HELP LAST ATTEMPT ( get marked brainliest show work

Step-by-step explanation:

[tex](\csc^2 a - 1)(\sec^2 a\sin^2 a)[/tex]

[tex]\:\:\:\:\:\:=\left(\dfrac{1 - \sin^2 a}{\sin^2 a}\right)\left(\dfrac{\sin^2 a}{\cos^2a}\right)[/tex]

[tex]\:\:\:\:\:\:= \dfrac{1 - \sin^2 a}{\cos^2 a}[/tex]

Using the identity [tex]\sin^2 a + \cos^2 a = 1[/tex]

[tex](\csc^2 a - 1)(\sec^2 a\sin^2 a) = \dfrac{\cos^2 a}{\cos^2 a} = 1[/tex]

Answer:

Step-by-step explanation:

In the equation y=kx+1, k is the slope and 1 is the y-intercept.

To find the slope, use the formula k=y2-y1/x2-x1. To use this formula, you need two points. The first point, point M, is given to you. The second point can be the y-intercept, point (0, 1). Now, apply the formula to find the slope: k=3-1/1-0

k=2/1

k=2

We now have the equation y=2x+1.

The next step is to graph the line.

First, graph the y-intercept. Should look something like this: (star represents point. the point is on (0, 1).)

           |

           |

           *

------------------------------

           |

           |        

Then, use the slope to find your second point: (the point is on (1, 3)).

           |    *

           |

           *

------------------------------

           |

           |        

Draw a line through those two points and you have your answer!

Answer:

<-8,10>

Step-by-step explanation:

Apply Regular Subtraction rules

(-8,10)

The present value of the payments is $73,600.87.

Present value of a cash flow is the value of the cash flow today. This is determined by adding the discounted cash flows of the cash flows together.  

Discounted year 1 cash flow: 10,000 / (1.06) = 9,433.96

Discounted year 2 cash flow: 10,000 / (1.06)^2 = 8,899.96

Discounted year 3 cash flow: 10,000 / (1.06)^3 = 8,296.19

Discounted year 4 cash flow: 10,000 / (1.06)^4 = 7,920.94

Discounted year 5 cash flow: 10,000 / (1.06)^5 = 7,472.58

Discounted year 6 cash flow: 10,000 / (1.06)^6 = 7,049.61

Discounted year 7 cash flow: 10,000 / (1.06)^7 = 6,650.57

Discounted year 8 cash flow: 10,000 / (1.06)^8= 6,274.12

Discounted year 9 cash flow: 10,000 / (1.06)^9 = 5,918.98

Discounted year 10 cash flow: 10,000 / (1.06)^10 = 5,583.95

The sum of the discounted cash flows = $73,600.87

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Answer:

2.5

Step-by-step explanation:

8.125/3.25 = 3.25x/3.25

2.5=x

x=2.5

Answer: 7/15

Step-by-step explanation:

Answer:

opposite is 7/15

Step-by-step explanation:

On a number line -7/15 is the same distance away from 0 as 7/15.

Answer:

0.64

Step-by-step explanation:

Answer:

90

Step-by-step explanation:

1+1=2

Answer:

Step-by-step explanat ion-6< 3 :

Answer: x= -0.3,2

Step-by-step explanation:

Combine your like terms then solve.

Answer:

Step-by-step explanation:

Sum = 5

Product = -6

Factors = (-1) ; 6    {-1+ 6 = 5  & (-1)*6 = -6}

3x² + 5x - 2 = 0

3x² - x + 6x - 2 = 0

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

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

Answer:

regrouping: 1  1

first addend: 2 8 7

second addend:  5 6

sum: 3  4  3

Step-by-step explanation:

first: add the digits in the ones column  

2  8  7

+   5  6

        13

because the answer is two digits, you leave the digit in the ones space in the answer, and move the digit in the tens space to the regrouping area above the tens column in the problem. it should look like this:

  1

2  8  7

+  5  6

       3

then add the digits in the tens column. you also add the regrouped number.

   1

2  8  7

+  5  6

   14 3

once again, the answer is two digits, so you repeat the same process, except since the digits are already in the tens place, you move the first digit above the hundreds place:

1   1

2  8  7

+  5  6

   4 3

add the hundreds column:

1   1

2  8  7

+  5  6

3  4  3

this is you answer

have a wonderful day <3

The sum of the number 287 + 56 by vertical table will be 343.

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.

Use the table to add 287 + 56 vertically. Then we have

                                 Hundreds          Tens          Ones

Regrouping                    1                       1            

First addend                  2                      8                7

Second addend            0                      5                6

Sum                               3                       4                3

The sum of the number 287 + 56 by the vertical table will be 343.

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Answer:

c = 9.

