The answer I need to see if it’s correct

Answer:

Step-by-step explanation:

The cosine of angle Ф is √(1 - sin²Ф), which is positive if our angle 81 degrees is in Quadrant I.

sin 81° = 0.9877, so (sin 81°)² = 0.9755, and

cos 81° = 1 - 0.9755 = 0.0245

To find the cosine of 81 degrees in terms of sine, we use the identity cos(Ф) = sin(90° - Ф), giving us cos(81°) = sin(9°).

To find the cosine of 81 degrees in terms of sine, we use the trigonometric identity that relates sine and cosine for complementary angles. The cosine of 81 degrees is the same as the sine of 9 degrees, because 81 and 9 add up to 90 degrees. The trigonometric identity is cos(Ф) = sin(90° - Ф).

Using this identity:

cos(81°) = sin(90° - 81°)

= sin(9°).

Therefore, the cosine of 81 degrees is equal to the sine of 9 degrees.

Answer:

[tex](120\degree,-180\degree)[/tex]

Step-by-step explanation:

The given parametric equation is

x=2t  

y= -3t

The coordinates of any point lying on this curve can be obtained by substituting the parameter value.

Given the parameter value, t=60

We have

[tex]x=2(60\degree)=120\degree[/tex]

and

[tex]y=-3(60)=-180\degree[/tex]

Therefore the point[tex](120\degree,-180\degree)[/tex]

lie on this parametric curve.

Answer:

∠1 and ∠8 are alternate exterior angles

∠4 and ∠6 are same side interior angles

∠3 and ∠6 are alternate interior angles

Step-by-step explanation:

Verify each case

case 1) ∠1 and ∠8 are alternate exterior angles

The relationship is correct

case 2) ∠4 and ∠6 are same side interior angles

The relationship is correct

case 3) ∠5 and ∠7 are vertical angles

The relationship is incorrect

Because ∠5 and ∠7 are supplementary angles

case 4) ∠2 and ∠8 are  corresponding angles

The relationship is incorrect

case 5) ∠3 and ∠6 are alternate interior angles

The relationship is correct

Answer:

A) ∠1 and ∠8 are alternate exterior angles

B) ∠4 and ∠6 are same side interior angles

E) ∠3 and ∠6 are alternate interior angles

Step-by-step explanation:

Let's check the each options.

A) ∠1 and ∠8 are alternate exterior angles

The exterior angles are ∠1, ∠2, ∠7 and ∠8.

This is correct.

B) ∠4 and ∠6 are same side interior angles.

∠4 and ∠6 are inside the line m and n, they are in the same side, you can see it on the figure.

This is correct

C) ∠5 and ∠7 are vertical angles

∠5 and ∠7 are supplementary angles.

This is not correct.

D) ∠2 and ∠8 are  corresponding angles

These are same side of exterior angles.

This is not correct.

E) ∠3 and ∠6 are alternate interior angles

These are interior angles and alternative to each other.

This is correct.

Final answer:

To find the amount Carl and Linda Munson will have accumulated in 10 years, you can use the formula for compound interest. Plugging in the given values, their 401k retirement account will have approximately $3,639.48 after 10 years.

Explanation:

To find the amount Carl and Linda Munson will have accumulated in 10 years, we can use the formula for compound interest:

A = P(1+r)^n

Where:

A = amount accumulated after n years

P = principal amount

r = interest rate (in decimal form)

n = number of years

Using the given information, P = $2,100, r = 8% (or 0.08), and n = 10. Plugging these values into the formula:

A = $2,100(1+0.08)^10

Simplifying the expression:

A = $2,100(1.08)^10

Calculating the value:

A ≈ $3,639.48

Therefore, Carl and Linda Munson will have approximately $3,639.48 accumulated in their 401k retirement account after 10 years.

Answer:

ti guarantee it is 45 degree

Step-by-step explanation:

first the opposite angle of 39 will be 39

then 39 plus 42 is 81. a triangle is 180 so the third angle is 99.

so since supplementary angles also equal to 180 the other side is 81.

same with 126 the other side is 54.

now the triangle where x is we have found 2 angles 81 and 54 so the last one will be... drumroll... 45 since a triangle equals tk 180 degree.

