Brian spent 14 minutes washing the dishes. That was 35% of the total number of minutes he spent doing chores.

How many minutes did Brian spend doing chores?

Answer: h=60 feet

Step-by-step explanation:

h=4+60t-16t²

h(2)=4+(60)(2)-(16)(2)²

h(2)=4+120-(16)(2)(2)

h(2)=124-64

h(2)=60 feet

Answer:

F

Step-by-step explanation:

La respuesta es f porque la tasa vigente en el lado x es por 2 y la tasa vigente en el lado y es por 12.

By combining the like terms, the simplified form of the expression x(3-y)+y(x+6) is 3x+6y

Given,

The algebraic expression = x(3-y)+y(x+6)

Apply distributive property and expand the term

x(3-y)+y(x+6)=3x-xy+xy+6y

Combine like terms

3x-xy+xy+6y= 3x+6y

Hence, by combining the like terms, the simplified form of the expression x(3-y)+y(x+6) is 3x+6y

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Answer:

(2x2x2)*(2x2x2x2x2) so 8x32 = 256

Step-by-step explanation:

Answer: Simplify  {2}^{3}2

3

  to  88.

8x\times {2}^{5}

8x×2

5

2 Simplify  {2}^{5}2

5

  to  3232.

8x\times 32

8x×32

3 Simplify.

256x

Step-by-step explanation: hope this helps!!!!

The required simplified value of the quantity is  1 / 81. Option A is correct.

Given that,
To determine the simplified value of the quantity one-third raised to the second power times one-third raised to the zero power end quantity all raised to the second power.

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here,
According to the question,
= [(1 / 3)² + ( 1 / 3)⁰]²
Simplification,
= (1 / 3)²°²
= (1 / 3)⁴
= 1⁴ / 3⁴
= 1 / 81  (since 3⁴ = 81)

Thus, the required simplified value of the quantity is  1 / 81. Option A is correct.

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Answer:

Step-by-step explanation:

Simplify:

31−(5−3⋅4)*2+26÷4=

31-(5-12)*2+6.5=

31-(-7)*2+6.5=

31+14+6.5=

51.5

Step-by-step explanation:

$2.88 per pound

so, then how much for e.g. 2 pounds ?

right : the price for 1 pound plus 1 pound = 2×$2.88 = $5.76

and so on.

therefore, 3.9 pound cost :

3.9 × $2.88 = $11.232 ≈ $11.23

Answer:

11.232

Step-by-step explanation:

3.9×2.88=11.232

Answer: -8

Step-by-step explanation:

The value of expression is 33

For evaluating the expression, we will keep the given values of variables in the expression. Further solving will be done according to the mathematical operators.

Rewriting the equation -

Value = 11 (a + 2b) + 2 (a - 2b)

Now keeping the values of variables in expression -

Value = 11 (-3 + 2×4) + 2 (-3 - 2×4)

Firstly solving the brackets

Value = 11 ( -3 + 8) + 2 (-3 - 8)

Value = 11 (5) + 2 (-11)

Performing multiplication

Value = 55 - 22

Performing subtraction

Value = 33

Hence, the expression for the given values of the variables is 33.

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answer:

5

explanation:

(5*5) + 3=28

(7*5) - 7= 28

Answer:

2x² - 25x + 90

Step-by-step explanation:

→ Replace every x in 2x² + 5x + 15 with -x + 5

2 × ( -x + 5 )² + 5 ( -x + 5 ) + 15

→ Simplify

2 ( x² - 10x + 25 ) - 5x + 25 + 15

→ Expand

2x² - 20x + 50 - 5x + 40

→ Simplify

2x² -25x + 90

[tex]\textsf{Hi Brainy User, I'm Here to Help you!}[/tex]

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

[tex]\textsf{Parallel lines have the same slope, thus:}[/tex]

[tex].\qquad\bullet\sf{Slope\:of\:the\:line\:that's\:parallel\:to\:the\:given\:line: \dfrac{1}{3}}[/tex]

[tex]\textsf{Next, we'll apply the \textbf{Point-Slope Formula:}}[/tex]

[tex].\qquad\bullet\sf{y-y_1=m(x-x_1)}[/tex]

[tex]\textbf{\underline{Setting the values:}}[/tex]

[tex].\qquad\bullet\sf{y_1=2}\\.\qquad\bullet m=1/3\\.\qquad\bullet x_1=6}}[/tex]

[tex]\textbf{\underline{Plugging in the values:}}[/tex]

[tex].\qquad\bullet\sf{y-2=\dfrac{1}{3} (x-6)}\\\\.\qquad\bullet y-2=\dfrac{1}{3}x-2}\\\\.\qquad\bullet y=\dfrac{1}{3} x}[/tex]

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

[tex]\large\overbrace{\underbrace{\textsf{\textbf{Reflection - RoSe}}}}^\star_\star[/tex]

The equation of a line with slope = 0 and y-intercept = (0,-2) is: y = -2

Now,

Given:

To find: Equation of the line

Finding:

Now, we know that the slope-point form method to find the equation of a line, requires only two things: slope of the line and coordinates of the y-intercept.

The equation so given by the method: y = mx + c, where

m = slope of the line

c = y-intercept

On substituting the given values in the above equation, we get:

=> y = 0x - 2, which the required equation of the line.

Hence, The equation of a line with slope = 0 and y-intercept = (0,-2) is: y = -2.

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It should be noted that the value of to 3x-4will be -12.

It should be noted that this simply has to do with multiplication.

In this case we have to multiply the values that are given.

Also, it's important note that minus multiplied by plus is minus.

Therefore, (3 × -4) = -12.

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The equation of the line for given values is y = -5x - 7.

When you know the slope of the line to be investigated and the provided point is also the y intercept, you may utilize the slope intercept formula, y = mx + b. (0, b). The y value of the y intercept point is denoted by the symbol b in the formula.

The standard equation of straight line is y = mx + c.

Given m = -5 and y - intercept is -7

So, the equation of the line becomes y = -5x - 7

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The division of given rational expression [tex]\frac{3x-6}{12x-24}\div \frac{x^2+5x+6}{3x^{2} -12}[/tex] is [tex]\frac{3(x-2)}{4(x+3)}[/tex] provided x ≠ -3

In this question,

we have been given a complex rational expression [tex]\frac{3x-6}{12x-24}\div \frac{x^2+5x+6}{3x^{2} -12}[/tex]

We need to find the division of given rational expression.

We rewrite given rational expression as,

[tex]\frac{\frac{3x-6}{12x-24}}{\frac{x^2+5x+6}{3x^{2} -12}}\\\\\\= \frac{3x-6}{12x-24}\times \frac{3x^2-12}{x^2+5x+6}[/tex]

First we simplify the quadratic expression x² + 5x + 6

x² + 5x + 6

= x² + 3x + 2x + 6

= x(x + 3) + 2(x + 3)

= (x + 3)(x + 2)

And the simplified form of quadratic expression 3x² - 12 would be,

3x² - 12

= 3(x² - 4)

= 3(x² - 2²)

= 3(x + 2)(x - 2)

So, the given rational expression would be,

[tex]\frac{3x-6}{12x-24}\div \frac{x^2+5x+6}{3x^{2} -12} \\\\\\ = \frac{3x-6}{12x-24}\times \frac{3x^2-12}{x^2+5x+6}\\\\\\=\frac{3(x-2)}{12(x-2)}\times \frac{3(x+2)(x-2)}{(x+3)(x+2)}[/tex]

[tex]\\\\=\frac{3}{12}\times \frac{3(x-2)}{(x+3)}\\\\\\=\frac{3(x-2)}{4(x+3)}~~~~~~~~~~~~~(provided~~x\neq -3)[/tex]

Therefore, the division of given rational expression [tex]\frac{3x-6}{12x-24}\div \frac{x^2+5x+6}{3x^{2} -12}[/tex] is [tex]\frac{3(x-2)}{4(x+3)}[/tex] provided x ≠ -3

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Answer:

11.55

Step-by-step explanation:

[tex]\frac{12}{5}[/tex] = [tex]2\frac{2}{5}[/tex] revolutions per second is the unit rate.

An item's unit rate is its price for one of it. This is expressed as a ratio with a one as the denominator. For instance, if you covered 70 yards in 10 seconds, you covered 7 yards on average every second. Seven yards in one second and 70 yards in ten seconds are both ratios, but only one of them is a unit rate.

1) Convert mixed fractions into fractions.

[tex]6\frac{2}{5}[/tex] = [tex]\frac{((6*5) + 2)}{5}[/tex] = [tex]\frac{32}{5}[/tex]

[tex]2\frac{2}{3}[/tex] = [tex]\frac{((2*3) + 2)}{3}[/tex]  =  [tex]\frac{8}{3}[/tex]

2) [tex]\frac{32}{5}[/tex] ÷ [tex]\frac{8}{3}[/tex] ; where [tex]\frac{32}{5}[/tex] is the 1st fraction and [tex]\frac{8}{3}[/tex] is the 2nd fraction

a) Find the second fraction's reciprocal:

  From [tex]\frac{8}{3}[/tex] to [tex]\frac{3}{8}[/tex]

b) Multiply the first fraction by the second fraction's reciprocal, which is 32/5, 5/3, or (5/3), to get 96/40.

c) Simplify the fraction.

