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
vova2212 [387]
3 years ago
12

What is the factored form of this expression? 18x2 - 50

Mathematics
2 answers:
Firdavs [7]3 years ago
8 0

Answer:

first you should multiply 18 and 2 then it will come 36 then subtract 36 and 50 then the answer will come -14

Neporo4naja [7]3 years ago
5 0
The answer to this question is “-14”
You might be interested in
Convert from rectangular to polar coordinates:Note: Choose r and θ such that r is non-negative and 0 ≤ θ < 2πa. (6,0)b. (9,9/
Anuta_ua [19.1K]

Answer:

The polar coordinates are as follow:

a. (6,2π)

b. (18, π/3)

c. (2√2 , 3π/4)

d. (2, 5π /6)

Step-by-step explanation:

To convert the rectangular coordinates into polar coordinates, we need to calculate r, θ .

To calculate r, we use Pythagorean theorem:

r = \sqrt{ x^{2} +y^{2} } ---- (1)

To calculate the θ, first we will find out the θ '  using the inverse of cosine as it is easy to calculate.

So,    θ '  = cos ⁻¹  (x/r)

If  y  ≥  0  then  θ  =  ∅

If  y  <  0  then  θ  =  2 π  −  ∅

For a. (6,0)

Sol:

Using the formula in equation (1). we get the value of r as:

r = \sqrt{6^{2} + 0^{2}  }

r = 6

And ∅  = cos ⁻¹  (x/r)

∅ = cos ⁻¹  (6/6)

∅  =cos ⁻¹   (1) = 2π

As If  y  ≥  0  then  θ  =  ∅

So ∅ = 2π

The polar coordinates are (6,2π)

For a. (9,9/\sqrt{3})

Sol:

r = 9 + 3(3) = 18

and ∅  = cos ⁻¹  (x/r)

∅ = cos ⁻¹  (9/18)

∅ = cos ⁻¹   (1/2) = π/3

As  If  y  ≥  0  then  θ  =  ∅

then θ  = π/3

The polar coordinates are (18, π/3)

For (-2,2)

Sol:

r =√( (-2)²+(2)² )

r = 2 √2

and ∅  = cos ⁻¹  (x/r)

∅ = cos ⁻¹  (-2/ 2 √2)

∅ = 3π/4

As  If  y  ≥  0  then  θ  =  ∅

then   θ  = 3π/4

The polar coordinates are (2√2 , 3π/4)

For (-√3, 1)

Sol:

r = √ ((-√3)² + 1²)

r = 2

and ∅  = cos ⁻¹  (x/r)

∅  = cos ⁻¹ ( -√3/2)

∅  = 5π /6

As  If  y  ≥  0  then  θ  =  ∅

So  θ  = 5π /6

The polar coordinates are (2, 5π /6)

6 0
3 years ago
Kaitlyn's older brother borrowed money for school he took out a loan that charges 6% simple interest he will end up paying 720 a
tankabanditka [31]

Answer: 2000

Step-by-step explanation:

Simple interest is calculated as:

(Principal × Rate × Time) / 100

We then slot the value into the formula. This would be:

720 = (P × 6 × 6)/100

720 × 100 = 36P

72000 = 36P

Principal = 72000/36

Principal = 2000

4 0
3 years ago
Which of the following are point slope equations of the line going through (-3, -5) and (2, 4). Help is appreciated!​
ki77a [65]

Answer:

A and F

Step-by-step explanation:

first figure out the slope.

4-(-5)/2-(-3)= 9/5

slope: 9/5

y-y1=m(x-x1)

you substitute either coordinate for the second variables. we automatically take out any slopes that have a negative because the slope is positive.

C, D, E all have negative slopes so it is wrong.

B does not work because a negative times a negative is a positive. the equation shows it to be negative so it is wrong.

A & F fit the solution.

8 0
3 years ago
Pita​ Corporation's management has budgeted the following amounts for its next fiscal​ year: Total fixed expenses $490,000 Selli
Ede4ka [16]

Answer:

let me tell you firstly i am juat writing this

Step-by-step explanation:

for absolutely no rwason whatsoevwr lol

ao ywah get some hwlp from a pro

3 0
3 years ago
Write the equation of a piecewise function with a jump discontinuity at x =3. Then, determine which step of the 3-step test for
seraphim [82]

Answer:

Here's a possible example:

Step-by-step explanation:

f(x) =\begin{cases} x & \quad x < 3\\x+3 & \quad x \geq 3\\\end{cases}

Each piece is linear, so the pieces are continuous by themselves.

We need consider only the point at which the pieces meet (x = 3).

\displaystyle \lim_{x \longrightarrow 3^{-}} f(x) = \lim_{x \longrightarrow 3^{-}} x = 3\\\\\displaystyle \lim_{x \longrightarrow 3^{+}} f(x) = \lim_{x \longrightarrow 3^{+}} x+3 = 6\\\\f(3) = x + 3 = 6\\\\\displaystyle \lim_{x \longrightarrow 3^{-}} f(x) \neq f(3)

The left-hand limit does not equal ƒ(x), so there is a jump discontinuity at x =3.

5 0
3 years ago
Other questions:
  • 5x100+4x10+6x1+2x(1/10)+8x(1/1000) write in standard form
    14·1 answer
  • Katelyn bought 3 packages of ground beef.The packages weighed 2.65 lbs,1.85 lbs,and 2.46 lbs.She divided the ground beef into 4
    14·1 answer
  • Last year, a large trucking company delivered  tons of goods with an average value of $23,000 per ton. What was the total value
    5·1 answer
  • Gracie has 5 pet bunnies that love to eat whole carrots. She has 39 carrots to feed the bunnies. How many carrots will each bunn
    6·2 answers
  • I don’t understand this at all...can someone give me the answer or help me figure it out!?
    8·1 answer
  • Derek’s favorite clothing store is having their annual fall sale. All clothing is 25 percent off. A shirt he really likes has an
    11·1 answer
  • Is 40(2x-16y) equivalent to 42-56y
    11·1 answer
  • Question<br> -6 X 7<br> I will pay you back if you answer this correctly.
    8·2 answers
  • If f(1) = 5 and f(n) = 4f(n − 1) - 2 then find the value of f(5).​
    6·1 answer
  • Christine is working on learning new recipes because she wants to be prepared when she leaves for college. after her first week,
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!