Answer:

Step-by-step explanation:

45

Answer: X = 2.4

Step-by-step explanation:

The first step should be to isolate x or get x alone. This means we should get rid of the divided by 2 on the left by multiplying both sides by 2. This would get us to 2 * X/2 = 1.2 * 2. The multiplying X/2 would simplify to just X, and the 1.2 * 2 = 2.4. Therefore the final equation would become X = 2.4.

To check, you would plug in 2.4 into where X is in X/2 = 1.2. Since 2.4/2 = 1.2, we know that X = 1.2 from checking.

x = 2.4

You want to get x by itself, so you need to get rid of the division on the left side of the equals sign. The way to undo division is to multiply. So, multiply both sides of the equation by 2. This gives you x = 2.4, so now you have your answer.

Now, since the problem wants us to check our answer, we just put 2.4 back into the equation as x. This gives us 2.4 / 2 = 1.2. Now, we just simplify to see if the equation is true. If it is true, the answer is correct. 2.4 divided by 2 is 1.2, so 1.2 = 1.2, which means our answer is correct.

For this case we have that by definition, the total surface area of a right prism is given by:[tex]SA = ph + 2B[/tex]

Where:

p: Perimeter of the base

h: It's the height

B: It is the area of the base

So:

[tex]B = 6 * 2\\B = 12 \ cm ^ 2\\p = 6 + 6 + 2 + 2 = 16 \ cm[/tex]

So, we have:

[tex]SA = 16 * 5 + 2 (12)\\SA = 80 + 24\\SA = 104 \ cm ^ 2[/tex]

Answer:[tex]104 \ cm ^ 2[/tex]

Answer:x=8,y=1

Step-by-step explanation:

2x+4y=20

So, 4y=20-2x

So,2y=10-x

Now we can use this information to use in the second equation

3x+2y=26

3x+(10-x)=26

2x+10=26

2x=16

x=8

Now that we know that x=8, then we can solve for y.

2x+4y=20

2(8) +4y=20

16+4y=20

4y=4

y=1

Here is the process of how I did it:

Step 1:     Make this equation : 2x+4y = 20 equal x by isolating x and bring everything else on the right side of the equation

2x + (4y-4y) = 20 - 4y

2x = 20 - 4y

[tex]\frac{2x}{2}  = \frac{20 - 4y}{2}[/tex]

x = 10 - 2y

Step 2: In the other equation given (3x+2y=26​) every time you see an x replace it with the equation solved above (x = 10 - 2y). This will help you find the y

3x+2y=26​ ---> 3(10 - 2y)+2y=26​

10(3) - 2y(3) + 2y = 26

30 - 6y + 2y = 26

(30-30) - 4y = (26 - 30)

[tex]\frac{-4y}{-4} =\frac{-4}{-4}[/tex]

y = 1

Step 3: In the equation you found in step 1 (x = 10 - 2y) plug 1 into all the y's so you can find x

x = 10 - 2y ---> x = 10 - 2(1)

x = 10 - 2

x = 8

Hope this helped!

Answer

how many sides are there to the spinner?

Step-by-step explanation:

i need to knowhow many there are in order to give you a probibility

Answer:

option c

x + 4 = 64

and

option e

x = 60  

Step-by-step explanation:

Given in the question an expression

3∛x+4 = 12

∛x + 4 = 12/3

∛x + 4 = 4

Take cube on both sides of the equation

∛(x + 4)³ = 4³

x + 4 = 64

x = 64 - 4

x = 60  

Answer:

The third and the fifth equations are equivalent.

Step-by-step explanation:

First of all, you must find [tex]x[/tex] from [tex]3\cdot \sqrt[3]{x+4}=12[/tex] and check during the procedure what expressions from the options are equivalent.

The process is shown below:

From step 3, it could be said that the first, the second and the fourth options ARE NOT equivalent equations because when the left side is [tex]\sqrt[3]{x+4}[/tex], the right side must be [tex]+4[/tex], and these three options don't meet the condition.

