1 Solve the expression 8 x 5 – 12 x + 5 using PEMDAS. 3

39

40

41

42​

Answer: 80% or 4/5

Step-by-step explanation:

Look at this as a percentage:

3/4=75%

1/5=20%

Lets say you have 100$

75% of $100 leaves you with $25

20% of the remaining $25 gives you $20

$100-$20=80% or 4/5

Answer: 55% and 11 over 2

Step-by-step explanation:

55 is the percent form and 11 over 2 is a fraction form

btw your in collage and you van’t figure that out?

Answer:

D

Step-by-step explanation:

Rotates 90 Degrees counter-clockwise then translates 3 left and 3 down.

Answer:

D

Step-by-step explanation:

Rotates 90 degrees in a counter clockwise motion, then it translates three to the left and then three down.

Answer:

Ned and Penny

Step-by-step explanation:

Ned: [tex]\frac{1}{3}[/tex]

Penny: [tex]\frac{4}{12}[/tex] --> simplying it makes it [tex]\frac{1}{3}[/tex]

Hence, Ned and Penny ate the same amount of pizza.

The friends who ate the same amount of pizza are Ned and Penny

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is

Substituting the values in the equation , we get

Four friends shared a pizza

Now , Felix 1/12

Lucy 1/4

Ned 1/3

Penny 4/12

So , the pizza shared by Penny = 4/12

On simplifying the equation , we get

P = 1/3

Hence , Penny and Ned shares the same amount of Pizza = 1/3

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Answer:

6 black marbles

Step-by-step explanation:

19+1=20

120/20=6

6×19=114

120-114=6

Answer:

(4, 14)

Step-by-step explanation:

We are given;

Graph of: y = ax² + c

That it contains point (2, 14)

Now,we want to find which point lies on the graph: y = a(x - 2)² + c.

Now, symbol "a" means the value of horizontal shift because the constants are grouped with x.

If the value of "a" is greater than 0,then it means that the graph shifted to the left by "a" units while if the value of "a" is less than 0,it means the graph shifted to the right by "a" units.

Now, from the 2 graph equations given, and from the principle of graph shifts, we can say that the first graph has shift by 2 units to the right because "a" equals -2.

What this implies is that every point on the graph y = ax² + c shifts by 2 units right.

Thus, the points that lie on the graph y = a(x - 2)² + c are: (x + 2, y)

Thus, points are: (2 + 2, 14) = (4, 14)

Answer:

5x &  -1

Step-by-step explanation:

2x+3=5x

-x = -1x

maybe...

Answer:

-1

Step-by-step explanation:

Gradient is another word for slope, and slope can be defined as rise/run.

From the point (0,0) to (1,-1), it moved one unit down and one unit to the right. The slope for this line can be represented as -1/1, which is equal to -1.

Therefore, the gradient of the graph shown is -1.

. Suppose you received $ from your grandmother for your birthday. You spent $ on snacks. Using

addition, how would you write an equation to represent this situation?

+ (−) =

b. How would you model your equation on a number line to show your answer?

Real-world situations can be modeled with equations and represented on a real number line. In this exercise, positive

ten represents the $10 given as a birthday gift because it is a gain. Negative four represents the $4 spent on snacks

because it is a loss. Gaining $10 and then taking away $4 leaves you with $6.

The surface area of this figure will be 991 square feet.

The area of a plane region or plane field refers to the area of a shape or planar substance, whereas surface area refers to the area of an open surface or the boundary of a multi-object.

A complex solid made out of triangular and rectangular prisms. The triangular prism is centred on the top of the rectangular prism.

The surface area of the shape is given as,

SA = 2(19 x 11 + 11 x 9) + 19 x 9 + 10x 9 + 13 x 12 + 13 x 12

SA= 2(209) + 171 + 90 + 156 + 156

SA = 418 + 171 + 90 + 312

SA = 991 ft²

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Answer: 3 divided by 1/4 is the first and the second is number fourths un 3 :)

Step-by-step explanation:

3÷1/4 is the expression which can be used to represent the model

A fraction represents a part of a whole.

An expression is combination of variables, numbers and operators.

In the given model there are twelve blocks.

The 12 blocks are divided to three parts.

Each part has 4 blocks.

This can be represented by the expression 3÷1/4

Three divided by one by four is the required expression.

Hence, 3÷1/4 is the expression which can be used to represent the model

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The surface of the figure is the amount of space on the figure

The new surface area would be half of the original figure

The question is incomplete, so I will give a general explanation.

