Use an identity to find the value of

Use An Identity To Find The Value Of

Answers

Answer 1

Answer:

sin Ф.

Step-by-step explanation:

Cos (-270) = cos 90 = 0 and sin(-270) = sin 90 = 1.

So cos ( Ф - 270) =   cos Ф cos (-270) + sin Ф sin(-270)

=  cos Ф * 0 + sin Ф * 1

= sin Ф.


Related Questions

Using the table below, what is Tyson's take-home pay?
Tyson
Esmerelda Xavier
Annual Salary
$42,500
$60,000
$32,000
Federal Income Tax
$8500
$12,000
$6400
FICA
$3251
$4590
$2448
Disability Insurance
$2125
$3000
$1600
Life Insurance
$100
$150
$75
OA. $40,260
OB. $21,437
OC. $28,524
OD. $32,000
SUBMIT

Answers

The take-home pay of Tyson after deduction of his obligations from total income equals to $28,524.

What is a take-home pay?

This means the net income that an individual takes home.

Take-home pay = Annual Salary - Federal Income Tax - FICA - Disability Insurance - Life Insurance

Take-home pay = $42,500 - $8,500 - $3,251 - $2,125 - $$100

Take-home pay = $28,524

Thus, the take-home pay of Tyson after deduction of his obligations from total income equals to $28,524.

Therefore, the Option C is correct.

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5. Find all the two-digit numbers which are increased by 75% when their digits are reversed.

Answers

Answer:

Let a two digit number be, 10x + y.

75% of the number is,

= 75 % of (10 x + y)

= 75/100 × (10x+y)

= 3/4 × ( 10x + y)

According to the question, When increased by 75%, The digits must be reversed.

So,

(10 x + y) + 3/4 ( 10x + y) = 10y + x

4 (10x + y) + 3 ( 10x + y) = 4 ( 10y + x)

7(10x + y) = 4(10y + x)

70x + 7y = 40y + 4x

70x - 4x = 40 y - 7y

66x = 33y

2x = y

So,

x = 1, y = 2, 10x + y = 12

x = 2, y = 4, 10x + y = 24

x = 3, y = 6, 10x + y = 36

x = 4 , y = 8 , 10x + y = 48

x can't be 5, as y will be 10 ( y should be a single digit).

Therefore, 4 two digit numbers are possible.

Simplify 6 plus the square root of negative 80.

Answers

The given statement can be written as:

6+√-80

To solve √-80 re-write -80 as -1 * 80

Now √-80 =√-1 * 80

Now we can write it as:

6+ √-1 * √80

We know that √-1 = i

Thus it becomes:

6+ i√80

Now find the square root of 80

80 does not have a perfect square root

Its square root can be found as 80 = 4*4*5

Then,

6+i√4*4*5

Notice that 4 makes a pair.. So we will write it outside the square root

6+1*4√5

We will write it as:

6+4i√5

Thus the correct option is 6 plus 4 i times the square root of 5....

the table shows the total cost for the number of raffle tickets purchased. write an equation that represents the relationship between these two quantities. Use the equation to find the cost of 6 tickets

Answers

The total cost for the number of raffle tickets is given by y = 4x; while the cost of 6 tickets is $24

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

Let y represent the total cost of x tickets.

From the table:

1 ticket cost $4, hence:

y = 4x

The cost of 6 tickets is:

y = 4(6) = 24

The total cost for the number of raffle tickets is given by y = 4x; while the cost of 6 tickets is $24

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If johns meal provided 50 grams of fat and 30 grams of protein how many calories in total did he consume

Answers

Answer: 570 total calories

Step-by-step explanation:

450 calories in 50 grams of fat

120 calories in 30 grams of protein

120 + 450= 570

can you find the area and perimeter A=, P=??

Answers

area: 37.74 yds

you get this by multiplying the length and width

perimeter: 25 yds

you get this by adding up the length of each side

NEEED HELPPPP TRYING NOT TO FAIL MATHH !!

Answers

the answer is C hope it helped

An ice cream shop sells 6 different flavors, 4 toppings, and 3 types of cones. How many different combinations of three different flavors, one topping, and one cone are possible?

Answers

Answer:

Step-by-step explanation:

1440.

A student is asked to find the length of the hypotenuse of a right triangle. The length of one leg is 32 centimeters, and the length of the other leg is 21 centimeters. The student incorrectly says that the length of the hypotenuse is 7.3 centimeters. Answer parts a and b. a. Find the length of the hypotenuse of the right triangle to the nearest tenth of a centimeter. cm. The length of the hypotenuse of the right triangle to the nearest tenth of a centimeter is (Round to the nearest tenth as needed.)

