Please answer need help

Answer:

Step-by-step explanation:

Surface area formula

= bh + L(s1,s2,s3)

= 5(12) + 2(12+13 +5)

= 120

Therefore the surface are is 120cm

Answer:

The surface area is:

\(120 {cm}^{2} \)

Step-by-step explanation:

There are two triangles, and three rectangles in this prism. The area of a triangle is:

\( \frac{1}{2} base \times height\)

and the area of a rectangle is:

\(length \times width\)

Therefore the area of the triangle is:

\( \frac{1}{2} (5) \times 12 \\ 2.5 \times 12 = 30 \\ 30 \times 2 = 60\)

This value is multiplied by 2 because there are 2 triangles.

The area of the slanted rectangle is (13 x 2 = 26), the area of the standing rectangle is (12 x 2 = 24), and the area of the base rectangle is (5 x 2 = 10).

Therefore the surface area of the triangular prism is; 60 + 26 + 24 + 10 =

\(120 {cm}^{2} \)

Answer:

Solutions below.

Step-by-step explanation:

First, we have to define each of the formulas first.

Area of Circle =

\(\pi {r}^{2} \)

Circumference of Circle =

\(2\pi \: r\)

With the above formula above, we can find the Area and Circumference for each circle.

Circle A:

Radius = 8

Area =

\(\pi {(8)}^{2} = 64\pi {units}^{2} \)

Circumference =

\(2\pi(8) = 16\pi \: units\)

Circle B:

Diameter = 14 units

Radius = 14 ÷ 2 = 7 units

Area =

\(\pi {(7)}^{2} = 49\pi {units}^{2} \)

Circumference =

\(2\pi(7) = 14\pi \: units\)

Answer:

20x - 8

Step-by-step explanation:

Since we have the length and height of the rectangle we just multiply each by 2. This is because the length is the same on both sides and the height is too. The equation would look like this:

(5x-4 + 5x -4) + (5x +5x) = 10x -8 + 10 x = 20x -8

Answer:

3/4

Step-by-step explanation:

Since (p, r) lies on the line y = x + b,

we have,

r = p + b -----eq(1)

Since (2p, 5r) lies on the line y = 2x + b,

we have,

5r = 2(2p) + b -----eq(2)

Sub the value of r from eq(1) in eq(2),

5(p + b) = 4p + b

⇒ 5p + 5b = 4p + b

⇒ 5b - b = 4p - 5p

⇒ 4b = -p

⇒ b = -p/4

sub in eq(1)

r = p + (-p/4)

= p - p/4

= 3p/4

⇒ r = 3p/4

⇒ r/p = 3/4

Answer:

3/4

Step-by-step explanation:

We have two lines:

r = p + b     eq(1)

5r = 4p + b   eq(2)

eq(2) - eq(1)

4r = 3p

dividing by 4p

r/p = 3/4

Answer:

Step-by-step explanation:

N^2-10n+9

The function notation to represent a function is f(x) and standard notation and function notation are similar because  y = f ( x).

Function notation is a way in which a function can be represented using symbols and signs. Function notation is a simpler method of describing a function without a lengthy written explanation. The most frequently used function notation is f(x) which is read as “f” of “x”. In this case, the letter x, placed within the parentheses and the entire symbol f(x), stand for the domain set and range set respectively.

The domain of a function is the set of all possible inputs for the function. For example, the domain of f(x)=x² is all real numbers, and the domain of g(x)=1/x is all real numbers except for x=0.

According to the question

Standard Notation:

y = 2x + 5

Function Notation:

f ( x ) = 2x + 5

Function notation can be used to represent the function as it represent function using symbols and signs .

An equation involving x and y, which is also a function, can be written in the form y = “some expression involving x”;

that is, y = f ( x).

This last expression is read as “ y equals f of x” and means that y is a function of x.

Standard notation and function notation  are similar because

An equation involving x and y, which is also a function, can be written in the form y = “some expression involving x”;

that is, y = f ( x).

Hence, function notation to represent a function is f(x) and standard notation and function notation are similar because  y = f ( x).

To know more about Function notation and domain here:

https://brainly.com/question/12918381

#SPJ2

Answer:

16

Step-by-step explanation:

You will need to divide 94 by 6 and that will give you 15.6, but you can't have .6 of a table, so you would need 16 tables. Hope this helps!

