Can you help me with my math homework

Answer:

B

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

I dunno how to explain but A is the answer

The solution is, : A. f(n) = (n + 1)^2 – 1, the function represents f(n), the number of small squares in figure n.

Here, we have,

from the given diagram, we get,

the number of small squares in figures are,

Figure 1 is 3,

which be represented as,

3 = 4 - 1

 = 2² - 1

 = (1 + 1)² - 1

Figure 2 is 8  

which be represented as,

8 = 9 - 1

  = 3² - 1

  = (2 + 1)² - 1

Figure 3 is 15

which be represented as,

15 = 16 - 1

   = 4² - 1

   = (3 + 1)² - 1

so, we get,

the number of small squares in figure n will be,

The function is:

f(n) = (n + 1)² - 1

To learn more on function click:

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9514 1404 393

Answer:

  250

Step-by-step explanation:

Let 'a' represent the number of adult tickets sold. Then a-50 is the number of student tickets sold. The total number is ...

  a + (a -50) = 450

  2a = 500 . . . .simplify, add 50

  a = 250 . . . . . divide by 2

250 adult tickets were sold.

Answer:

12. parallel, 13. perpendicular

Step-by-step explanation:

Find the slope of both lines

AB:(6-3)/(2--2)=3/4

CD:(3-0)/(3--1)=3/4, the slope is the same so the lines are paralell

2. DO the same thing

AB:(4-2)/(5-0)=2/5

CD:(3-8)/(3-1)=-5/2, the slopes are opposite inverses so they are perpendicular

Answer:

1. parallel

2. perpendicular

Answer:

42

Step-by-step explanation:

Area of a rectange = bh so 98=14x

98 divided by 14 = 7

Perimeter= 2x+2y

so 2x+2y -> 28+14=42

Answer:

The first one is x=-y-2z-7

The second one is x=-1/3y + 1/3z + -4/3

The third one is x= 3y + 2z + 17

Answer:

The correct answer is,

[tex]x = 7[/tex]

Answer:

x= 7

Step-by-step explanation:

3(2x‐1) + 7 = 46

6x‐3+7= 46

6x+4= 46

6x = 42

x=42/6

x=7

Answer:

1. Axiom

Appropriate definition: An elementary mathematical truth that is assumed self-evident and not in need of proof (a).

2. Corollary

Appropriate definition: A theorem that is an immediate consequence (and perhaps special case) of another theorem (b).

3. Contradiction

Appropriate definition: A proposition that is always false (c).

4. Tautology

Appropriate definition: A proposition that is always true (d).

5. Theorem

Appropriate definition: An important true mathematical statements (e).

6. Lemma

Appropriate definition: A theorem that is needed as a stepping stone to prove a greater theorem (f).

Answer:

( 0 , 8)

Step-by-step explanation:

The y-intercept is when the graph intersects the y axis, in other words, when x is zero. Hence substitute 0 in for x

f ( x ) = 8 [tex]( 0.25 )^{x}[/tex]

f ( 0 ) = 8 [tex](0.25)^{0}[/tex]

Any number to the power zero is one;

f ( 0 ) = 8 * 1

f(0) = 8

The y-intercept is 8.

Answer:

45 minutes, hope this helps

Step-by-step explanation:

Answer:

45 minutes.

Step-by-step explanation:

Set up a ratio.

6 keychains: 30 minutes

divide both sides of the ratio by 6

1 keychain: 5 minutes

multiply both sides of the ratio by 9

9 keychains: 45 minutes

It will take him 45 minutes.

Answer:

The answer is 96 square feet because if you look at the first rectangle (the one on the top left), you should multiply 5 times 6 which equals 30. (The reason you would do this is because you want to find the area of all of the rectangles first and then add them together in order to get the total area of the rug.) Then, you would look at the second rectangle (the one on the right), and you would multiply 8 times 6 which is 48. Next, you would look at the last rectangle (the one on the lower left) and multiply 6 times 3 which is 18. Finally, you have to add 30+48+18 and then you would get your final answer which is 96 square feet.

Answer:

[tex] - \frac{4}{5} [/tex]

Step-by-step explanation:

1. Move the negative sing to the left.

[tex] - \frac{2}{5} - \frac{4}{10} [/tex]

2. simplify 4/10 to 2/5.

[tex] - \frac{2}{5} - \frac{2}{5} [/tex]

3. Simplify.

[tex] - \frac{4}{5} [/tex]

Therefor, the answer is, -4/5

-2/5+4/-10

=-2*-2+4*1

-10

=4+4

-10

=8

-10

=-4

5

therefore -4 is the answer.

5

Answer:

9, 5, -1, -5

Step-by-step explanation:

plug x values in for x to get y

Answer:

Total cost of All fee = $10,000

Step-by-step explanation:

Given:

Mortgage amount = $400,000

Origination fee = 0.2%

Intangible tax = 0.4%

Discount point = 1.9

Find:

Total cost of All fee

Computation:

Total cost of All fee = (Mortgage amount)(Origination fee) + (Mortgage amount )(Intangible tax) + (Mortgage amount )(Discount point)

Total cost of All fee = ($400,000)(0.2%) + ($400,000)(0.4%) + ($400,000)(1.9/100)

Total cost of All fee = $800 + $1,600 + $7,600

Total cost of All fee = $10,000

Answer

15

Step-by-step explanation:

Please mark brainliest.

