Mrs. Shaw writes this equation on the board. She asks the students to find
the solution.
-40 -2(3m + 1/2)= 7m -2

Keith’s work is shown below. What mistake did Keith make?

-40 - 6m + 1 = 7m - 2
-39 - 6m = 7m -2
-39 = 13m - 2
-37 = 13m
-2 11/13 = m

What is the solution of the equation?

Answer:

The coordinates of triangle after reflection over y-axis

 D¹( -2 ,6) , E¹( -5 ,6) , F¹ (-5,1)

Step-by-step explanation:

Explanation:-

Given that DEF with vertices D(2,6), E(5,6), and F(5,1)

Given that the triangle DEF reflection over the 'y' - axis then  transformed into

( x,y) → (-x,y)

Now,

D(2,6) → D¹( -2 ,6)

E(5,6)→ E¹( -5 ,6)

F(5,1)→ F¹ (-5,1)

Final answer:-

The coordinates of triangle after reflection over y-axis

 D¹( -2 ,6) , E¹( -5 ,6) , F¹ (-5,1)

Answer:

500 people surveyed

Step-by-step explanation:

210 / 42 = 5

5 x 100 = 500

Answer:

500 people were surveyed

Step-by-step explanation:

Let the total number of people surveyed be x

42% said football was their favorite sport to watch

=> 42/100 x = 210

=> x = (210 × 100) / 42

=> x = 21000 / 42

=> x = 500

Therefore, 500 people were surveyed.

Hope it helps :)

Please mark my answer as the brainliest

Answer:

negative correlation

Step-by-step explanation:

because it starts from the y axis

Answer:

$1.93

Step-by-step explanation:

From the total (13.19), subtract the cost of the oranges (1.61). That would equal 11.58, which is the cost of the 6-pack of juice bottles. Then, divide 11.58 by 6 to determine the cost of each bottle.

Each bottle = $1.93

Hope this helps!!

Answer:

$10 each

Step-by-step explanation:

Answer:

Y = [-6  6 6 -6]

Step-by-step explanation:

From the given matrices

If X - 2Y  = Z

b - 2c = a ... 1

a -2d = c ...2

4+2a = 16.... 3

a + 2b = b .... 4

From3 ;

2a = 16-4

2a = 12

a = 6

From 4;

a + 2b - b = 0

a+b = 0

a = -b

6 = -b

b  = -6

From1;

b - 2c = a

-6 - 2c = 6

-2c = 12

c = -6

also

a - 2d = c

6-2d = -6

-2d = -6-6

-2d = -12

d = 6

Hence the matrices Y = [-6  6 6 -6]

Number 1

56.5 kaings each weighing 18.75 kilograms

56.5 × 18.75 = 1059.375 kilograms

Answer : 1059.375 kilograms

Number 2 (A)

$24.25 a kilo and 18.75 kilograms for one kaings

18.75 × $24.25 = $454.6875

Answer : $454.69

Number 2 (B)

$24.25 a kilo and 1059.375 kilograms

1059.375 × $24.25 = 25 689.84

Answer : $25 689.84

Number 3

1.5 kilograms free for each kaing

18.75 - 1.5 = 17.25 kg

17.25 kg × 56.5 kaings × $18 247.21875

Answer : $18 247.22

Step-by-step explanation:

(-8,-10) (-10,-12) (-12,-14)

just plug them into the formula and see that it works.

Answer:

I think this is probably late, but the answer is 4/11.

Step-by-step explanation:

0.36363636363 is the first repeating fraction and 36.36363636 is the second repeating fraction, because you multiply it by 100.

When 0.3636363636363 is multiplied by 100, the decimal moves from in front of the number 36 and moves behind it. So the answer is now 36.36363636

You're suppose to subtract those two minus each other, the denominator

the fraction is technically 36/99, but simplified version is 4/11. So the answer is indeed 4/11.

Thanks for your time!

Step-by-step explanation:

Answer:

:0.36 repeating can be expressed as 36/99

Step-by-step explanation:

0.36 is equal to 36100, but you can simplify it further by dividing 36 and 100 by 4 to get 925

Answer:

More precisely, the sine of an angle t equals the y-value of the endpoint on the unit circle of an arc of length t.

Step-by-step explanation:

Bunctions, the sine function has an input and an output.

Answer: 7/25

Step-by-step explanation:

To find the sine you divide the opposite side of the angle by the hypotenuse

Answer:

10/3

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Step-by-step explanation:

Step 1: Define

1/3(4 + 18) - 2²

Step 2: Evaluate

Answer:2.234

Step-by-step explanation:

Answer:

3576 ÷by 38= 94

Step-by-step explanation:

I think this ans may help you

Answer:

The answer is 94.1052631579

Step-by-step explanation:

Answer:

[tex]5\frac{5}{6}[/tex]

Step-by-step explanation:

The problem above requires the use of mathematical operation with mixed fractions. In order to do this, you have to convert the mixed fractions into improper fractions first.

Let's convert.

Next, you have to multiply the fractions by multiplying the numerators with each other and the denominators with each other.

Let's solve.

Since [tex]\frac{35}{6}[/tex] is an improper fraction and the choices above are mixed fractions, you have to convert it.

