when solving the equation which is the best first step to begin to simplify the equation? -2(x+3)=-10​

Answer:

240

Step-by-step explanation:

200 divided by 100, to get the amount per percent, then multiply it by 120, to get 240.

Answer:

Step-by-step explanation:200 multipled by 120%

200 • 120/100

Reduce the numbers with the greatest common divisor 100

2 • 100

2 •120

Multiply the numbers

THE ANSWER IS 240

Answer:

a=1

Step-by-step explanation:

2a + 3(a + 1) = 8

Distribute

2a +3a +3 = 8

Combine like terms

5a +3 =8

Subtract 3 from each side

5a+3-3=8-3

5a = 5

Divide by 5

5a/5 = 5/5

a=1

Answer:

x=42

Step-by-step explanation:

2x42

Answer:

42

Step-by-step explanation:

tell me if i am wrong by reporting

Answer:

9

Step-by-step explanation:

12 - 3 = 9

Hello :D

Answer:

[tex]\boxed{9}\checkmark[/tex]

The answer has a positive sign.

Step-by-step explanation:

Order of operations

PEMDAS

Parenthesis

Exponents

Multiply

Divide

Add

Subtract

Left to right

[tex]|-12|-|3|[/tex]

[tex]12-3=9[/tex]

[tex]\boxed{9}[/tex], which is our answer.

Hope this helps! :D

Answer:

Step-by-step explanation:

Look at the picture.

The range: -6 ≤ y ≤ 9

The domain: x ≤ 0

Question 1:

For this case we have that by definition, the volume of a prism is given by:

[tex]V = a * b * c[/tex]

Where:

a: It is the long

b: It is the width

c: It is the height

According to the data we have:

[tex]a = 18m\\b = 9m\\c = 6m[/tex]

Substituting:

[tex]V = 18 * 9 * 6\\V = 972[/tex]

Thus, the volume of the building is[tex]972 \m ^ 3[/tex]

Answer:

Option B

Question 2:

For this case we have that by definition, the volume of a prism is given by:

[tex]V = a * b * c[/tex]

Where:

a: It's the long

b: It is the width

c: It is the height

According to the data we have:

[tex]a = 26in\\b = 14in\\c = 18in[/tex]

Substituting:

[tex]V = 26 * 14 * 18\\V = 6552[/tex]

Thus, the volume of the tank is [tex]6552 \in ^ 3[/tex]

Answer:

Option A

Question 3:

For this case we have that by definition, the volume of a cube is given by:

[tex]V = l ^ 3[/tex]

Where:

l: It's the side of the cube

According to the data we have that the cube side is 7.2ft.

Substituting we have:

[tex]V = (7.2) ^ 3\\V = 373.25[/tex]

Rounding off we have that the volume of the cube is [tex]373.25 \ ft ^ 3[/tex]

Answer:

Option B

Question 4:

For this case we have that by definition, the volume of a cube is given by the following formula:

[tex]V = l ^ 3[/tex]

Where:

l: It's the side of the cube

According to the data we have that the cube side is 4.5 yards.

Substituting we have:

[tex]V = (4.5) ^ 3\\V = 91.125[/tex]

Rounding off we have the cube volume is[tex]91.13 \ yd ^ 3[/tex]

Answer:

Option C

Answer:

C

Step-by-step explanation:

4y-2y=10

y=5

Answer:

cam bought 12 books 7 at $0.35 and 5 at $0.50

Step-by-step explanation:

Answer:

x = -80

Explanation

-40 divided by 1/2 is -80

Answer:

8.15

Step-by-step explanation:

Step-by-step explanation:

1.9+6.25=8.15

   1.9  

+ 6.25

______

  8.15

Answer:

2n² = 12 + n

2n² - n - 12 = 0

[tex]n = \frac{1 ± \sqrt{ {( - 1)}^{2} - 4(2)( - 12)} }{2(2)} [/tex]

[tex]n = \frac{1 ± \sqrt{97} }{4} [/tex]

Answer:

The value of f(-4) = -80

Step-by-step explanation:

It is given that,  f(x) = -5x²

To find the value f(-4)

Let  f(x) = -5x²

To find the value of f(-4), substitute -4 instead of x

f(-4) =  -5 * (-4)²

 = -5 * 16      [ since (-4)² = -4 * -4 = 16 ]

 = -80

Therefore the value of f(-4) = -80

Answer:(4,0) and (-9,0)

Step-by-step explanation:

[tex]\text{Hey there!}[/tex]

[tex]\text7x}^2\text{- 32x - 60}[/tex]

[tex]\text{The answer is: (7x + 10)(x - 6)}[/tex]

[tex]\text{Because if you follow the step to the answer (first you have to distribute}[/tex] [tex]\text{then combine the like terms after distributing) after all of that you SHOULD}[/tex] [tex]\text{get the equation back!}[/tex]