Answer:

5/10 pounds just add 1 + 4 ( i think )

Answer:

42/10 or 4 2/10 is the answer

Step-by-step explanation:

Hope this Helps! :)

Answer:

x = 6.73

Step-by-step explanation:

tan17 = x / 22

x = 22 * tan17

x = 6.73

sin17 = 0.2924

cos17 = 0.9563

tan17 = 0.3057

Answe thanks

Step-by-step explanation:

Answer:

64 cm²

Step-by-step explanation:

Firstly,let us lay down the clues;

So, we have been given the Length and Width of the rectangle.

Rectangle;

Length= 10 cm

Width=6 cm

We know that

Perimeter= 2L + 2W

Perimeter= 10+10+6+6

Perimeter =32 cm

In the questionnaire, it is mentioned that a square has the same perimeter as the rectangle. That means, the perimeter of the square is similar to the one of the rectangle which is 32 cm.

So,

Perimeter of square =32 cm

Length of one side of the square =32÷4

=8 cm

Area= L × W

Area= 8 cm× 8 cm

Area= 64 cm²

Hope it helps.

Answer:

yes it can be represented by 1by2×5

Answer:

yes

Step-by-step explanation:

because it can

Answer:

The answer is 0.3^2 x 10 = the last number to get 0.9

then 0.9^2 = 0.81 x -10 = 8.1     the actual jump =  + 1

We go back 1 places before to do missing sum

so that 0.3 x 1  = 0.3 x -9 = -2.7

Therefore the +1 numbers are decreasing from 10  to -10 then increasing in negative value from -10 to -9 etc.

Answer:

x > -3

Step-by-step explanation:

1) Solve the inequality.

4x-2+x < 6x+1

5x-2 <6x+1

-5x       -5x

-2 < x+1

-1         -1

-3 < x

x > -3

Then, graph it.

Answer:

x = 58

Step-by-step explanation:

trust me i got the same question today on khan and apparently i accidently pressed next

so...

the person that answered first had the right set up but miscalculated

anyway...

you have to subtract on both sides because 32 was positive and two different signs would be 0:

x+32 = 90 degrees

  -32   -32

then 32 and -32 gets crossed out and then you do

90-32 = 58

you subtract because different signs...

therefore:

x=58

here's another way to solve it:

We simplify the equation to the form, which is simple to understand

x+32=90

We move all terms containing x to the left and all other terms to the right.

+1x=+90-32

We simplify left and right side of the equation.

+1x=+58

We divide both sides of the equation by 1 to get x.

x=58

Hope this helps

brainiest would be appreciated :)

Answer:

21.67

Step-by-step explanation:

look at the number in the 0.01 value then the number next to it

if it's five or above then the 7 goes up if it's 4 and below then the number stays the same. in this case the number will stay the same

Answer:

y= 2x-4

Step-by-step explanation:

Step-by-step explanation:

we will put -22 in the value of y

-22=5x-7

x will go the left hand side and will shift -22 and 5x

-5x= -7+22

-5x=+15

x=+15/-5

we will simplify it by 5 because both the numbers come in 5 time table

x=+3/-1

x=-3

so the value of x is -3

Answer:

4.50

Step-by-step explanation:

If you use x for burgers and y for fries:

1) 3x+2y=17.50

2) 2x+3y=15

You can then do a simultaneous equation by multiplying the first equation by 1.5 to cancel out the y (fries) to get x (burgers) on its own

1) 4.5x+3y=26.25

2) 2x+3y=15

By subtracting the two equations you get 2.5x=11.25

Then divide 11.25 by 2.5, you get x =4.5 so a burger is 4.50

A burger cost 4.50.

Let the cost of a burger be x.

Let the cost of a fries be y.

Since three burgers and two fries cost 17.50, this will be:

3x + 2y = 17.50 ......... i

Since two burgers and three fries cost 15.00, this will be:

2x + 3y = 15.00 .......... ii

Therefore, both equations will be:

3x + 2y = 17.50 ...... i

2x + 3y = 15.00 ....... ii

Multiply equation i by 2

Multiply equation ii by 3

6x + 4y = 35.00 ....... iii

6x + 9y = 45.00 ....... iv

Subtract equation iii from iv

5y = 10.00

y = 10.00/5

y = 2.00

Therefore, the cost of a frie is 2.00

Since the value of a frie has been gotten, it can be put into any of the equation. Using the equation:

3x + 2y = 17.50

3x + 2(2.00) = 17.50

3x + 4.00 = 17.50

3x = 17.50 - 4.00

3x = 13.50

x = 13.50/3

x = 4.50

Therefore, a burger cost 4.50.