) * (-8) = 70 * (-8) = -560

3 0
3 years ago
On a scale drawing of a rectangular closet, the length is 125 inches and the width is 3 inches.
katovenus [111]
Scale Factor 1: 42

-----------------------------------------------------
Find actual length for 125 inches:
------------------------------------------------------
125 x 42 = 5250 inches

------------------------------------------------------
Find actual length for 3 inches:
------------------------------------------------------
3 x 42 = 126 inches

------------------------------------------------------
Dimension of the actual closet:
------------------------------------------------------
5250 inches by 126 inches
7 0
3 years ago
An object is propelled upward from the top of a 300 foot building. The path that the object takes as it falls to the ground can
serg [7]

Answer:

As per the statement:

The path that the object takes as it falls to the ground can be modeled by:

h =-16t^2 + 80t + 300

where

h is the height of the objects and

t is the time (in seconds)

At t = 0 , h = 300 ft

When the objects hit the ground, h = 0

then;

-16t^2+80t+300=0

For a quadratic equation: ax^2+bx+c=0         ......[1]

the solution for the equation is given by:

x = \frac{-b\pm \sqrt{b^2-4ac}}{2a}

On comparing the given equation with [1] we have;  

a = -16 ,b = 80 and c = 300

then;

t= \frac{-80\pm \sqrt{(80)^2-4(-16)(300)}}{2(-16)}

t= \frac{-80\pm \sqrt{6400+19200}}{-32}

t= \frac{-80\pm \sqrt{25600}}{-32}  

Simplify:

t = -\frac{5}{2} = -2.5 sec and t = \frac{15}{2} = 7.5 sec

Time can't be in negative;

therefore, the time it took the object to hit the ground is 7.5 sec

8 0
3 years ago
Can someone help me round these two numbers? I completely forgot how ‍
tigry1 [53]

Answer:

Step-by-step explanation:

If you are rounding to nearest tenth

2.6  1.9

Nearest hundredth

2.6   1.87

If the number to the right of the one you want to round is 5 or above, you go up a number. If it's below, you go down 1.

Hope this helps.

5 0
2 years ago
Other questions:
  • Which of the following is the factored form of the given equation?
    5·2 answers
  • What is the GCF of 28 and 16
    6·2 answers
  • How to solve x + 5y = 8x - 20
    9·1 answer
  • A cylinder has a volume of 2457 cubic units and a height of 5 units. The diameter of the cylinder is?
    13·1 answer
  • Smallest 3 digit number that is divisible by 3 different prime numbers
    8·1 answer
  • PLEASE HELP DUE IN 15 MNUTES MARKING BRAINLIEST AND 15 POINTS YOU DONT HAVE TO EXPLAIN MUCH
    13·1 answer
  • 2i^20 + i^42<br> i^101 - i^2<br><br> Show Work
    9·1 answer
  • Consider the equation.
    15·1 answer
  • What expression is equivalent to 2 - 35
    13·1 answer
  • Will give BRAINLIEST if answered
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!