Let's convert.

Therefore, the answer is [tex]5\frac{5}{6}[/tex]

Answer:

-25

Step-by-step explanation:

Given the equation 25 + x =

Subtract 25 from both sides

25 + x - 25 = 0 - 25

x = 0 - 25

x = -25

Hence the blank box will be -25

Answer:

Step-by-step explanation:

The answer depends on whether the interest is simple or compound.

For simple interest:

A = 670(1 + 0.08)(24)

For compound interest

A = 670(1 + 0.08)24

Answer:

???????

Step-by-step explanation:

Answer:

A) 93 degrees

Step-by-step explanation:

a is supplementary to 93 degrees so A=180-87=93

Answer:

<A+87=180(linear pair)

<A=180-87=93°

is required value of <A

To find the area of the composite figure:-

We can use following methods-

1. Decompose the figure into one rectangle and one triangle and add the area.

2. Decompose the figure into two trapezoids and add the area.

3. Find the area of the larger rectangle, then subtract the area of the two small triangle

"It is shape that is made up of two or more geometric shapes"

A = 1/2 × b × h

where b is the base of the triangle and 'h' is the height of the triangle

A = l × w

where l = length of the rectangle

w = width of the rectangle

For given example,

We need to find the area of the composite figure.

To find the area of the composite figure:-

We can follow-

1. Decompose the figure into one rectangle and one triangle and add the area.

2. Decompose the figure into two trapezoids and add the area.

3. Find the area of the larger rectangle, then subtract the area of the two small triangle

Learn more about the area of composite figure here:

https://brainly.com/question/27234680

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Answer: A, B, and D

Step-by-step explanation:

Answer:

umm look it up

Step-by-step explanation:

Answer:

0.00375 inches thick

Step-by-step explanation:

step 1. f(0) = 0/(0^2 + 1) = 0/1 = 0

step 2. -f(x) = -x/(x^2 + 1)

step 3. f(9) = 9/(9^2 + 1) = 9/82.

A function is defined as a relation between a set of inputs having one output each. The values can be written as shown below.

A function is defined as a relation between a set of inputs having one output each. In simple words, a function is a relationship between inputs where each input is related to exactly one output. Every function has a domain and codomain or range. A function is generally denoted by f(x) where x is the input.

Given function is f(x) = [tex]\frac{x}{x^{2} +1}[/tex], therefore, the values can be found by as shown below. Therefore, we can write,

(a) f(0) = 0/0+1 = 0

(e) – f(x) = - [ x / (x²+1)]

(b) f(9) = 9/(81 + 1) = 9/82

(f) f(x + 1) = (x + 1)/(x² + 2x + 2)

(c) f(-9) = - 9/(81 + 1 ) = -9/82

(g) f(3x) = 3x/(9x² + 1)

(d) f(-x) = -x/(x² + 1)

(h) f(x + h) = (x + h) / [(x+h)²+1]

For more about Function here:

https://brainly.com/question/12431044

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Answer:

v=16

Step-by-step explanation:

Multiply 8 on both sides

8* v/8= 8*2

8*8 cancels out because you reduce the numbers with the greatest common factor which is 8*8 the GCF of 8*8 is 8.

Multiply 8*2 which is 16

v=16

Answer:

C: 16.

Step-by-step explanation:

8 x 2 = 16. Therfore C is correct

Answer:

-3+13x=9.

13x=9+3

13x=12

x=12/13

i proved it by putting value of x in reactant side you get product .

-3+13×12/13=9

Answer:

x = 12/13

Step-by-step explanation:

-3 + 13x = 9

Adding 3 to both sides,

13x = 12

Dividing both sides by 13,

x = 12/13

We can prove it by putting the value of x we got in the given equation:

LHS = -3 + 13x

       = -3 + 13 (12/13)

       = -3 + 12

       = 9 = RHS

Hence, proved.

Hope it helps :)

Please mark my answer as the brainliest

Answer:

February 6th

Step-by-step explanation:

3 months before may 15 is February 15. Subtract 9 from 15 (1 week and 2 days) and you get 6 which leads you to your answer.

Answer:

FEB 16

Step-by-step explanation:

Answer:

A = 340 adult.

C = 398 children.

Step-by-step explanation:

Let the number of children be C

Let the number of adults be A

Translating the word problem into an algebraic equation, we have;

A + C = 738  .......equation 1

1.5C + 2C = 1306  .......equation 2

A = 738 - C .......equation 3

Substituting eqn 3 into eqn 2, we have;

1.5(738 - C) + 2C = 1306

1107 - 1.5C + 2C = 1306

1306 - 1107 = 2C - 1.5C

199 = 0.5C

C = 199/0.5

C = 398 children.

Now, to find the value of A.

From equation 3;

A = 738 - C

A = 738 - 398

A = 340 adult.

Answer:

Letter B

Step-by-step explanation:

Answer:

Step-by-step explanation:

this is a rational function thus the domain is all real numbers except the values which make zero to denominator

hence x-4=0 ;x=4

the domain of that function is R- {4}

Answer:

Step-by-step explanation:

Just add it