How do you factor 2n^2+3n-9
Answers
2n and n give 2n^2
-3 and 3 give -9
2n*3=6n ... (1)
n*(-3)=-3n ... (2)
(1)+(2)=3n
Group the factors that do not have an effect/interaction to each other from the above.
That is, 2n and -3, and n and 3
2n^2+3n-9=(2n-3)(n+3)
Related Questions
Rachael and Theodore plant a sunflower.Rachael predicts that it will grow 2/5 footper week, while Theodore predicts that itwill grow 3/4 foot per week. The sunflowergrows 4 1/2 feet in 7 1/2 weeks. Whichstatement is correct?
If 5x+6=10, what is the value of 10x+3? A) 4 B) 9 C) 11 D) 20
Jorge lives 6/8 mile from school and 2/8 mile from a ballpark how much farther does Jorge live from school than from the balloark
All number that are evenly divisible by both 6 and 14 are also divicible by?
Answers
The integer number 42 appears two times in a collection of the data. Then the mode of the data set will be 42.
What is the mode of the data?
Simply counting how several times each number looks in the data set can help you identify the mode, which is the integer that repeats the most frequently in the collected data. The figure with the largest total is the mode.
The data is given below.
37, 42, 39, 44, 47, 38, 42, 45, 49, 35
Arrange the data in ascending order, then we have
35, 37, 38, 39, 42, 42, 44, 45, 47, 49
The integer number 42 appears two times in a collection of the data. Then the mode of the data set will be 42.
More about the mode of the data link is given below.
#SPJ2
Answer:
mode = 42
Step-by-step explanation:
The mode is the value which occurs most often in the data set.
42 occurs twice, others only once, thus
mode = 42
Answers
r is equal to the total distance created by the rectangular coordinates of the complex number
r = Root(4^2 + (-4)^2) = Root(32) = 4 Root(2)
To find theta, if a > 0, use arctan(b/a), where:
a = the first number
b = the second number
arctan (-4/4) = -45 degrees (-0.7854 radians)
Your answer is 4 Root(2) (cos(-45) + i sin(-45))
Answers
Answer:
x = 2
Step-by-step explanation:
Step 1: Convert to math
5x + 1 = 3x + 5
Step 2: Solve for x
- Subtract 4x on both sides: 2x + 1 = 5
- Subtract 1 on both sides: 2x = 4
- Divide both sides by 2: x = 2
Step 3: Check
Plug in x to verify it's a solution.
5(2) + 1 = 3(2) + 5
10 + 1 = 6 + 5
11 = 11
Answer:
2
Step-by-step explanation:
there are 5 x's and 1 positive one of the left side, and 3 x's and five positive one's on the right side. when you put this into an equation, you get:
5x+1 = 3x+5
the first step to solving the equation is to subtract 3x from both sides:
5x+1 -3x = 3x+5 -3x
2x+1 = 5
next, subtract 1 from both sides:
2x+1 -1 = 5 -1
2x=4
finally, divide both sides by 2:
2x ÷2 = 4 ÷2
x=2
and the answer is: 2
Answers
Answer:
length = 20 m
width = 16m
Step-by-step explanation:
Length 20
Width 15
order to escape Earth's gravity is
given by v2 = 2GM, where G is a
constant. Solve for the object's
mass M.
Answers
Earth's gravity for the object's mass M is .
Here,
The velocity v that an object r units from Earth's center must have in order to escape Earth's gravity is given by,
We have to find, Earth's gravity for the object's mass M.
What is Velocity?
The distance covered by a body in a unit time in a particular direction is called velocity.
Now,
Earth's gravity is given by,
In terms of mass M,
⇒ .
So, Earth's gravity for the object's mass M is .
Learn more about the Velocity visit:
#SPJ2
Answer:
M=v^2r / 2G
Step-by-step explanation:
Open the file, it is solved for you, your welcome.
Answers
Answer:
19.2
Step-by-step explanation:
1st Case:
4 and 5 are legs of the right triangle.
Using the pythagorean therom: a^2+b^2=c^2
We can say that 4^2+5^2=x^2
16+25=x^2
41=x^2
x=√41
√41 is about 6.4
x=6.4
2nd Case
5 is the hypotenuse of the right triangle and 4 is the legs.
Using the pythagorean therom: a^2+b^2=c^2
We can say that 4^2+x^2=5^2
16+x^2=25
x^2=9
x=3
Final Step
We need to multiply the two possible lengths for x. So for case 1 the length of x was 6.4 and for case two the length was 3. 6.4*3=19.2
Anwser: 19.2