Answers

Answer:

Step-by-step explanation:

You need the Pythagorean Theorem to solve this question. There is no be part.

Equation

c^2 = a^2 + b^2

Givens

a = 32

b = 21

c = ?

Solution

c^2 = a^2 + b^2              Substitute the values

c^2 = 32^2 + 21^2          Expand

c^2 = 1024 + 441            Combine

c^2 = 1465                     Take the square root of both sides

√c^2 = √1465  

c = 38.275

Answer: 38.3 rounded

Find the remainder when x3-4x2-7x+10 is divided by x+2

Answers

Answer:

Remainder is 0

Hope this helps

An airplane flight has 207 seats. the probability that a person who buys a ticket actually goes on that flight is about 90%. if the airline wants to fill all the seats on the flight, how many tickets should it sell?

Answers

Answer:

230 tickets

Step-by-step explanation:

Create a proportion using the given information:

Let's set x equal to the number of tickets that need to be sold.

[tex]\frac{207}{90} =\frac{x}{100}[/tex]

Cross multiply and you get:

[tex]90x=20700\\[/tex]

Then divide both sides by 90 to get:

[tex]x = 230[/tex]

This means that 230 tickets need to be sold in order to fill all of the seats on the flight.

Find the 12th term of the geometric sequence 4, 8, 16, ...

Answers

Answer:

8192

Step-by-step explanation:

The pattern is mulitply by 2 to get the next term

4*2=8

8*2=16

So: 4,8,16,32,64,128,256,512,1024,2048,4096,8192

Sadie is 3 years older than Kareem, and Kareem is twice as old as Nadra. The sum of their ages is 33.

A student used the steps below to find each person’s age.

Step 1 Write an equation, letting x represent Kareem’s age:
(x + 3) + x + 2 x = 33
Step 2 Solve the equation:
(x + 3) + x + 2 x = 33. 3 + 4 x = 33. 4 x = 30. x = 7 and one-half.
Step 3 Sadie is 10 and one-half, Kareem is 7 and one-half, and Nadra is 3 and three-fourths.

Which corrects the student’s first error?

Answers

Answer:

Step 1-Write an equation, letting x represent Kareem’s age:

(x + 3) + x + 2 x = 33

Step 2-Solve the equation:

(x + 3) + x + 2 x = 33. 3 + 4 x = 33. 4 x = 30. x = 7 1/2.

Step 3-Sadie is 10 1/2, Kareem is 7 1/2, and Nadra is 3 3/4.

Which corrects the student’s first error?

1. In Step 1, the student should have used One-half x to represent Nadra’s age, and written the equation (x + 3) + x +1/2x = 33.

2. In Step 2, the student should have added 3 on both sides of the equation to find a solution of x = 9.

3. In Step 3, the solution represents Sadie’s age. Therefore, Sadie is 7 1/2, Kareem is 4 1/2, and Nadra is 2 1/4.

4. In Step 3, Nadra’s age is the difference between 33 and Sadie’s and Kareem’s ages, so Nadra is 15.

Can someone explain this?

Answers

Answer:

see the attachment!

i hope this can help you.

There are 1560 students enrolling at Green Woods middle school. If 85% of the students ride the bus, how many do not ride the bus

Answers

1560*0.85 = 1326

1326 people on bus

1560 - 1326 = 234

234 people did not ride the bus.

Answer:

234 students

Step-by-step explanation:

% Don't ride the bus = 100% - % Ride the bus

% = 100% - 85%% = 15%

Number of students who don't ride the bus :

1560 x 15%1560 x 3/2078 x 3234 students

F(x,y) = 4 ; r is the region enclosed by the petal of a rose curve r = sin*2theta)

Answers

The area of the region enclosed by the petal of a rose curve r = sin2θ in the first quadrant is π/8 square units

What is integration?

It is defined as the mathematical calculation by which we can sum up all the smaller parts into a unit.

We know the area in the polar coordinates is given by:

[tex]\rm A =\int\limits^a_b {\dfrac{1}{2}r^2} \, d\theta[/tex]

We have r = sin2θ

Here the quadrant is not given, so we are assuming we need to find the area in the first quadrant.

Put this value in the above integration and limit 0 to π/2

[tex]\rm A =\int\limits^{\dfrac{\pi}{2}}_0 {\dfrac{1}{2}(sin^22\theta)} \, d\theta[/tex]

After solving the above integration, we get:

[tex]\rm A = \dfrac{\pi}{8}[/tex]

Thus, the area of the region enclosed by the petal of a rose curve r = sin2θ in the first quadrant is π/8 square units

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can someone help me with this?
Thank you!

