3x - 5x^2


Not able to submit without it being 20 characters :/

Answer:

Step-by-step explanation:

The sum of the angles in a triangle is always 180 degrees.

40+3x+180-5x+10=180

-2x+50=0

-2x=-50

x=25

Again using the fact that the angles must have a sum of 180

40+3x+a=180

40+3(25)+a=180

40+75+a=180

a+115=180

a=65

So angle 1 is 65 degrees.

Answer:

ik im late but the answer (for k12, right?) is 0, 0 and 2, 1

Answer: The vertex is (0,0) and another plot could be (4,4)

Step-by-step explanation:

Answer:

$90

Step-by-step explanation:

Given data

Price= $900

Rate= 25%

Time= 8 years

Let us apply the compounding formula

A= P(1-r)^t    >>>>note that the negative sign is because of the depreciation

substitute

A= 900(1-0.25)^8

A= 900(0.75)^8

A= 900*0.100

A= $90

Hence the value of the car after 8 years will be  $90

Answer:

V = 900π ≈ 286.47 units³

Step-by-step explanation:

C = 2πr

12 = 2πr

r = 12/2π = 6/π

V = 2πr²h

V = π(6/π)²(25) = π(36/π²)(25)

V = 36/π(25) = 900/π ≈ 286.47

Answer:

The height is 4 cm

Step-by-step explanation:

V = (pie) x radius² x height

615.44 cm³ = (3.14) x 7² x h

h = 615.44 cm³/(3.14 x 49)

h = 615.44 cm³/153.86

h = 4 cm²

Answer:

We just need the equations to equal the same, which is y.

5+1.10x=y

3+1.50x=y

5+1.10x= 3+1.50x

Let's get x by itself by subtract 3 from both sides.

2+1.10x= 1.50x

Now subtract 1.10x from both sides.

2= 0.4x

Now divide each side by 0.4

5=X

So, at 5 games they're the same cost. Let's find the cost.

5+1.1(5)= 5+5.5=10.50

3+1.5(5)=3+7.5= 10.50

So, at 5 games, they are $10.50.

Hope this helps! :)

Answer:

136150

Step-by-step explanation:

One additional charge is 350

389 call charge-(350x389)

Therefore, total charge is 136150.

Answer: 90

Step-by-step explanation:

40 % = 0.40. X = number of pigeons. 0.4x =36

X = 36/0.4 = 90

Answer: x=1, y=5

Step-by-step explanation:

Answer: Samsung Galaxy S12

Answer:

S₁₂ = 531440

Step-by-step explanation:

There is a common ratio between consecutive terms, that is

r = 6 ÷ 2 = 18 ÷ 6 = 3

This indicates the sequence is geometric with sum to n terms

[tex]S_{n}[/tex] = [tex]\frac{a(r^n-1)}{r-1}[/tex] ( r ≠ 1 )

where a is the first term and r the common ratio

Here a = 2 and r = 3 , then

S₁₂ = [tex]\frac{2(3^{12}-1) }{3-1}[/tex]

     = [tex]\frac{2(531441-1)}{2}[/tex]

     = 531441 - 1

     = 531440

Answer:

1/2

Step-by-step explanation:

Answer:

2.5π

Step-by-step explanation:

First, let's find the circumference of the circle. The circumference is equal to dπ, or the diameter times π.

Knowing the diameter is 10, we can easily find that the circumference is 10π.

10π is the entire circumference, but we only need 90° of the circle. If the whole circle is 360°, then that means the portion we need is 90°/360°, which is 1/4.

1/4 times 10π is equal to 2.5π.

2.5π is the arc length.

No.

[tex]\sqrt{45}=3\sqrt{5} \\2\sqrt{20} =2\sqrt5}[/tex]

If you add them up you DO NOT GET [tex]5\sqrt{5}.[/tex] According to mathematics, it equals to [tex]7\sqrt{5}[/tex].

Answer:

302

Step-by-step explanation:

7*13*2 + 3*7*2 + 3*13*2 = 302

Answer: for -10 + 4 the answer is -6

for -7 - 11 the answer is -18

Step-by-step explanation:

For -10+4 all you do is start at -10 and go up 4 to -6 (-9, -8, -7, -6)

and for -7 - 11 you start at 7 and just go down (but the numbers get bigger) to -18 (-8, -9, -10, -11, -12, -13, -14, -15, -16, -17, -18)

Answer:

Wendy must mix .25 with .75

Step-by-step explanation:

Because 1 is a third of 3 which makes the process for the decimals.

Answer:

0.25 gallon of green paint

Step-by-step explanation:

3 gallons of white paint/1 gallon of green paint = 0.75 gallons of white paint

1 gallon of green paint/ 3 gallons of white paint = 0.25 gallons of green paint

Decimals should add up to 1.00, so 0.75 + 0.25 = 1.00

You can check your answer by 1.00 - 0.25 = 0.75

Answer:

14.99

Step-by-step explanation:

Answer:

Metal

Step-by-step explanation:

9514 1404 393

Answer:

  $283.53

Step-by-step explanation:

The compound interest formula is useful.

  A = P(1 +r/12)^(12t)

gives the amount A when principal P is invested at annual rate r compounded monthly for t years.

Using your values, this is ...

  A = $200(1 +0.07/12)^(12·5) ≈ $283.53

The investment would be worth $283.53 after 5 years.

Answer:

$280.51

Step-by-step explanation:

just took this

Answer:

9 cars are red

Step-by-step explanation:

45 x 0.2 = 9

Answer:

9 cars

Step-by-step explanation:

0.2*45

Answer:

Solution for If f(x) = 2x – 6 and g(x) = x – 2x2, find each value. f(2)

The required value of each function is

f(h + 9) = 2(h + 6)

g(h + 9) = -(2h + 19)(h - 9)

In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y.

Now the given functions are,

f(x) = 2x – 6

g(x) = x – 2x²

Now putting x = h + 9 in f(x) and g(x)we get,

f(h + 9) = 2(h + 9) – 6

⇒ f(h + 9) = 2h + 18 – 6

⇒ f(h + 9) = 2h + 12

⇒ f(h + 9) = 2(h + 6)

and

g(h + 9) = (h + 9) – 2(h + 9)²

⇒ g(h + 9) = h + 9 – 2(h² + 81 + 18h)

⇒ g(h + 9) = h + 9 – 2h² + 162 + 36h

⇒ g(h + 9) = -2h² + 37h + 171

⇒ g(h + 9) = -(2h + 19)(h - 9)

Thus, the required value of each function is

f(h + 9) = 2(h + 6)

g(h + 9) = -(2h + 19)(h - 9)

To learn more about function :

https://brainly.com/question/17068704

#SPJ2

Answer:

A) (5)(0.6) x 7  = 3 x 7 =21

B) (C) (15) + 8

C) 4. (8 + 2) = 2  = 4(10)

D) 14 + 4(2 + 3)​  = 14 + 4(5) = 14 + 20 =34

Sorry not clear your question

Step-by-step explanation: