MATHEMATICS
MIDDLE SCHOOL

Answer: So,

First, find 1% by dividing 11 by 4.

11 * 0.25 = 2.75

Since 2.75 = 1%, we can simply move the decimal place two places to the right to get 100%.

2.75 --> 275

4% of 275 is 11.

First, find 1% by dividing 11 by 4.

11 * 0.25 = 2.75

Since 2.75 = 1%, we can simply move the decimal place two places to the right to get 100%.

2.75 --> 275

4% of 275 is 11.

HIGH SCHOOL

Multiply

5 x (-4) = ?

5 × -4 = -20

+ × - = -

+ × + = +

- × - = +

+ × - = -

+ × + = +

- × - = +

5 × -4 = -20.

+ × - = -

+ × - = -

HIGH SCHOOL

B is the midpoint of AC and E' is the midpoint of BD. If A(-9,-4), C(-1, 6), and E(-4,-3), find the coordinates of D.

Answer:

The coordinates of D are:

(-3,-7)

Step-by-step explanation:We know that if a point B(c,d) is located in middle of two points i.e. A(a,b) and C(a',b').

Then the coordinates of B is given by:

It is given that:

B is the midpoint of AC.

A(-9,-4), C(-1, 6).

Hence, the coordinates of B(x,y) is given by:

i.e. the coordinates of B are: (-5,1).

E is the midpoint of BD.

Let the coordinates of D be (w,z)

Also, E is located at E(-4,-3).

i.e.

Hence, the coordinates of D are: (-3,-7)

The coordinates for D are (-4, -7)

First we must locate point B as it is vital to finding the midpoint of BD. To do this, we take the average of the endpoints AC since B is its midpoint.

x values = -9 + 1 = -8

Then divide by 2 for the average -8/2 = -4

y values = -4 + 6 = 2

Then divide by 2 for the average 2/2 = 1

Therefore B must be (-4, 1)

Now we know the values of E must be the average of B and D. So we can write equations for each coordinate since we know they are averages.

x - values = (Bx + Dx)/2 = Ex

(-4 + Dx)/2 = -4 ---> multiply both sides by 2

-4 + Dx = -8 ---> add -4 to both sides

Dx = -4

y - values = (By + Dy)/2 = Ey

(1 + Dy)/2 = -3 ---> multiply both sides by 2

1 + Dy = -6 ---> subtract 1 from both side

Dy = -7

So the coordinates for D must be (-4, -7)

First we must locate point B as it is vital to finding the midpoint of BD. To do this, we take the average of the endpoints AC since B is its midpoint.

x values = -9 + 1 = -8

Then divide by 2 for the average -8/2 = -4

y values = -4 + 6 = 2

Then divide by 2 for the average 2/2 = 1

Therefore B must be (-4, 1)

Now we know the values of E must be the average of B and D. So we can write equations for each coordinate since we know they are averages.

x - values = (Bx + Dx)/2 = Ex

(-4 + Dx)/2 = -4 ---> multiply both sides by 2

-4 + Dx = -8 ---> add -4 to both sides

Dx = -4

y - values = (By + Dy)/2 = Ey

(1 + Dy)/2 = -3 ---> multiply both sides by 2

1 + Dy = -6 ---> subtract 1 from both side

Dy = -7

So the coordinates for D must be (-4, -7)

HIGH SCHOOL

Which of the following is an infinite set? the set of lessons in this course the set of even numbers from 0 to 10 10 billion the set of integers the null set none of the above

The set of integers is the only infinite set from the given options.

Given,

The set of even numbers from 0 to 10.

10 billion.

The set of integers.

The null set.

We need to find which of the followings are infinite sets.

What is a finite and infinite set?

A set can be a finite or infinite set.

Finite sets are a set that has a fixed set of numbers or items.

Example:

Even number less than 10 = {0,2,4,6,8}

Infinite sets are those sets that continue endlessly.

Example:

Set of natural number = {1,2,3,4,5,..........∞}

Find which of the following are infinite sets.

The set of even numbers from 0 to 10.

We have,

= { 0, 2, 4, 6, 8, 10 }

This is a finite set.

10 billion.

This is a finite set because we can count to 1 billion and we stop there.

The set of integers.

= { 0, ±1, ±2, ±3, ±4, ±5, ±6, ±7, ±8, ...............±∞ }

This is an infinite set.

The null set.

= Ф

This means there are no items or numbers in the null set.

So, we can say that it is a finite set.

Thus the set of integers is the only infinite set.

Learn more about the finite and infinite sets here:

brainly.com/question/17868827

#SPJ2

The set of integers is the infine set

HIGH SCHOOL

if two similar hexagons have a side length ratio of 1/2, then the ratio of their perimeters is? A)1/4 B)1/6 C)1/2 D)1/3

P = 6a

6(1) = 6

6(2) = 12

ratio of their perimeters = 6/12 = 1/2

answer is C)1/2

6(1) = 6

6(2) = 12

ratio of their perimeters = 6/12 = 1/2

answer is C)1/2

HIGH SCHOOL

Consider the quadratic function: f(x) = x2 – 8x – 9 Vertex: What is the vertex of the function?

F(x)=x^2-8x-9=

Answer : (4,-25)

Answer : (4,-25)

the answer is ( 4 , - 25 )

:)

COLLEGE

Barbara is a waitress and she usually takes between 5 and 9 tables at a time. She found that when she is assigned five tables, she averages $15 in tips per table per shift. If she is assigned more tables, the amount of attention she gives to each table decreases. Therefore, she averages less in tips per table. Suppose each additional table causes every table to bring in $3 less in tips. Which of the following equations could be used to find the amount of money she would make in tips if she takes 5 + x tables? A.

T(x) = -3x2 + 75

B.

T(x) = 20 - x

C.

T(x) = x2 + 5x

D.

T(x) = 3x2 + 75

Answer:

A. T(x) = -3x² + 75

Step-by-step explanation:

The number of tables she takes is 5 + x. The amount she makes from each table is 15 − 3x. So the total is:

T(x) = (15 − 3x) (5 + x)

T(x) = 3 (5 − x) (5 + x)

T(x) = 3 (25 − x²)

T(x) = 75 − 3x²

Answer:

A.

Step-by-step explanation:

MIDDLE SCHOOL

50 sevens minus 3 seven

50*7=350

3*7=21

350-21=329

329 Answer

3*7=21

350-21=329

329 Answer

HIGH SCHOOL

A grain storage bin has the following dimensions, 11 feet high, 28 feet long and 12 feet wide. The volume of 1 bushel is 2200 cubic inches or 1.273 cubic feet.

a) How many bushels of wheat can the bin hold? Answer to the nearest 10th

b) What would the weight of the wheat be in tonnes if the bin was full?

(1 bushel = .021722 tonne)

how to do it!

11 x 28 x 12= volume of storage bin

divide volume of storage bin by the volume of 1 bushel and round to the nearest tenth.

multiply .021722 by how many bushels can fit in the bin.

11 x 28 x 12= volume of storage bin

divide volume of storage bin by the volume of 1 bushel and round to the nearest tenth.

multiply .021722 by how many bushels can fit in the bin.

MIDDLE SCHOOL

A Toyota Prius is able to drive 565 miles on 11.9 gallons of gasoline (highway driving). A Honda Accord can drive 619 miles on 17.2 gallons of gasoline (highway driving). a.Which car gets better gas mileage?

PLeas explain how you solved it!!

The 565 on 11.9 has better gas mileage because you have to find how many miles in one gallon which is 565/11.9=43.2 and for 619/17.2= 35.9. which one is higher 43.2 how this helps.