Answers

i think this is correct but i’m so sorry if it’s wrong.
so the scale factor is 12/4=3
so the perimeter is 16*3=48
hope this helps:)

A box of facial tissues is 22cm by 10.5 cm by 8cm. How much cardboard is on the outside surface?

Answers

Answer:

1848 cm

Step-by-step explanation:

You would multiply 22 by 10.5 by 8 centimeters which would equal 1848 centimeters.

Please answer fast and give expaination I will give brainliest

Answers

Answer:

Agree.

Step-by-step explanation:

1. (5^r)^t can be represented simply as 5^rt.

2. when r as negative integer, t as positive integer, rt is always a negative integer

3. when ever the indices rt is negative, the number 5^rt will be less than 1, thus cannot be a whole number for sure.

This number line models the division problem ​1/3÷6​ . What is the quotient? Enter your answer as a fraction in simplest form by filling in the boxes.

Answers

Answer: 1/200

Step-by-step explanation:

1/6 divided  by 6 is equal to 0.05555555555 Which is equal to about 1/200

what is the measure of MOP Angle MON is a straight angle and OP bisects MOQ

Answers

The measure of the angle MOP is 61° (Third option)

What is an angle?

The angle is defined as the span between two intersecting lines or surfaces at or close to the point where they meet.

Angle MON is a straight angle → ∠MON=180°

∠QON=58° (according to the graph)

OP bisects angle ∠MOQ, then OP divides angle ∠MOQ into two equal angles:

∠MOP=∠POQ=∠MOQ/2  (1)

∠MOQ+∠QON=∠MON

Replacing the known values in the equation above:

∠MOQ+58°=180°

Solving for ∠MOQ: Subtracting 58° on both sides of the equation

∠MOQ+58°-58°=180°-58°

∠MOQ=122°

Replacing ∠MOQ by 122° in the equation (1)

(1) ∠MOP=∠POQ=122°/2

∠MOP=∠POQ=61°

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Which ordered pair is a solution to the equation? y = 4x + 15 (15,0) 0 (7.-2) (-1,4) (-3, 3)​

Answers

Always solve for the bracket first

Simplify the expression. Write your answer as a power.
(-6.4)⁸
(-6.4)⁶
The simplified expression is

Answers

The expression [tex]\frac{(-6.4)^8}{(-6.4)^6}[/tex] is an exponential expression and the value of the expression is 40.96

How to evaluate the expression?

The expression is given as:

[tex]\frac{(-6.4)^8}{(-6.4)^6}[/tex]

Expand the expression by applying the law of indices

[tex]\frac{(-6.4)^8}{(-6.4)^6} = (-6.4)^{8-6}[/tex]

Evaluate the difference

[tex]\frac{(-6.4)^8}{(-6.4)^6} = (-6.4)^2[/tex]

Evaluate the exponent

[tex]\frac{(-6.4)^8}{(-6.4)^6} = 40.96[/tex]

Hence, the value of the expression is 40.96

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Solve for x????????????????????

Answers

[tex] \huge \tt \color{pink}{A}\color{blue}{n}\color{red}{s}\color{green}{w}\color{grey}{e}\color{purple}{r }[/tex]

[tex] \large\underline{ \boxed{ \sf{✰\: Concept }}}[/tex]

➣ Given two paris are linear pairs➣ We know that sum of linear pairs is equal to 180⁰➣ Linear :- Having the form of a line; straight or roughly straight; following a direct course.

[tex] \large\underline{ \boxed{ \sf{✛\: Assumptions\:✛ }}}[/tex]

➣ let given two angles be p and q that is ➣ angle p is 3x-4➣ angle q is 3x-8➣ we have to find "x" in the given expressions

[tex] \large\underline{ \boxed{ \sf{✰\: let's\:solve }}}[/tex]

[tex] \rm\angle \: p + \angle \: q = 180 \degree \\ [/tex]

★ Substituting values

[tex] \rm { \pink➾ \:( 3x - 4) + (3x - 8) = 180} \\ \rm { \pink➾}arranging \: and \: solving \: like \: terms \\ \rm { \pink➾ \: 3x + 3x - 4 - 8 = 180} \\ \rm { \pink➾ \: 6x - 12 = 180} \\ \rm { \pink➾6x = 180 + 12}[/tex]

[tex] \qquad \qquad\rm { \pink➾6x = 192} \\ \qquad\qquad\rm { \pink➾ \: x = \frac{ \cancel{192}}{ \cancel6} } \\ \qquad\qquad\rm { \pink➾x = 32}[/tex]

★ Hence the value

[tex] \boxed{↪\underline{ \boxed{ \rm{\: x = 32\green✓}}}↩}[/tex]

[tex] \rule{70mm}{2.9pt}[/tex]

Hope it helps !

