help me please need help

missing lengths​

Answer:

a= 1/b-c

Step-by-step explanation:

Answer:

80+40x

Step-by-step explanation:

-5x2(2x2-4x-12)

-10(2x2-4x-12)

-20-20+40x+120

-40+120+40x

80+40x

Answer:

  (x, y) = (1 7/9, -2 1/9)

Step-by-step explanation:

If all you want is a solution, an appropriate calculator can provide that. The attachment shows the result of using a graphing calculator. (We have to know the fraction equivalents of the decimal values shown.)

The solution to the system is ...

  (x, y) = (1 7/9, -2 1/9)

__

The solution is approximately (2, -2).

Answer:

that would be -3 becuase it's the least negative out of all the choices

Step-by-step explanation:

Answer:

x² = 81 , x = ± 9

x² - 18x = 7 : x = 9 ± √(22)

Step-by-step explanation:

x² = 81

simply take the square root of both sides

x = ± 9

x² - 18x = 7

This question is a bit more complicated as there is a variable with a power as well as a variable with no power. To solve for x we are going to have to put the equation in quadratic form then solve using the quadratic equation

x² - 18x = 7

put the equation in quadratic form by subtracting 7 from both sides so that the equation is equal to 0

x² - 18x - 7 = 0

we can now solve for x using the quadratic equation

recall the quadratic equation : [tex]x=\frac{-b+\sqrt{b^2-4ac} }{2a}[/tex]

where the value of a,b and c are derived from the equation

remember the equation is in quadratic form ax² + bx + c = 0

so ax² + bx + c = 0 : x² - 18x - 7 = 0

knowing this we can assign variables, a = 1 , b = -18 and c = -7

now we plug in the variables into the quadratic equation

recall equation : [tex]x=\frac{-b+\sqrt{b^2-4ac} }{2a}[/tex]

a = 1 , b = -18 and c = -7

plug in values

[tex]x=\frac{-(-18)+\sqrt{(-18)^2-4(1)(-7)} }{2(1)}[/tex]

remove parenthesis

[tex]x=\frac{18+\sqrt{(-18)^2-4(1)(-7)} }{2(1)}[/tex]

simplify exponent

[tex]x=\frac{18+\sqrt{324-4(1)(-7)} }{2(1)}[/tex]

simplify multiplication in square root and on denominator

[tex]x=\frac{18+\sqrt{324+28} }{2}[/tex]

simplify addition

[tex]x=\frac{18+\sqrt{352} }{2}[/tex]

simplify radical

[tex]x=\frac{18+4\sqrt{22} }{2}[/tex]

simplify fraction

[tex]x=9+or-\sqrt{22}[/tex]

and we are done!

Answer:

The answer is that they both payed $9.00.

Step-by-step explanation:

The both payed $60.00, and 30% of that is $18.00.

( $60.00*.03=$18.00)

$18.00 divided by two (two people, James and Sarah) is $9.00.

So they both payed $9.00 individually.

Answer:

x≈3.35, or the square root of 11.

Step-by-step explanation:

Use the pythagorian therom. 3²+1.5²=x²

(Half of 3 is 1.5 and the line splits it in half)

The value of the quadratic equation is given by the formula. Then the value of x is 0.8968 and negative 2.23.

It is the method to separate the polynomial into parts and the parts will be in multiplication. And the value of the polynomial at this point will be zero.

The equation for the expression is given below.

3x² + 4x = 6

3x² + 4x - 6 = 0

we know that the formula

[tex]\rm x = \dfrac{-b\pm \sqrt{b^2-4ac}}{2a}[/tex]

Then we have

[tex]x = \dfrac{-4 \pm \sqrt{4^2-4*4*(-6)}}{2*3}\\\\x = \dfrac{-4 \pm \sqrt{112}}{6}\\\\x = 0.8968, \ -2.23[/tex]

More about the factorization link is given below.

https://brainly.com/question/6810544

The length of the segment AB is the number of units on AB, and the length of segment AB is 14.4 units

The points are given as:

A = (-1,7)

B = (11,-1)

The length of the segment is then calculated using:

AB = √(x₁ - x₂)² + (y₁ - y₂)²

So, we have:

AB = √(-1 - 11)² + (7 + 1)²

Evaluate the exponent

AB = √144 + 64

Evaluate the sum

AB = √208

Evaluate the exponent

AB = 14.4

Hence, the length of segment AB is 14.4 units

Read more about length at:

https://brainly.com/question/2217700

#SPJ1

hi my name not Jeff. ok?