From step 5, it could be said that the third option IS an equivalent equation because it is the same expression.

From step 7, it could be said that the fifth option IS an equivalent equation because it is the same expression.

Thus, the third and the fifth equations are equivalent.

Answer:

[tex]\boxed{\text{\$810.78}}[/tex]

Step-by-step explanation:

If regular pay = $14.35/h, then

Overtime pay = 1.5 × $14.35/h = $21.525/h

[tex]\begin{array}{rcr}\text{First 40 h at \$14.35/h}& = & \$574.00\\\text{Next 11 h at \$21.525/h} & = & 236.78\\\text{Gross pay}& = & \mathbf{\$810.78}\\\end{array}\\\\\text{Rob's gross pay for the week will be }\boxed{\textbf{\$810.78}}[/tex]

2*(l+b)

So,

2*(21+15)

2*36

=72

Answer:

Perimeter of rectangle is 72 feet.

Step-by-step explanation:

We need to find the perimeter of rectangle where

Length = 21 feet

Width = 15 feet are given.

The formula used will be: Perimeter of rectangle = 2(Length + Width)

So, Perimeter of rectangle is:

Perimeter of rectangle = 2(Length + Width)

                                      = 2 ( 21+15)

                                      = 2(36)

                                      = 72 feet.

So, perimeter of rectangle is 72 feet.

Answer: x=54

Step-by-step explanation:

When you add up all of the sides that have to equal 360 degrees. so, the first thing that you would do is 72+72. You would do that because there are actually 2 72 in the rhombus. That equals 144. then you would do 360-144. That equals 216. Then you would do 216/4. You would do 216/4 because there are actually 4 x in the rhombus. After you divide 216/4 it equals 54. to check your work you would do 54+54+54+54+72+72. That equals 360. So the value of x = 54 degrees.

can you just measure r and times that by 72

Answer:

As of 2021, for this question, the answer is "The range is positive real numbers (y>0)

Step-by-step explanation:

Hope this helps somebody!

The range is all real numbers is not a characteristic of the absolute value parent function.

Hence, the option which is not a characteristic of the absolute value parent function is The range is all real numbers.

Therefore, Option A is the correct answer.

To learn more about the absolute value parent function, refer to:

https://brainly.com/question/10538556

#SPJ2

Answer:

[tex]2^3\times2^{-4}=\frac{1}{2}[/tex]

Step-by-step explanation:

The given expression is

[tex](2^3)(2^{-4})[/tex]

This is the  same as;

[tex]2^3\times2^{-4}[/tex]

Recall that;

[tex]a^m\times a^n=a^{m+n}[/tex]

This implies that;

[tex]2^3\times2^{-4}=2^{3+-4}[/tex]

[tex]2^3\times2^{-4}=2^{-1}[/tex]

We now use the following law of exponents

[tex]a^{-m}=\frac{1}{a^m}[/tex]

This gives us;

[tex]2^3\times2^{-4}=\frac{1}{2}[/tex]

If the length of the rectangle is 6 and the perimeter is 54, multiply the length by 6 and subtract the answer from 54. Then, divide the answer by 2 to get the width.

So, I will use your formula for this as it is correct:

2l+2w=54

2(6)+2w=54

12+2w=54

2w=42

42/2=21

w=21

Therefore, your length is 21. Hope this helps!

The width of the rectangle is 21cm

                 =21 cm answer.

Learn more about perimeter here:-https://brainly.com/question/19819849

#SPJ2

Answer:

fd akkkkcm

Step-by-step explanation:

The measure of arc CB is 236°.

find the measure of the indicated arc in circle O.

Given information:

-[tex]\(m\angle DOC = 44°\)[/tex]

- [tex]\(m\angle COB = 80°\)[/tex]

We want to find the measure of arc CB.

1. Calculate the central angle containing arc CB:

  - The sum of the central angles [tex]\(m\angle DOC\) and \(m\angle COB\)[/tex]gives the measure of the entire circle.