(I sincerely apologize if I'm wrong)

Answer:

16

Step-by-step explanation:

94/6 = 15.6

15.6 rounded is 16

Answer: Step 1: Divide the given number by the smallest prime number. ...

Step 2: Again, divide the quotient by the smallest prime number.

Step 3: Repeat the process, until the quotient becomes 1.

Step 4: Finally, multiply all the prime factors.

Step-by-step explanation:

Answer: The inverse of f(x) is not g(x).

Step-by-step explanation:

Steps taken:

1.

\(f(x) = x + 10\\y = x + 10\\x = y + 10\)

2.

\(x = y + 10\\y = x - 10\)

The inverse of f(x) is x - 10, which does not match with g(x).

Answer:

223

Step-by-step explanation:

Answer:

Step-by-step explanation:

A. x + 5=12

7x = 21

B. b - 2/3 = 5/6

1/5m = 20

C. 45 = 3(x + 1)

D. 22.5 = 1.5x

E. Mark has $20 in his bank account. He saves $5 each week. How much money does Mark have in his account after 9 weeks? Use w to represent the number of weeks and t to represent the total amount Mark has after any number of weeks.

Answer:

The NMTAndP are all the same

Answer: Answer B is correct

Step-by-step explanation:

if u put in -2/5 in a calculator and change it to decimal form it equals -0.4

Answer:

7,650 ÷ ___ = 7.65  It's 1,000

Step-by-step explanation:

Hope it's right :)

Answer:

b: 7,650 / 1000 = .7.65 this is because the decimal jumps 3 spots to the left

Answer:

r(t) = 75 kg - (4.5 kg/wk)w

Step-by-step explanation:

Let r(t) represent the amount of rice remaining after w weeks.

Then:

r(t) = 75 kg - (4.5 kg/wk)w

please mark as brainliest

Answer:

w=10 and this means that 10 weeks after the rice was bought, 30 kilograms of rice remain.

Step-by-step explanation:

r(w)=75-4.5w is an equation for this function so I'll be using this. First insert r(w)= 30 into the equation.

75-4.5w=30

75-75-4.5w=30-75

-4.5w=-45

-4.5w/-4.5 = -45/ -4.5

w=10

Apologies if the explanation isn't thorough, I'll glady provide more details if necessary.

Answer:

The solution to the equation (1/2)c - 8 = 4 is c = 24.

Step-by-step explanation:

To solve the equation:

(1/2)c - 8 = 4

We want to isolate the variable c on one side of the equation, so we need to perform inverse operations to both sides of the equation to simplify it.

First, we add 8 to both sides of the equation:

(1/2)c - 8 + 8 = 4 + 8

Simplifying the left side by canceling out -8 and +8:

(1/2)c = 12

Next, we multiply both sides of the equation by 2 to eliminate the fraction:

2 × (1/2)c = 2 × 12

Simplifying the left side by canceling out 2 and 1/2:

c = 24

Therefore, the solution to the equation (1/2)c - 8 = 4 is c = 24.

Answer:

y > (1/3)x - 3.

Step-by-step explanation:

The graph of a line can be written in y = mx + b form where b is the y-intercept and m is the slope.

In the image, the slope of the graph from the given points is 1/3.

In the image, the y-intercept is -3.

Therefore, the line is y = (1/3)x -3. However, we aren’t done yet! This is an inequality, not an equation!

We see the line isn’t dotted, so that means it must be > or <.

We substitute the point (0,0) into the line equation we got and find that 0 > (1/3)(0) - 3 = -3. Since (0,0) is part of the inequality, we have that y > (1/3)x - 3.

I hope this helps! :)

Answer:

y > (1/3)x - 3.

Step-by-step explanation:

Answer:1. The measure of ∠WOV is 60°. You would use complementary angles that are adjacent (∠WOV, and ∠XOW)

2. The measure of ∠YOZ is 60°. You would use the vertical angles that are non-adjacent (∠WOV, and ∠YOZ). These two angles are congruent so they would have the same measure. These angles combined also create supplementary angles

3. Another way to find the measure of ∠YOZ would be to make/write an equation and solve for x. For example, (3x+30)°=60°. x would equal 10 because 10x3=30+30=60°

Step-by-step explanation:

1. Since a complementary angle would equal 90°, simply subtract 30° from 90° resulting in 60°.

2. Because vertical angles are congruent and (∠WOV, and ∠YOZ) are a pair of them, they equal the same as each other so they're both 60°.

