Factor this polynomial.
- 2x2 - 7x-3
O A. (-2x + 1)(x + 3)
O B. (2x - 3)(x - 1)
O C. (2x + 1)(x-3)
O D.-1(2x + 1)(x+3)

Answer:

https://www.symbolab.com/

Step-by-step explanation:

it will help trust me

Answer:

a

Step-by-step explanation:

just took the test

Answer:

Step-by-step explanation:

7² + 7² = 9²

49 + 49 = 81

98 = 81

false

a) Using the given recurrence,

[tex]x_2 = \dfrac{{x_1}^3-1}4 = \dfrac{(-1)^3-1}4 = -\dfrac12 = -0.5[/tex]

[tex]x_3 = \dfrac{{x_2}^3-1}4 = \dfrac{\left(-\frac12\right)^3-1}4 = -\dfrac9{32} = -0.28125[/tex]

b) Proceeding as above, you'll find that successive values of [tex]x_n[/tex], starting at n = 7, gravitate towards a solution of about -0.254102.

Answer:

The area of the dilated figure is the area of the original figure multiplied by the square of the scale factor.

Step-by-step explanation:

Answer:

D/a=c-b

(D/a)+b=c

That's the answer

Step-by-step explanation:

Hey man! I understand why it might be a little frustrating with those bots. Recently there has been an upsurge with them. The moderators are dealing with it. Also the answer to the question is 28994137165

Answer:

[tex](4^3)^3=262144\\4^3*4^3=4096[/tex]

Step-by-step explanation:

Answer:

For the first question she would get 400 miles total by 5 PM and for the second question, he gets $25 dollars per lawn (at least I think that's what the question means)

Step-by-step explanation:

1st question: Since they get 50 miles per hour because 4-1 equals 3. 350-200 equals 150. 150/3 = 50 miles per hour

2nd question: 100/4 = 25

Answer:

When x = -2 in (x² + 4)/2, 4 is the result.

Step-by-step explanation:

(x² + 4)/2

Substitute value into varaible.

((-2)² + 4)/2

Square -2. Remeber that (-x)² = x²

(4 + 4)/2

Add 4 and 4.

8/2

Divide 8 by 2.

4

IF there was only 5/8 of the pizza left, and each person gets 1 slice for 5 friends, then each friend gets A - 1/8 of the pizza.

I hope this helps! :)

Answer:

1 /8

Step-by-step explanation:

Answer:

the answer is a

Step-by-step explanation:

2/6=1/3 therefore 4/6+1/3=6/6

Answer:

Six sixths or 1

Step-by-step explanation:

Hope this helps

Answer:

37.5

Step-by-step explanation:

Answer:

For the first one x=5

Step-by-step explanation:

25*5=125-3=122. making the missing angle 58, 180-122=58. 6*5=30-1=29. 29+93+58=180.

Sorry I didn't solve the second one, I might afterward.

Answer:

  19)  x = 5

  20) x = 11

Step-by-step explanation:

The applicable relation in each case is that the exterior angle is equal to the sum of the remote interior angles.

__

25x -3 = 93 +(6x -1) . . . . . use the known relationship

19x = 95 . . . . . . . . . . . . add 3 -6x and simplify

x = 5 . . . . . . . . . . . .  divide by 19

__

12x -7 = 45 +(8x -8) . . . . . use the known relationship

4x = 44 . . . . . . . . . . . . . add 7-8x and simplify

x = 11 . . . . . . . . . . . . divide by 4

9514 1404 393

Answer:

  1/8

Step-by-step explanation:

1 pound is 16 ounces, so 2 pounds is 32 ounces.

  (4 oz) / (2 lb) = (4 oz) / (32 oz) = 4/32 = 1/8

The solution of the given equation 2x + 5 = 3x + 2 is 3.

The definition of an equation in algebra is a mathematical statement that demonstrates the equality of 2 mathematical expressions.

The equation must be constrained with some constraints.

As per the given equation,

2x + 5 = 3x + 2

2x + 5 - 2x = 3x + 2 - 2x

2x - 2x + 5 = 3x  - 2x + 2

5 = x + 2

5 - 2 = x + 2 - 2

3 = x

Hence "The solution of the given equation 2x + 5 = 3x + 2 is 3".

For more about the equation,

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#SPJ2

g ( x ) = -f-4

I'm sorry if this is wrong I think that's it but I kinda suck at functions

Answer:

decrease 3%

Step-by-step explanation:

sana makatulongggg

Answer:

12 /67

Step-by-step explanation:

I added everything up to get 67 then I added independent and green together to get 12

We want to find the absolute difference between the greatest and the least of 3 consecutive terms of an arithmetic sequence that meet some given criteria. We will get that the difference is 3.88 or 12.88.

We know that the difference between any pair of two consecutive terms in an arithmetic sequence is a constant.

So if that difference is D, we can write 3 consecutive terms as:

A, A + D, A + 2*D

The sum must be equal to 27, then we have:

A + (A + D) + (A + 2*D) = 27

And the sum of their squares is equal to 293, then we have:

A^2 + (A + D)^2 + (A + 2*D)^2 = 293

If we simplify these two equations we get:

3*A + 2*D = 27

3*A^2 + 6*D*A + 5*D^2 = 293

To solve this, we just need to isolate one of the variables in the first equation and then replace that in the other one.