  - Total degrees in a circle = 360°

  - Central angle containing arc CB = [tex]\(m\angle DOC + m\angle COB\)[/tex]

   [tex]\[m\angle DOC + m\angle COB = 44° + 80° = 124°\][/tex]

2. Find the measure of arc CB:

  - Subtract the central angle from 360° to get the measure of arc CB.

[tex]\[m\text{ arc CB} = 360° - 124° = 236°\][/tex]

Therefore, the measure of arc CB is 236°.

Answer:

23

Step-by-step explanation:

the absolute value of -23 is 23 (distance from 0)

Answer: George McClellan did

Step-by-step explanation:

Answer:

D McClellan

Step-by-step explanation:

In 1862, president Abraham Lincoln decided to relieve General George McClellan of his command after the Battle of Antietam. The reason is McClellan was unable to concentrate his forces effectively, so the Confederate army shifted his defenders to block each of three Union thrusts. Besides, he was unable to employ his large reserved forces to ensure success.

Answer:

3.6

Step-by-step explanation:

For the 20-deg angle, x is the opposite leg, and 10 cm is the adjacent leg. The trig ratio that relates the opposite leg to the adjacent leg is the tangent.

[tex] \tan A = \dfrac{opp}{adj} [/tex]

[tex] \tan 20^\circ = \dfrac{x}{10~cm} [/tex]

[tex] x = (10~cm)\tan 20^\circ [/tex]

[tex] x = 3.6~cm [/tex]

The side across angle 18 is the opposite side. The perpendicular angle that touches the same line is adjacent. To figure out the length of JL, we need to use the measurement 34.6 mm (hypotenuse). So in this equation we will use hypotenuse to find opposite. Hypotenuse and opposite result in Sin on the calculator. So on the calculator, you would find the Sin of 18 and then multiply that number by 34.6. The answer would then be 10.7 (rounded).

Answer: 10.7 mm (rounded)

Answer:

JL ≈ 10.7 mm

Step-by-step explanation:

Using the sine ratio in the right triangle

sin18° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{JL}{34.6}[/tex]

Multiply both sides by 34.6

34.6 × sin18° = JL, hence

JL ≈ 10.7 ( to 1 dec. place )

Answer:

G > 2

Step-by-step explanation:

Answer:

6+2g >10

6-6+2g>10-6

2g>4

divide by 2

2g/2> 4/2

g>2

Answer is g>2

Answer:

[tex]\frac{-2x-12}{x^2-16}[/tex]

Step-by-step explanation:

We want to find the difference;

[tex]\frac{x}{x^2-16}-\frac{3}{x-4}[/tex]

The first denominator can be rewritten as;

[tex]x^2-16=(x+4)(x-4)[/tex]

Therefore the least common denominator is [tex]x^2-16[/tex]

We collect LCD to obtain;

[tex]\frac{x-3(x+4)}{x^2-16}[/tex]

Expand the parenthesis to obtain;

[tex]\frac{x-3x-12}{x^2-16}[/tex]

[tex]\frac{-2x-12}{x^2-16}[/tex]

Answer:

b

Step-by-step explanation:

The only trinomial among the four expressions is x^6 −x+ √6 .

A trinomial is an algebraic expression with three terms, each containing a power of the variable raised to a non-negative integer and multiplied by a coefficient.

Let's analyze each expression:

x^3 + x^2 - √x: This has three terms (x^3, x^2, and -√x), but √x contains a fractional exponent, which is not allowed in a polynomial (and therefore, a trinomial). So, it's not a trinomial.

2x^3 - x^2: This has two terms (2x^3 and -x^2), not three. Therefore, it's not a trinomial.

4x^3 + x^2 - 1/x: This has three terms (4x^3, x^2, and -1/x), but 1/x is equivalent to x^-1, which is a negative exponent.

Similarly to option 1, this violates the non-negative integer exponent requirement for polynomials. So, it's not a trinomial.

x^6 - x + √6: This has three terms (x^6, -x, and √6). Note that √6 does not contain a variable and can be considered a constant, satisfying the polynomial and trinomial requirements. Therefore, this is a trinomial.