3. You can make any equation with x included as long as it equals 60° mine was just an example you can make your own like 10x+10=60 or 4x+20=60. Also to create your equation you also need to use the angle fact of the vertical angles

Answer:

Area of a trapezoid = \(\frac{b_{1} +b_{2} }{2} h\)

Perimeter of a trapezoid = All of the sides added together

In this case:

Area: 32.5 m²

Perimeter: 26 m

Step-by-step explanation:

The area of a trapezoid is base 1 + base 2 divided by 2, and then multiplied by the height.

The perimeter of all shapes is all of the sides added together.

Hope it helps!

Answer:

Two places to the right of zero

Step-by-step explanation:

Answer:

2 places to the right

Explanation:

-3 + 5 = 2

Answer:

96, 672 yards

Step-by-step explanation:

Volume = Length · width · height

Volume = 114 · 212 · 4

Volume = 96, 672 yards

Answer:

4,3 and 1,4

Step-by-step explanation:

a) x=42

b) x=1.777777

c) x=60

Step-by-step explanation:

it will get cross multiplied and then simply

Answer:

2(8x + 18) and 4(4x + 9)

Step-by-step explanation:

16 and 36 are both evenly divisible by 2 and 4.  Thus, possible equivalents of 16x + 36 are 2(8x + 18) and 4(4x + 9).

Expressions equivalent to 16x + 36 are 4(4x+9) and 2(8x + 18).

Expressions in math are mathematical statements that have a minimum of two terms containing numbers or variables, or both, connected by an operator in between. The mathematical operators can be of addition, subtraction, multiplication, or division.

Given expression

16x + 36

= 4.4x + 4.9

16x + 36 = 4(4x+9)

= 2.2(4x + 9)

16x + 36 = 2(8x + 18)

Hence, 4(4x+9) and 2(8x + 18) are equivalent to 16x + 36.

Learn more about expression here:

https://brainly.com/question/14083225

#SPJ2

Answer:

A' (3,-3) B' (6,-9) C' (9,-3)

Step-by-step explanation:

multiply each of the numbers by 3 (scale factor)

Answer:

1) 60%   2) 125%   3) 48   4) 4.05   5) 4,000   6) 2

Explanation:

I'm not really sure how to explain this to you, but I want you to know that I used a calculator to check my answers.

I hope you get great grades :)

The function for the points are  y = -15x - 5

From the information given, we have that;

The points are;

(1/3,0) (-2 3/4,0) and (0,-5)

Using the point-slope form of a linear equation, we have;

y - y₁ = m(x - x₁)

Such that;

Using (1/3, 0) and (0, -5), we have that the slope is;

m = (0 - (-5))/0 -1/3)

expand the bracket

= 5 / (-1/3)

= -15

Now, take any of the given points and substitute the values

Using (1/3, 0), we get;

y - 0 = -15(x - 1/3).

y = -15x - 5.

Learn more about functions at: https://brainly.com/question/25638609

#SPJ1

The function for the points solved by  (1/3,0) (-2 3/4,0) and (0,-5) solved by point slope form is \(a=-15b-5\)

We have given the points:

(1/3,0) (-2 3/4,0) and (0,-5)

Using the formula of linear equation

\(a-\)\(a_{1}\)\(=x[b-b_{1}]\)                                                          

Where we will consider (1/3,0) = \(a-a_{1}\) and (0,-5) = \(b-b_{1}\)

that is 1/3 = \(a\), 0 = \(a_{1}\) and

0 = \(b\), -5 = \(b_{1}\)

\(x\) refers to the slope of line (take any variable)

Now for finding the value of \(x\),

\(x=a-a_{1}/b-b_{1}\)

inserting the values,

\(x=[0-[-5]]/[0-1/3]\\x= -15\)

Substitute the value of \(x\) in the equation

\(a-0=-15[b-1/3]\)

By simplifying the equation, we get

\(a=-15b-5\)

To know more about functions and points:

https://brainly.com/question/30721594