Divide 96 / 40 by 4 to get 24/10.

Divide 24/10 by 2, and the result is 12/5. The 96/40 simple fraction

[tex]\frac{12}{5}[/tex] = [tex]2\frac{2}{5}[/tex] revolutions per second is the unit rate.

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ΔABC ≅ ΔDBC under angle-side-angle (ASA) condition.

So,

To prove:  ΔABC ≅ ΔDBC

Then, ΔABC ≅ ΔDBC under angle-side-angle (ASA) condition.

(Refer the table shown below)

Therefore, ΔABC ≅ ΔDBC under angle-side-angle (ASA) condition.

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Answer:11.25

Step-by-step explanation: first subtract 12 from both sides then you would have 3.2x=36

and then divide both sides by 3.2 which is x=11.25

Answer: x=11.25

Step-by-step explanation: 48-12> 36> 3.2x=36> divide 36 by 3.2> x= 11.25

Hope this helped

Answer:

The period would be 2 years

Step-by-step explanation:

The point X on AB such that the ratio is 1.25 units.

XB=AX×3

AX+XB=AB

AX+(AX×3)=AB

AX×4=AB

AX×4=9

AX=2.25

X=-1+2.25

X=1.25 units

Ratio shows how often one number is contained in another. For instance, the proportion of oranges to lemons in a bowl of fruit is eight to six if there are eight oranges and six lemons (that is, 8:6, which is equivalent to the ratio 4:3). The proportions of oranges to the overall amount of fruit are 8:14 for oranges and 6:8 (or 3:4) for lemons (or 4:7).

The quantities in a ratio can be of any form, including counts of people or things, measures of lengths, weights, or times, etc.

Hence , the Coordinate in units: (2,1.25).  In most contexts, both numbers are restricted to be positive.

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The solution of the given equation -3(x-4)=2(x+8) is at x = -4/5.

According to the given question.

We have a linear equation in one variable.

-3(x-4)=2(x+8).

As we know that,the linear equations in one variable is an equation which is expressed in the form of ax+b = 0, where a and b are two integers, and x is a variable and has only one solution.

Thereofre, the solution of the given equation is given by

-3(x - 4) = 2(x + 8)

⇒ -3x + 12 = 2x + 16

⇒ -3x - 2x = 16 - 12

⇒ -5x = 4

⇒ x = -4/5

We get the solution of the given equation is at x = -4/5.

Now, we can check that x = -4/5 is a solution of the given equation or not.

Therefore,

L.H.S

= -3(-4/5 - 4)

= 12/5 + 12

= (12 + 60)/5

= 72/5

Similarly,

R.H.S

= 2(-4/5 + 8)

= -8/5 + 16

= -8 + 80/5

= 72/5

So, L.H.S = R.H.S

Hence, the solution of the given equation -3(x-4)=2(x+8) is at x = -4/5.

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The angle of depression, at which Tom threw the paper is 14.93°

In this question,

Tom throws a paper from a height of 4 feet, and it lands 15 feet from the car.

We need to find the angle of depression, at which he threw the paper.

Consider the following diagram.

Let the θ be the angle of depression, at which he threw the paper.

Consider the tangent of angle θ.

⇒ tan(θ) = 4/15

⇒ θ = [tex]tan^{-1}(\frac{4}{15} )[/tex]

⇒ θ = 14.93°

Therefore, the angle of depression, at which Tom threw the paper is 14.93°

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The value of the variable k must equal to - 2 such that the line segment MS is perpendicular to the line segment OP.

According to analytical geometry, two lines are perpendicular to each other if the product of their slopes are equal to - 1. Slopes can be determine by secant line formula:

m₁ = (5 - 8) / [- 2 - (- 6)]

m₁ = - 3 / 4

m₂ = [(k - 2) - (- 20)] / [13 - (k + 3)]

m₂ = (k + 18) / (10 - k)

(- 3 / 4) · [(k + 18) / (10 - k)] = - 1

(- 3 / 4) · (k + 18) = - (10 - k)

- 3 · (k + 18) = - 4 · (10 - k)

- 3 · k - 54 = - 40 + 4 · k

7 · k = - 54 + 40

7 · k = - 14

k = - 2

The value of the variable k must equal to - 2 such that the line segment MS is perpendicular to the line segment OP.

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The expression that shows the number of books he sold on Thursday is x + 9 = 27; 18 books

The given parameters are

Friday sales = 27

Friday sales = 9 more than the number of books he sold on Thursday.

Let the number of books he sold on Thursday be x

So, we have

Friday = 9 + x

This gives

27 = 9 + x

Rewrite as

x + 9 = 27

Solve

x = 18

Hence, the expression that shows the number of books he sold on Thursday is x + 9 = 27; 18 books

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