In, the only trinomial among the given options is: 4. x^6 - x + √6 .

The trinomial expression is C. [tex]\(4x^3 + x^2 - \frac{1}{x}\).[/tex]

A trinomial is an algebraic expression consisting of three terms. Let's examine each option:

a. [tex]\(x^3 + x^2 - \sqrt{x}\)[/tex] - This is a polynomial expression, but it only has two terms, so it's not a trinomial.

b. [tex]\(2x^3 - x^2\)[/tex] - This expression has two terms, so it's not a trinomial.

c. [tex]\(4x^3 + x^2 - \frac{1}{x}\)[/tex] - This expression has three terms, so it is a trinomial.

d. [tex]\(x^6 - x + \sqrt{6}\)[/tex] - This expression also has only three terms, so it is a trinomial.

So, the correct answer is:

C. [tex]\(4x^3 + x^2 - \frac{1}{x}\)[/tex]

Complete Question:
Which algebraic expression is a trinomial?

a. [tex]$x^3+x^2-\sqrt{x}$[/tex]

b. [tex]$2 x^3-x^2$[/tex]

c. [tex]$4 x^3+x^2-\frac{1}{x}$[/tex]

d. [tex]$x^6-x+\sqrt{6}$[/tex]

Answer:

If the number of miles is 6

Step-by-step explanation:

Since they vary with different rates ($/mile in our case), such equality can only be true for a specific amount of miles.  Less miles and the left part ($2.50...) would be higher, more miles and the right part ($1.00...) would be higher because it grows faster.

So, that's the number of miles for which the equation is true?

2.50 + 0.50m = 1.00 + 0.75m

Let's regroup similar terms:

1.50 = 0.25m

the isolate m

m = 6

So, if the ride covers 6 miles, the equation is true:

2.5 + 0.5 (6) = 1.00 + 0.75 (6)

2.5 + 3 = 1 + 4.50

5.5 = 5.5

Answer:

One cab charges an initial fee of $2.50 and then $0.50 for every mile. The other cab company charges an initial fee of $1.00 and then $0.75 for every mile.

Step-by-step explanation:

Answer:

- 1

Step-by-step explanation:

To evaluate substitute p = - 2 into f(p)

f(- 2) = (- 2)² + 3(- 2) + 1 = 4 - 6 + 1 = - 1

The answer should be -1

Answer:

[tex]35\ days[/tex]

Step-by-step explanation:

step 1

Find the area of the trapezoid (brownie pan)

[tex]A=\frac{1}{2}(29+41)20=700\ cm^{2}[/tex]

step 2

To find the number of days , divide the area of the brownie pan by 20 square centimeters of brownie

[tex]\frac{700}{20}=35\ days[/tex]

Answer:

B. Add the two equations.

Step-by-step explanation:

Lets solve our system of equations step-by-step

Step 1. Add the two equations

2x – 2y = 5 +

5x + 2y = 9

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

7x         = 14

Step 2. Solve for x in the resulting equation

7x = 14

[tex]x=\frac{14}{7}[/tex]

x = 2

Step 3. Replace the value of x in any of the original equations

2x – 2y = 5

2(2) – 2y = 5

4 – 2y = 5

-2y = 5 - 4

-2y = 1

[tex]y=-\frac{1}{2}[/tex]

We can conclude that the correct answer is: B. Add the two equations.

Answer:

the answer is C

Step-by-step explanation

type 2.08^5 and then times it to 14.08

Hello there! The answer is C.

So the equation is y = 14.08 ⋅ 2.08^x, where x stands for the number of years. You are finding the number of fish after five years, so place five in for x and solve.

y = 14.08 ⋅ 2.08^5 - Start by finding 2.08 to the 5th power. (I rounded off some decimal points since it was too long.)

y = 14.08 x 38.9329 - Next: multiply your two numbers.

y = 548.175232, or C since it is the closest whole number.

The income tax bracket fall into 28%.

Learn more about income tax here:

https://brainly.com/question/26316390

#SPJ2