[tex]\text{Distribute}\downarrow\\\\\text{7x(x)=7x}^2\\ \text{7(-6x)= -42}\\\text{10(x)= 10x}\\\text{10(-6)= -60}[/tex]

[tex]\text{Combine your like terms (terms that has the almost the same thing)}\downarrow[/tex]

[tex]\text{-42x + 10x = -32x}[/tex]

[tex]\text{The other terms stays the same because they DON'T have like terms}[/tex]

[tex]\text{Original problem: 7x}^2\text{- 32x -60}[/tex]

[tex]\boxed{\boxed{\bf{Answer: (7x+10(x -6))}}}\checkmark[/tex]

[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]

~[tex]\frak{LoveYourselfFirst:)}[/tex]

Answer:

[tex]( {a}^{2} - b)(5 {a}^{2} + 6b) \\ 5 {a}^{4} + 6 {a}^{2} b - 5 {a}^{2} b - 6 {b}^{2} \\ = 5 {a}^{4} + {a}^{2} b - 6 {b}^{2} [/tex]

Answer:

(2, 9)

Step-by-step explanation:

We've been given the exponential function;

f(x) = 25(3/5)^x

We need to determine the value of f(x) when x = 2, that is;

f(2) = 25(3/5)^2

Using a calculator we obtain

f(2) = 9

Thus the next point she plots on the graph will be (2, 9)

Answer:

The best cluster would be Philadelphia which percentage of 27% is nearly close to 28% of the whole united states population percentage.

Step-by-step explanation:

The correct option for the city which would be considered as the best cluster is B. Miami,  16% of the population are MyBook users.

A survey is a means of gathering information from a sample of people using pertinent questions with the goal of understanding populations as a whole.

Now given that,

Amount of population that are MyBook users = 28%

Thus,

Amount of population that do not uses MyBook = 100% - 28% = 72%

Thus, Philaldephia and Denver cannot be percentage of the population who are MyBook users.

Thus, the correct option for the city which would be considered as the best cluster is B. Miami, 16% of the population are MyBook users.

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Answer:

C

Step-by-step explanation:

Givens

Original cost = 29 dollars.

Discount = 40% on the second shirt.

Formula

cost after discount = (2 × list price) – (list price × discount percentage)

Solution

Cost after discount = 2 * 29 - 29*40/100

Cost after discount = 58 - 11.60

Cost after discount = 46.40

Answer:

Step-by-step explanation:

[tex]\underline{+\left\{\begin{array}{ccc}2x-3y=-9\\-x+3y=6\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad x=-3\\\\\text{put the value of x to the second equation:}\\\\-(-3)+3y=6\\3+3y=6\qquad\text{subtract 3 from both sides}\\3y=3\qquad\text{divide both sides by 3}\\y=1[/tex]

Answer:

-x(x^2 +3x +4)

Step-by-step explanation:

-x^3-3x^2-4x

Factor out a -x

-x(x^2 +3x +4)

We cannot factor inside the parentheses, so this is complete

Answer:

4 x  [tex]10^{12}[/tex])

Step-by-step explanation:

(6 x [tex]10^{8}[/tex]) / (1.5 x [tex]10^{-4}[/tex])

=  ([tex]\frac{6}{1.5}[/tex] x [tex]10^{8}[/tex]) / ([tex]10^{-4}[/tex])

=  ([tex]\frac{6}{1.5}[/tex] x [tex]10^{8}[/tex]) x ([tex]10^{4}[/tex])

=  [tex]\frac{6}{1.5}[/tex] x [tex]10^{12}[/tex]

=  4 x  [tex]10^{12}[/tex]

Step-by-step explanation:

6*10^8 /1.5*10^-4

6/1.5 * 10^8/10^-4

4 * 10^8-(-4)

4*10^8+4

4*10^12

Answer:

Slope= 7/5

Step-by-step explanation:

The slope of a line is determined as a ratio of the change in y to the change in x.

Slope=Δy/Δx

Δy=y₂-y₁

Δx=x₂-x₁

Therefore we can use the the x and y coordinates from the points given, (-3,0) and (2,7) to calculate the slope.

m= (7-0)/(2-⁻3)

Slope= 7/5

When a negative number is subtracted from a number it the operation sign changes to addition.

Answer: Last option

[tex]slope=\frac{7}{5}[/tex]

Step-by-step explanation:

The equation to find the slope m of a line is:

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

Where [tex](x_1, y_1)[/tex] and [tex](x_2, y_2)[/tex] are two points through which the line passes

In this case the points are: (-3, 0) and (2, 7)

Therefore the slope is:

[tex]m=\frac{7-0}{2-(-3)}[/tex]

[tex]m=\frac{7}{2+3}[/tex]

[tex]m=\frac{7}{5}[/tex]

The answer is the last option

Time= distance/speed (T = d/s)

Rate or speed are similar since they both represent some distance per unit time such miles per hour and kilometers per hour. To solve for time use the formula for time, t = d/s which means time equals distance divided by speed.

distance = rate x time To solve for speed or rate use the formula for speed, s = d/t which means speed equals distance divided by time.