Please explain, I don't know how to solve.​

Answers

it's base× height (same as a rectangle:

4×5=20

the triangle, 3, and right angle are there just to confuse you :)

Which of the following systems is equivalent to the given system?
1/2x - 1/5y = 2
x+ 2/3 y = 5

A: 5 x - 2 y = 20 and 3 x + 2 y = 5
B: 5 x - 2 y = 20 and 3 x + 2 y = 15
C: 2 x - 2 y = 20 and 3 x + 2 y = 5

Answers

Answer:

Option B is correct.

Explanation:

1st Equation

Remove the denominators:

[tex]\sf \rightarrow \dfrac{1}{2}x - \dfrac{1}{5} y = 2[/tex]

make the denominator's same

[tex]\sf \rightarrow \dfrac{5}{10}x - \dfrac{2}{10} y = 2[/tex]

Join the fraction's:

[tex]\sf \rightarrow \dfrac{5x-2y}{10} = 2[/tex]

Multiply both sides by 10

[tex]\sf \rightarrow {5x-2y} = 20[/tex]

2nd Equation

Remove the denominators:

[tex]\rightarrow \sf x + \dfrac{2}{3}y =5[/tex]

make the denominator's same

[tex]\rightarrow \sf \dfrac{3x}{3} + \dfrac{2}{3}y =5[/tex]

Join the fraction's:

[tex]\rightarrow \sf \dfrac{3x+2y}{3} =5[/tex]

Multiply both sides by 3

[tex]\rightarrow \sf 3x+2y} =15[/tex]

Answer:

B)  5x - 2y = 20  and  3x + 2y = 15

Step-by-step explanation:

Rewrite both equations in standard form:

Equation 1

[tex]\dfrac{1}{2}x-\dfrac{1}{5}y=2[/tex]

Multiply both sides by 10:

[tex]\implies \dfrac{1 \cdot 10}{2}x-\dfrac{1 \cdot 10}{5}y=2 \cdot 10[/tex]

[tex]\implies \dfrac{10}{2}x-\dfrac{10}{5}y=20[/tex]

[tex]\implies 5x-2y=20[/tex]

Equation 2

[tex]x+\dfrac{2}{3}y=5[/tex]

Multiply both sides by 3:

[tex]\implies x \cdot 3+\dfrac{2 \cdot 3}{3}y=5 \cdot 3[/tex]

[tex]\implies 3x+2y=15[/tex]

Therefore, the equivalent system is:

5x - 2y = 20  and  3x + 2y = 15

Gianna rojas
megan, julie, and anna together made $18.75 raking
leaves. they used the equation 3n = 18.75 to determine
the amount of money each person would earn. what is the
value of n?

Answers

By dividing both sides by 3, we conclude that each person gets $6.25.

How to get the value of n?

Here we want to solve the equation:

3n = 18.75

for n.

Remember that if we perform the same operation in both sides of the equality, then the equality remains true.

So here we can divide both sides of the equation by 3, so we get:

(3n)/3 = 18.75/3

n = 18.75/3 = 6.25

n = 6.25

So we can conclude that each one gets $6.25

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on a coordinate plane what is the distance between the point at (4,7) and the point (-4,7)

Answers

Answer: 8 units

Step-by-step explanation:

  We will use the distance formula.

[tex]\displaystyle d=\sqrt{(x_{2}-x_{1})^2 +(y_{2}-y_{1})^2}[/tex]

[tex]\displaystyle d=\sqrt{(-4-4)^2 +(7-7)^2}[/tex]

[tex]\displaystyle d=\sqrt{(-8)^2 +(0)^2}[/tex]

[tex]\displaystyle d=\sqrt{64[/tex]

d = 8

GIVING THREE BRAINLIEST PLS HURRY

A sentence with antonyms has two words with
somewhat different meanings
opposite meanings
similar meanings
the same meanings

Answers

Answer:

opposite meanings

Step-by-step explanation:

An antonym is a word that means the opposite of another word

In the circus, a lion has been trained to jump through a ring of fire that has a radius of 1 meter. What is the ring's circumference?

Answers

A circle is a curve sketched out by a point moving in a plane. The circumference of the ring of fire is 6.2831 meters.

What is a circle?

A circle is a curve sketched out by a point moving in a plane so that its distance from a given point is constant; alternatively, it is the shape formed by all points in a plane that are at a set distance from a given point, the centre.

The circumference of the ring if the radius is 1 meter is,

Circumference of the ring = 2πr = 2 × π × 1 = 6.2831 meters

Hence, the circumference of the ring of fire is 6.2831 meters.

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