3*A = 27 - 2*D

A = (27 - 2*D)/3 = 9 - (2/3)*D

Replacing that on the other equation we get:

3*(9 - (2/3)*D)^2 + 6*(9 - (2/3)*D)*D + 5*D^2 = 293

Now we can solve this for D:

3*(81 - 2*9*(2/3)*D + D^2) + 54*D - 4*D^2 + 5*D^2 = 293

(243 - 293) + 18*D + 4*D^2 = 0

-50 + 18*D + 4*D^2 = 0

That is just a quadratic equation, the solutions are given by:

[tex]D = \frac{-18 \pm \sqrt{18^2 - 4*4*(-50)} }{2*4} \\\\D = \frac{-18 \pm 33.53}{8}[/tex]

Then we have two possible values for D, we take the positive one to get:

D = (-18 + 33.53)/8 = 1.94

And the difference between the greatest and least of these 3 numbers is twice the common difference, so is equal to 2*D = 2*1.94 = 3.88

If instead we take the other solution, we get:

D = (-18 - 33.53)/8 = -6.44

Then the absolute difference is -2*D = -2*-6.44 = 12.88

If you want to learn more, you can read:

https://brainly.com/question/25715593

Answer:

20m-60 = 280

Step-by-step explanation:

1. Start off defineing a variable, let’s call it m for months.

2. We know that she saves 20$ every month, so we can just divide the total to find the number of months. But, she withdrew $60. We can add those back to get the total she saved. So we have

280 + 60 = 340

Then we can divide by 20:

340/20 = 17.

So the equation would be

20m - 60 = 280.

I hope this helps!

The rate of change of the depth of water in the tank when the tank is half

filled can be found using chain rule of differentiation.

When the tank is half filled, the depth of the water is changing at  1.213 ×

10⁻² ft.³/hour.

Reasons:

The given parameter are;

Height of the conical tank, h = 8 feet

Diameter of the conical tank, d = 10 feet

Rate at which water is being pumped into the tank, = 3/5 ft.³/hr.

Required:

The rate at which the depth of the water in the tank is changing when the

tank is half full.

Solution:

The radius of the tank, r = d ÷ 2

∴ r = 10 ft. ÷ 2 = 5 ft.

Using similar triangles, we have;

[tex]\dfrac{r}{h} = \dfrac{5}{8}[/tex]

The volume of the tank is therefore;

[tex]V = \mathbf{\dfrac{1}{3} \cdot \pi \cdot r^2 \cdot h}[/tex]

[tex]r = \dfrac{5}{8} \times h[/tex]

Therefore;

[tex]V = \dfrac{1}{3} \cdot \pi \cdot \left( \dfrac{5}{8} \times h\right)^2 \cdot h = \dfrac{25 \cdot h^3 \cdot \pi}{192}[/tex]

By chain rule of differentiation, we have;

[tex]\dfrac{dV}{dt} = \mathbf{\dfrac{dV}{dh} \cdot \dfrac{dh}{dt}}[/tex]

[tex]\dfrac{dV}{dh}=\dfrac{d}{h} \left( \dfrac{25 \cdot h^3 \cdot \pi}{192} \right) = \mathbf{\dfrac{25 \cdot h^2 \cdot \pi}{64}}[/tex]

[tex]\dfrac{dV}{dt} = \dfrac{3}{5} \ ft.^3/hour[/tex]

Which gives;

[tex]\dfrac{3}{5} = \mathbf{\dfrac{25 \cdot h^2 \cdot \pi}{64} \times \dfrac{dh}{dt}}[/tex]

When the tank is half filled, we have;

[tex]V_{1/2} = \dfrac{1}{2} \times \dfrac{1}{3} \times \pi \times 5^2 \times 8 =\mathbf{ \dfrac{25 \cdot h^3 \cdot \pi}{ 192}}[/tex]

Solving gives;

h³ = 256

h = ∛256

[tex]\dfrac{3}{5} \times \dfrac{64}{25 \cdot h^2 \cdot \pi} = \dfrac{dh}{dt}[/tex]

Which gives;

[tex]\dfrac{dh}{dt} = \dfrac{3}{5} \times \dfrac{64}{25 \cdot (\sqrt[3]{256}) ^2 \cdot \pi} \approx \mathbf{1.213\times 10^{-2}}[/tex]

When the tank is half filled, the depth of the water is changing at  1.213 × 10⁻² ft.³/hour.

Learn more here:

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Answer:

(x+4)(x-3)

Step-by-step explanation:

You have to find factors of 12 that also add together to make 1 (coefficient of x is 1) and factors that multiply together to make x^2.

4×-3=-12

4+-3=1

x×x=x^2

Answer:

Step-by-step explanation:

(2.2×10^4)*(7.1×10³)

=(2.2×7.1)×10{4+3}

=15.62×10^7

=1.562×10^8

Answer:

Step-by-step explanation:

$794.95(1.0875) = 864.508125 = $864.51

Answer:

the answer is -Xax.

Step-by-step explanation:

Answer:

55/63

Step-by-step explanation:

Answer:

16/52 or 16/54

Step-by-step explanation:

2 blacks 2 reds

4 colours

4 kings

4 queens

4 jacks

4 ace

16 total of ‘em

and number of cards in Deck is 52, 54 if counted 2 jokers