This is because, speed of the object refers distance travelled divided by time or it expressed as, Furthermore, 1 could also explain the relationship of the time with other two variables using this formula. Speed could be of 2 types, relative or average.

from the formula,

Distance = time * speed

Speed = distance/time

Time= distance/speed (T = d/s)

So basically distance divided both of them when it find speed distance divide time when fine time distance divide speed.

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a sequence is a function whose domain is the set of natural numbers.

natural numbers are all the negative and positive integers

A sequence exists as a function whose domain is the set of natural numbers.

A sequence exists as a function whose domain is the set of natural numbers or a subset of the natural numbers. Usually use the symbol a to describe a sequence, where n is a natural number and a stands for the value of the function on n. Intuitively, a sequence exists just as an ordered list of (possibly infinitely many) numbers.

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Answer:

(x-10)(x-2)

Formula:

a^{2} - b^{2} = (a-b)(a+b)  

Explanation:  

(x-6)^2-4^2

Then we can simplify to, (x-6-4)(x-6+4)

Which comes to your answer,  (x-10)(x-2)

Answer:

Step-by-step explanation:

x² − 12x − 20 = 0

a = 1;  b = (-12);  c = (-20)

b²-4ac = (-12)² - 4 * 1 * (-20) = 144 + 80 = 224

√b²-4ac = √ 224 = √ 2*2*2*2*2*7 = 2*2*√(2*7) = 4√14

delta = -b ± √b²-4ac / 2a

         = -(-12) ± 4√14

                    2 * 1

          = (12 ± 4√14)/2

           = 2 ( 6 ± 2√14) / 2

           =  6 ± 2√14

x =   6 + 2√14;  x =  6 - 2√14

Answer:

the answer will 100 percent be A

Answer:

The correct option is B.

Step-by-step explanation:

Let x is the  air conditioning unit's actual capacity and y is the maximum variance in British thermal units (Btu).

It is given that an air conditioning unit promises to have a cooling capacity of 6,000 British thermal units (Btu).

It means the maximum variance is less than or equal to absolute difference of actual capacity and 6,000.

[tex]y\leq |x-6000|[/tex]

The related equation of this inequality is a V-shaped curve with vertex (6000,0) and y-intercept (0,6000). Related curve is a solid curve because the points on curve included in the solution set.

The shaded region lie below the curve because the sign of inequality is ≤.

Therefore the correct option is B.

Answer:

-1 1/3

Step-by-step explanation:

To change and improper fraction (larger number in the numerator than the denominator) to a mixed number

divide the numerator by the denominator

4/3 =1  with 1 left over

Take the leftovers and put it over the denominator

1/3

The mixed number is 1 1/3

Since the number was negative, we put the negative out front

-1 1/3

Step-by-step explanation:

There can be two situations

1. When maggie is older

The equation becomes x = y + 3

It can also be expressed as y = x - 3

2. When maggie is younger

The equation becomes y = x + 3

Table of possible values

1. x    y          2. x    y

  5   2              2   5

  6   3              3   6

Answer:

The required equation is [tex]|y-x|=3[/tex]. If maggies is elder, then [tex]y_1=x-3[/tex] and if maggies is younger, then [tex]y_2=x+3[/tex].

Step-by-step explanation:

Let the x represents maggies age and y represents terrance age, make a table of possible values for x and y.

It is given that the difference between maggies age and terrance age is 3.

It means

[tex]|y-x|=3[/tex]

On simplification, we get

[tex]y-x=\pm 3[/tex]

[tex]y=x\pm 3[/tex]

Case 1: If maggies is elder.

[tex]y_1=x-3[/tex]

Case 2: If maggies is younger.

[tex]y_2=x+3[/tex]

The table of values is

x      y₁      y₂

-3    -6      0

0    -3      3

3     0      6

The graph of both functions are shown below.

Answer:

Possible values of x are   50 < x < 110.

Step-by-step explanation:

Consider the perimeter of the field:

2x + 2(x + 30) < 500

2x + 2x + 60 < 500

4x < 440

x < 110.

Consider the area of the field:

x(x + 30 ) > 4000

x^2 + 30x - 4000 > 0

(x - 50)(x + 80) > 0

The critical values are x = -80 and 50.

As x is a width it must be positive so x > 50.

Answer:  $24

Step-by-step explanation:

Let x represent the amount of Carrie's allowance.

[tex]\dfrac{1}{4}x+\dfrac{1}{3}x+8=22\\\\\\\dfrac{1}{4}x+\dfrac{1}{3}x=14\\\\\\(12)\dfrac{1}{4}x+(12)\dfrac{1}{3}x=(12)14\\\\\\3x + 4x = (12)14\\\\\\7x=(12)14\\\\\\x=(12)2\\\\\\x=24[/tex]