Step-by-step explanation:

Complete the square:

x^2 - 6x + (-3)^2 = 0

x^2 - 6x + 9 = 0

(x - 3)^2 = 0

so the root is 3 and c = 9.

Step-by-step explanation:

Subtract

x2

from both sides of the equation.

−6x+c=−x2

Add

6x

to both sides of the equation.

c=−x2+6x

Answer:

Diamter=7 meter

Step-by-step explanation:

One full turn means we have 360° of theta which equals 2pi in radinas

And arc length is 22 so using the equation theta= L/r = 2pi=22/r so r= 3.50 and diameter= 2r =7 m

Answer:

$13.20

Step-by-step explanation:

84.6-5.4=79.2

79.2/6=13.2

Answer:

Step-by-step explanation:

Sum of two digits can be less than 20, therefore A = 1 is the only option for A, since AB ≤ 19.

Substitute A:

Then Y = 0 or Y = 5.

Y = 0 doesn't work as it leads to B = 1, which is a repeat of A.

So Y = 5.

Substitute Y:

We see B = 2 is the only option for B, since X + Z = 11, add 1 to 1 (5 + 5 gives us 1 for 10).

Substitute B:

Possible options for X and Z:

[tex]\\ \rm\Rrightarrow 2^{x+1}=5^{3x}[/tex]

[tex]\\ \rm\Rrightarrow ln2^{x+1}=ln5^{3x}[/tex]

[tex]\\ \rm\Rrightarrow (x+1)ln2=3xln5[/tex]

[tex]\\ \rm\Rrightarrow xln2+ln2=3xln5[/tex]

[tex]\\ \rm\Rrightarrow ln2=3xln5-xln2[/tex]

[tex]\\ \rm\Rrightarrow ln2=x(3ln5-ln2)[/tex]

[tex]\\ \rm\Rrightarrow x=\dfrac{ln2}{3ln5-ln2}[/tex]

Answer:

A. 8/11 is larger because when using cross multiply 2 times 11 is 22 while 8 times 3 is 24

B. 23/33

Step-by-step explanation:

Answer:

31.4 cm2

Step-by-step explanation:

The radius of the circle is 10cm.

The formula for area of a circle is: A= pi r^2.

If we plug this in, [tex]A=3.14(10)^{2}= 134[/tex]

Now divide that by 4. This gives you 33.5, which 31.4 is closest to.

Answer:

Step-by-step explanation:

The correct one is given below:

- 5 - 4w = - 17

+5            + 5

     - 4w = -12

      - 4      -4          

        w = 3

The error is 4w instead of - 4w

Answer:

268.4

Step-by-step explanation:

20% in decimals is 0.2

to find 20% of 1342, you multiply 0.2 by 1342

0.2 x 1342 = 268.4

[tex] 5x +(3x −3)=6x +11\\\\5x+3x-3=6x+11\\\\5x+3x-6x=11+3\\\\2x=14\\\\x=\frak{\dfrac{14}{2}}\\\\x=7 [/tex]

Answer:

2/3

Step-by-step explanation:

Three and three fifth = 18/5 and 5 and two fifth = 27/5

The ratio 18/5 to 27/5 = (18/5) / (27/5)

                                     =  18/5 ÷ 27/5  

                                     = 18/5 · 5/27

                                      = 18/27

                                      = 2/3

Answer:

losing,losing,losing.

The lower bound for the 95% confidence interval for the percentage of voters that believe that the United States is losing the War is 33.8%.

Upper and lower bounds are the maximum and minimum values that a number could have been before it was rounded. They can also be called limits of accuracy. The upper and lower bounds can be written using error intervals.

The lower bound for the 95% confidence interval can be calculated using the following formula:

Lower Bound = Percentage - (1.96 * Margin of Error)

In this case, the lower bound is calculated as:

Lower Bound = 38% - (1.96 * 2%) = 33.8%

Therefore, the lower bound for the 95% confidence interval for the percentage of voters that believe that the United States is losing the War is 33.8%.

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Answer:

44.44

Step-by-step explanation:

Answer:

Joe is selling eggs on the market. He has a total of 300 eggs to sell. He is selling the eggs in batches of x amount of eggs. A customer wants to buy 15 batches of eggs. After the transaction, Joe's total amount of eggs is less than Macy's. Macy has a 200 eggs.

Real world scenarios can be represented by inequalities, and vice versa.

The inequality is given as:

[tex]300 - 15x < 200[/tex]

A possible scenario is as follows

How long will it take the number of people in a train station to be less than 200, if there are currently 300 people at the station, and 15 people leave the station every minute.

In the above scenario;

x represents the number of minutes

Since 15 people leave each minute, then 15x people would have left after x minutes.

The initial population is given as 300.

So, the current population after x minutes is 300 - 15x.

The current population is to be less than 200.

So, we have:

[tex]300 - 15x < 200[/tex]

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