Step-by-step explanation:

hi im not jeff

Answer:

The thickness of the paper doubles each fold: it's an exponential growth.

Step-by-step explanation:

breadth or width = 5cm

hope it helps...!!!

Answer:

D) As the amount of nutrients in the soil increases, the rate of plant growth increases.

Step-by-step explanation:

When there is more nutrients in the soil it makes the plant healthier and grow more. Also all of the other ones have no correlation to eachother or effect on another.

Answer:

2

Step-by-step explanation:

Answer:A≈1320.25ft²

Step-by-step explanation:

A=1

4πd2=1

4·π·412≈1320.25431ft²

The value of logarithm expression 2log₅(5x³) + (1/3)log₅(x² + 6) is simplified as log₅[{25x⁶}{∛(x² + 6)}].

Exponents can also be written as logarithms. The other number is equal to a logarithm with a number base. It's the exact inverse of the exponent function.

The logarithmic expression is given as

[tex]2\log _55x^3 + \dfrac{1}{3} \log _5(x^2 +6)[/tex]

We know that formulas

[tex]a \log b = \log b^a\\\\\log a + \log b = \log ab[/tex]

Then we have

[tex]\rightarrow \log _5(5x^3)^2 + \log _5(x^2 +6)^{1/3}\\\\\rightarrow \log _525x^6 + \log _5\sqrt[3]{(x^2 +6)}\\\\\rightarrow \log _5 25x^6 (\sqrt[3]{(x^2 +6)})[/tex]

More about the logarithm link is given below.

https://brainly.com/question/7302008

Answer:

c

Step-by-step explanation:

The error Alex made while simplifying the expression 7+(3x 1. 4)+5+2+(5x1. 4) is "he found the perimeter of the figure instead of the area".

The area of an object is the product of the length and width of the objects.

Alex added the dimensions of the grid instead of multiplying them.

7+(3x 1. 4)+5+2+(5x1. 4)

For instance,

Therefore, Alex found the perimeter of the figure instead of the area".

Learn more about area:

https://brainly.com/question/13048427

Answer:

[tex]56 \frac{1}{17} [/tex]

Step-by-step explanation:

[tex] 56 + \frac{1}{17} = \frac{56}{1} + \frac{1}{17} \\ \\ lcm \: of \: 17 \: and \: 1 \: = 17 \\ \\ \frac{952 + 1}{17} = \frac{953}{17} = 56 \frac{1}{17} [/tex]

Answer:

x-2/x

Step-by-step explanation:

¨/¨ means over

Answer:

(x-2)/x

Step-by-step explanation:

We can factor the numerator and denominator to see if anything simplifies.

[tex]\frac{(x-2) (x+5)}{x (x+5)}[/tex]

because (x-2)(x+5) = x² +5x-2x-10 = x² + 3x -10 and

               x(x+5) = x² +5x

Simplify further

[tex]\frac{x-2}{x}[/tex]

because [(x+5) /(x+5)] = 1

Answer:

Step-by-step explanation:

In Isosceles triangle base angles (angles oppoiste to equal sides) are congruent.

x + x + 98 = 180 {Angle sum proeprty of triangle}

   2x + 98 = 180   {Subtract 98 from both sides}

        2x = 180 - 98

       2x  = 82      {Divide both sides by 2}

        x   = 82/2

x = 41

Answer:

x = 41°

Step-by-step explanation:

An isosceles triangle has 2 opposite sides equal.

Therefore the angle opposite x is also x

Hence:

x + x + 98° = 180° (angles in a triangle add up to 180°)

2x + 98° = 180°

2x = 180° - 98°

2x = 82°

2x/2 = 82°/2

x = 41°

Answer:

b. 0.5

Step-by-step explanation:

Arranging the given data

Upon adding 37 to the data set,

Change in Median

Answer:

probably like 4 slices

Step-by-step explanation:

you figure if a toaster takes about 1-2 minutes to toast a piece of bread  and a toaster usually can fit 2 slices at a time i would say 4.

Answer:

If your stock gains over 20% from the ideal buy point within 3 weeks of a proper breakout, hold it for at least 8 weeks.

Step-by-step explanation:

the money doesn't get redistributed to someone else.

Answer:

12a −24b −4

Step-by-step explanation: