please help with both of them​

Answer:

10 · 13 (2 + 3 · [tex]10^{9}[/tex] w)

Step-by-step explanation:

hope this helps!!!

Answer:

[tex]45x^2+198xo+978x+79[/tex]

Step-by-step explanation:

I start my grouping the like terms.[tex]=45x^2+45xo+153xo+4x-135x+1109x+32+47[/tex]

Then, I add the similar elements.

[tex]4x-135x+1109x=978x[/tex]

[tex]=45x^2+198xo+978x+32+47[/tex]

Finally, I added the numbers up.

[tex]=45x^2+198xo+978x+79[/tex]

Answer:

A and C

Step-by-step explanation:

Because coeficcients are numbers that come before a variable

Answer:

length=14 width=5

Step-by-step explanation:

since the length is 4 more then subtract 4*2=8 which would equal 30 divide that by two since a rectangle has 4 sides two of which are the same,

than divide it by the getting 5 which is the width.

subtract 5*2=10 from 38 which would = 28

28divided by 2 is the length which is 14

Answer:

The answer are

Width=5ft

Length=14ft

Step-by-step explanation:

P=2(L+B)

P/2=2(L+B)/2

P/2=L+B

L=4+2W

38/2=4+2W+W

19=4+3W

3W=19-4

3W=15

divide both sides by 3

3W/3=15/3

W=5ft

L=4+2W

L=4+2(5)

L=4+10

L=14ft

Answer:

its proportionality

Step-by-step explanation:

Answer:

[tex]Slope = -1[/tex]

[tex]y = -2[/tex] --- y intercept

[tex]x = -2[/tex] ---- x intercept

[tex]y = -x - 2[/tex] --- equation

Step-by-step explanation:

Given

Represent temperature with y and time with x

When

[tex]y = 0F; x = 2hrs\ before\ sunsets[/tex]

[tex]y = -4F; x = 2hrs\ after\ sunset[/tex]

Solving Slope;

[tex]Slope = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

[tex]Slope = \frac{-4 - 0}{2 - (-2)}[/tex]

[tex]Slope = \frac{-4 - 0}{2 +2}[/tex]

[tex]Slope = \frac{-4}{4}[/tex]

[tex]Slope = -1[/tex]

Using

[tex]Slope = \frac{y - y_1}{x - x_1}[/tex], we can get the equation

Where

[tex]Slope = -1[/tex]

[tex]x_1 = -2[/tex]

[tex]y_1 = 0[/tex]

This gives:

[tex]-1 = \frac{y - 0}{x -(-2)}[/tex]

[tex]-1 = \frac{y}{x +2}[/tex]

Cross multiply

[tex]y = -x - 2[/tex]

Take x as 0; to solve the y intercept

[tex]y = -0 - 2[/tex]

[tex]y = -2[/tex]

Take y as 0; to solve the x intercept

[tex]0 = -x -2[/tex]

[tex]x = -2[/tex]

Answer:Answer:

--- y intercept

---- x intercept

--- equation

Step-by-step explanation:

Given

Represent temperature with y and time with x

When

Solving Slope;

Using

, we can get the equation

Where

This gives:

Cross multiply

Take x as 0; to solve the y intercept

Take y as 0; to solve the x intercept

Step-by-step explanation:

Answer:

10 eggs

Step-by-step explanation:

5 cartons multiplied by 12 eggs each equals 60 eggs in total.

Therefore 5/6 would be equal to 50/60 since we multiply the denominator and numerator by 10

As a result 10 of the eggs are not brown

Answer:

4 meters and 20 centimeters will be 420 centimeters

Step-by-step explanation:

Answer:

420 (cm)

Step-by-step explanation:

1 meter = 100 centimeters.

so,

4 meters = 400 centimeters

400 + 20 equals 420cm

Answer:

is 8

Step-by-step explanation:

Answer:

|a| = 0.447

|b| = 0.547

|c| = 0.707

Step-by-step explanation:

From available data

Ψ1 = Ee = 10eV probability = 0.2

Ψ2 = Ee = 16eV, probability = 0.3

Ψ3 = Ee = 34eV, probability = 0.5

The magnitude of a

= a² = 0.2

= a = √0.2

|a| = 0.447

The magnitude of b

b² = 0.3

b = √0.3

|b| = 0.547

The magnitude of c

c² = 0.5

c = √0.5

|c| = 0.707

So in conclusion we have magnitude of a = 0.447

b = 0.547

c = 0.707

The magnitude of a , b and c are [tex]0.447, 0.547[/tex] and [tex]0.707[/tex] respectively.

The electron's wave function is given as,

          [tex]\psi=a\psi _{1}+b \psi _{2}+c\psi _ {3}[/tex]

three values of the electron kinetic energy is given as,

[tex]\psi _{1}[/tex] has E = 10 eV, with probability 0.2

[tex]\psi _{2}[/tex] has E = 16 eV, with probability 0.3.

[tex]\psi _{3}[/tex] has E= 34 eV, with probability 0.5.

The value of a, b and c shown below,

    [tex]a^{2}=0.2\\ \\a=\sqrt{0.2}=0.447\\ \\b=\sqrt{0.3}=0.547\\ \\c=\sqrt{0.5}=0.707[/tex]

Learn more about the Kinetic energy here:

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Answer:

18 practices

Step-by-step explanation:

9.63 / 9 = 1.07

19.26 - 1.07 = 18

Answer:

[tex]a = 145\ cm[/tex]

Step-by-step explanation:

Given

[tex]a + b + c = 445[/tex]

[tex]a = 45 + b[/tex]

[tex]b = \frac{1}{2}c[/tex]

Required

Determine the length of a

Solve for c in [tex]b = \frac{1}{2}c[/tex]

[tex]2 * b = \frac{1}{2}c * 2[/tex]

[tex]2b = c[/tex]

[tex]c = 2b[/tex]

Substitute [tex]c = 2b[/tex] and [tex]a = 45 + b[/tex] in [tex]a + b + c = 445[/tex]

[tex]a + b + c = 445[/tex]

[tex]45 + b + b + 2b = 445[/tex]

[tex]45 + 4b = 445[/tex]

Solve for 4b

[tex]4b = 445 - 45[/tex]

[tex]4b = 400[/tex]

Solve for b

[tex]b = 400/4[/tex]

[tex]b = 100[/tex]

Recall that: [tex]a = 45 + b[/tex]

[tex]a=45+100[/tex]

[tex]a = 145\ cm[/tex]

Answer:

Standard deviation, ∂ = 64.21 days

Mean = 429.21 days

Step-by-step explanation:

Given:

Mean lifespan = 71.45 years

Standard deviation = 12.35 years

Standard deviation, ∂ = x - µ / N

Where,

∂ = standard deviation

µ = mean life span

x = size of year

x = 70 years

Standard deviation, ∂ = x - µ / N

= 70 - (71.45 / 12.35)

= 70 - 5.79

= 64.21

Standard deviation, ∂ = 64.21 days

Mean = ∑x + standard deviation

∑x = 365

Mean = ∑x + standard deviation

= 365 + 64.21

= 429.21 days

Mean = 429.21 days

Answer:

-7k-4K=8-2k-8k

-11K = 8-10K             (combine like terms)

8 = -11k+10k              (move the -10 to combine like term with -11)

8 = -1k

k = 8/-1                      (isolate the k to find its value by dividing the 8)

k = -8

Answer:

[tex]\displaystyle f^{-1}(x)=\frac{1+x}{3x}[/tex]

Step-by-step explanation:

The Inverse of a Function

The procedure to find the inverse of the function is:

* Write the function as a two-variable equation:

[tex]\displaystyle y=\frac{1}{3x-1}[/tex]

* Solve the equation for x.