Assume the surface area of the original figure is A.

Then the area of the new figure would be:

A2 = A * k

Where k is the scale of dilation.

From the question, we have:

k = 1/2

So, the equation becomes

A2 = A * 1/2

This gives

A2 = 1/2A

The above means that the new surface area would be half of the original figure

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Answer:

The answer is 181.61

Step-by-step explanation:

I took the k-12 quiz - Hope this helps!

Answer:

second option. One lap around the mall is equal to about 2,425 steps

TheThe statement that  is true about the graph of the line representing Debi’s data is: One lap around the mall is equal to 2,425 steps.

Given:

With the 0 lap she has 1,875 steps

With 1 lap she has 4,300 steps

Hence:

One laps around the mall= 4,300 steps-1,875 steps

One laps around the mall=2,425 steps

Therefore the correct option is B.

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Answer:

x=2

Step-by-step explanation:

1/2‒1/6=4/3x^2

3/6‒1/6=4/3x^2

2/6=4/3x^2

1/3=4/3x^2

1(3x^2)=4(3)

3x^2=12

x^2=4

x=√4

x=√2*2

x=2

Answer:

You can measure from the inside of the tank or measure the outside and subtract the width of the tank walls to find the inside measurement. Next multiply the length width and depth measurements to find the cubic volume in cubic inches

Step-by-step explanation:

Answer:

3/2 or 1.5

Step-by-step explanation:

[tex]\textit{area of a trapezoid}\\\\ A=\cfrac{h(a+b)}{2}~~ \begin{cases} h~~=height\\ a,b=\stackrel{parallel~sides}{bases}\\[-0.5em] \hrulefill\\ A=30.6\\ a=3.2\\ b = 7 \end{cases}\implies 30.6=\cfrac{h(3.2+7)}{2} \\\\\\ 61.2=h(3.2+7)\implies 61.2=10.2h\implies \cfrac{61.2}{10.2}=h\implies 6=h[/tex]

Answer:

Assuming the cones are the same height, then

V1 = pi * r^2 * h/3 = 3.14159*1^2*h/3

V2 = 3.14159*2.5^2*h/3 = 3.14159*6.25*h/3

V1/V2=(3.14159*h/3)/(3.14159*6.25)*h/3

V1/V2 = 1/6.25 = .16

V2/V1=(3.14159*6.25)*h/3/(3.14159*h/3)

V2/V1=6.25/1 = 6.25

Answer: b = √6

Step-by-step explanation: Use the Pythagorean Theorem to solve this.

a² + b² = c²

Plug in your values:

2√3² + b² = 2b²

When a square root is squared, the square root is cancelled out so you will be left with this:

2(3) + b² = 2b²

Subtract b² from both sides so you’re left with:

6 = b²

Now, to get rid of the square, just square root both sides:

√6 = √b²

Since the √6 is not a perfect square, leave it in the radical. Then, you get your answer:

b = √6

Answer:

the answer:b is equivalent to 2

1 a week

Step-by-step explanation:

in 37 weeks she learned 37(10 in 10 weeks, snd 27 in 27 weeks) so 37:37=1

Answer:

bottom left, the one that looks like a v

Step-by-step explanation:

You can test if something is a function by looking to see if there is a place where an x has 2 ys. if there are 2 ys for an x it is not a function.

Answer:

bottom left

Step-by-step explanation:

Bottom right is not a function because you would get an infinite number of results. It does not exactly map one output of this function.

The top two graphs are incorrect because they have more than 1 output. You can do the Vertical Line test and see that the top two graphs do have more that one output.

In order for it to be a function it has to have one output.

Answer:

c

Step-by-step explanation:

d=vt

d=10 km/h x 3.5 h

d = 35 km

Answer:

1/4

Step-by-step explanation:

Probability = successes / all events

Odds = successes / failures

If the probability is 1/5, then there's 1 success for every 4 failures.

So the odds are 1/4.