Multiply by 3x-1

[tex]y(3x-1)=1[/tex]

Divide by y:

[tex]\displaystyle 3x-1=\frac{1}{y}[/tex]

Sum 1:

[tex]\displaystyle 3x=\frac{1}{y}+1[/tex]

Operate the right side:

[tex]\displaystyle 3x=\frac{1+y}{y}[/tex]

Divide by 3:

[tex]\displaystyle x=\frac{1+y}{3y}[/tex]

* Swap the variables:

[tex]\displaystyle y=\frac{1+x}{3x}[/tex]

Write back into function form:

[tex]\boxed{\displaystyle f^{-1}(x)=\frac{1+x}{3x}}[/tex]

Answer:

k = 7

Step-by-step explanation:

Step 1: Write equation

-18 = 5 - (6k - 19)

Step 2: Solve for k

Distribute negative: -18 = 5 - 6k + 19

Combine like terms: -18 = -6k + 24

Subtract 24 on both sides: -42 = -6k

Divide both sides by -6: k = 7

Step 3: Check

Plug in k to verify it's a solution.

-18 = 5 - (6(7) - 19)

-18 = 5 - (42 - 19)

-18 = 5 - 23

-18 = -18

Answer:

rotation spins the shape around the origin while a reflection mirrors it across an axis. Two congruent figures are two figures that are Identical but in different locations. Travis is incorrect because when Travis changes the size he changes the shapes from being congruent to being similar. Adjacent angles are angles that share a wall and a vertex. The measure of angle y is 40 degrees. The measure of angle C is 95 degrees.

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

Answer:

85-9y= 7(4+y)

solve for y if you need to simplify

Circumference = 2 x radius x Pi

= 2 x 3 x 3.14

= 6 x 3.14

= 18.84 feet

Area = pi x r ^2

= 3.14 x 3^2

= 3.14 x 9

= 28.26 square feet

The circumference of the circle will be C= 18.84 ft and the area of the circle will be [tex]A=28.27 ft^2[/tex]

The area of the circle is defined as the quantity of the space covered by the circle in a two-dimensional plane.

It is given in the question ;

Radius of the circle = 3 ft.

The area of the circle is given by the formula;

[tex]A=\pi r^2[/tex]

[tex]A=\pi \times 3\times 3[/tex]

[tex]A= 28.27\ Ft ^2[/tex]

Circumference of the circle is given by

[tex]C=2\pi r[/tex]

[tex]C=2\pi\times 3[/tex]

[tex]C=18.84\ Ft[/tex]

Hence the circumference of the circle will be C= 18.84 ft and the area of the circle will be [tex]A=28.27 ft^2[/tex]

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Answer:

4

Step-by-step explanation:

Answer:

Step-by-step explanation:

Simplify 3√6 − 10√2 ⋅ √3

Answer:

multiply by 10 on both sides

that is to get rid of the denominator

Answer:

[tex]Max = 15[/tex]

Step-by-step explanation:

Given

[tex]s(y) = -2y^2 + 60y + 10[/tex]

Required

Determine number of items that gives maximum earnings;

The general form of a quadratic equation is:

[tex]s(y) = ay^2 + by + c[/tex]

And the maximum is calculated as:

[tex]Max = \frac{-b}{2a}[/tex] If a<0

Comparing [tex]s(y) = ay^2 + by + c[/tex] to [tex]s(y) = -2y^2 + 60y + 10[/tex]

We have that:

[tex]a = -2[/tex]     [tex]b = 60[/tex]   [tex]c = 10[/tex]

Substitute these values to

[tex]Max = \frac{-b}{2a}[/tex]

[tex]Max = \frac{-60}{2 * -2}[/tex]

[tex]Max = \frac{-60}{-4}[/tex]

[tex]Max = 15[/tex]

The number of item that maximizes the function is when y = 15

When you raise an exponential expression to another exponent, you multiply the exponents. We have 8*5 = 40 as the final exponent. The rule is (x^y)^z = x^(y*z). The base stays the same.

Statement A is not true because we should be adding the exponents. The rule is x^y*x^z = x^(y+z). Note how the bases are all the same. We'll use this rule for statement C to show that it is also false.

A similar rule is (x^y)/(x^z) = x^(y-z). We subtract the exponents this time. This rule is used to show that statement D is false.