Answer:

Step 1: Calculate percentage discount

=> $97,899.99 × 25/100

=> 97,899.99/1 × 25/100

{multiply the numerator by the numerator and the denominators by the denominators}

=> 2,447,499.75/100

divide 24,474.9975 by 100

=> 24,474.9975

=> 24,474.9975

{Substract 24,474.9975 from 97,899.99.}

=> 97,899.99 - .24,474.9975

=> 73,424.9925

Step 2: Calculate sales tax rate

Sales tax rate = price × rate/100

=> 73,424.9925 × 3.75/100

=> 275,343.7/100

=> 2,753.437

Add to 73,424.9925

=> 73,424.9925 + 2,753.437

=> 76,178.4295

=> 76,178.4 { Rounded to 1 dp)

Therefore, the total price of the purchases is 76,178.4295

Answer: The answer is 5$

Step-by-step explanation:

50/10=5

Answer:

yes because 50 is 10 now and also yes

Answer:

y = - 143481.1924 + 10011.9212x1 - 2193.8838x2 + 2689.2405x3

Step-by-step explanation:

Given the data below:

Education (No. of years) Length of tenure in current employment (No. of years) Age (No. of years) Annual income ($) 17 8 40 124,000 12 12 41 30,000 20 9 44 193,000 14 4 42 88,000 12 1 19 27,000 14 9 28 43,000 12 8 43 96,000 18 10 37 110,000 16 12 36 88,000 11 7 39 36,000 16 14 36 81,000 12 4 22 38,000 16 17 45 140,000 13 7 42 11,000 11 6 18 21,000 20 4 40 151,000 19 7 35 124,000 16 12 38 48,000 12 2 19 26,000 10 6 44 124,000

The estimated multiple linear regression equation that can be used to predict the annual income using number of years school completed (Education), length of tenure in current employment, and age using an online multiple regression calculator is :

y = - 143481.1924 + 10011.9212x1 - 2193.8838x2 + 2689.2405x3

According to the general form of a multiple linear regression model:

-143481.1924 = intercept(c) ; where regression line crosses the origin

10011.9212x1 - 2193.8838x2 + 2689.2405x3 are weight coefficients of the three predictor variables ; x1, x2, and x3

y = predicted variable

Where the regression line crosses the origin 10011.92x₁ – 2193.88x₂ + 2689.24x₃ are weight coefficients of the three predictor variables x₁, x₂, and x₃. Then y is the predicted variable.

A Linear system is a system in which the degree of the variable in the equation is one. It may contain one, two, or more two variables.

A survey conducted by a research team was to investigate how the education level, tenure in current employment, and age are related to annual income.

A sample of 20 employees is selected.

The estimated multiple linear regression equation that can be used to predict the annual income using the number of years of school completed (Education), length of tenure in current employment, and age using an online multiple regression calculator will be

[tex]\rm y=-143481.19 + 10011.92x_1-2193.88x_2+2689.24x_3\\[/tex]

According to the general form of a multiple linear regression model will be

[tex]\rm -143481.19 = intercept (C)[/tex]

Where the regression line crosses the origin 10011.92x₁ – 2193.88x₂ + 2689.24x₃ are weight coefficients of the three predictor variables x₁, x₂, and x₃.

y = predicted variable.

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139 miles

explanation:

$1 → 100 cents

Here the base fee is fixed.

make equation:

$19.99 + 0.83m ↣ $135.36

0.83m ↣ $135.36 - $19.99

0.83m ↣ $115.37

m ↣ 139

Therefore she has ridden 139 miles.

x intercepts means the roots of the function .Let's find out

[tex]\\ \rm\Rrightarrow 9m^2+3m-2=0[/tex]

[tex]\\ \rm\Rrightarrow 9m^2-3m+6m-2=0[/tex]

[tex]\\ \rm\Rrightarrow 3m(3m-1)-2(3m-1)=0[/tex]

[tex]\\ \rm\Rrightarrow (3m-2)(3m-1)=0[/tex]

The x-intercepts are -(2/3) and (1/3).

The correct options are (B) and (C)

An algebraic equation of the second degree in x is a quadratic equation. The quadratic equation is written as ax² + bx + c = 0, where x is the variable, a and b are the coefficients, and c is the constant term. The fact that the coefficient of x² is a non-zero term (a 0) is a necessary need for an equation to be a quadratic equation.

As per the given data:

f(x) = 9m² + 3m - 2

To find the x-intercept of this function:

The roots of f(x) will be the x-intercepts of the given function.

f(x) = 9m² + 3m - 2

9m² + 3m - 2 = 0

9m² - 3m + 6m - 2 = 0

3m(3m - 1) + 2(3m - 1) = 0

(3m + 2)(3m - 1) = 0

The roots are m = -(2/3) and m = (1/3)

Hence, the x-intercepts are -(2/3) and (1/3).

The correct options are (B) and (C)

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