Can someone help me please

Answer:

2√2 = x

Step-by-step explanation:

x

---- = sin 45 degrees, or

4

 x        1

----- = -----

 4       √2

this results in x = 4 / √2  =  4√2/2  =  2√2 = x

The value of the variable 'x' will be 2√2 units. Then the correct option is C.

It's a form of a triangle with one 90-degree angle that follows Pythagoras' theorem and can be solved using the trigonometry function.

The two triangular legs and their opposing angles are congruent in an isosceles triangle.

The triangle is an isosceles right-angle triangle. Then by the Pythagoras theorem, we have

4² = x² + x²

2x² = 16

x² = 8

x = 2√2

The value of the variable 'x' will be 2√2 units. Then the correct option is C.

More about the right-angle triangle link is given below.

https://brainly.com/question/3770177

#SPJ2

Answer:

28, 29, and 30

Step-by-step explanation:

There's probably better ways but you can estimate by knowing 30*3=90 so it should be somewhere pretty close to 30. Guess and check with basic calculations to get 28, 29, and 30.

Answer:

I think its C. I hope this helps.

Answer:

2 cups of clay

Step-by-step explanation:

Given data

we are given that  6 cups of water for every 12 cups of clay

  i.e

12 cups of clay require 6 cups of water

4 cups of clay will require x cups of water

cross multiply

12x= 4*6

12x= 24

divide both sides  by 12

x= 24/12

x= 2cups

Hence 4 cups of water will require 2 cups of clay

Answer:

$18

Step-by-step explanation:

Answer:

3.13333333333

Step-by-step explanation:

It is a recurring so u could write it as 3.13 with a dot on top of the last three hope it helps :D

Answer:

3rd one

Step-by-step explanation:

well it would make sense if you said that the longest fish is 12in longer than the shortest because if you took 21in (the longest fish) and subtracted 9 (the shortest fish) you would get 12.

hope that helped please give brainliest.

Answer:

306 [tex]ft^{2}[/tex]

Step-by-step explanation:

Formula for triangle: bh/2

2 (8*9/2) = 72

Formula for rectange: bh

8*9 = 72

2(9*9) = 162

Add: 72 + 72 + 162 = 306

Answer: 45

Step-by-step explanation:

Hello there!

So this problem looks a lot more complex than it really is. First, we need to know that a straight line is 180 degrees. Since both of these angles must add up to 180, we just subtract 135 from 180. We then get 45.

Hope this helped! :D

Sorry if any information was incorrect or if i didn’t understand what you were asking. Just comment and I will reply back ready to help!

Answer:

yes

Step-by-step explanation:

75 out of 135 is 55.6%

Answer:

x = 14°

Step-by-step explanation:

4x + 2x + 6 = 90

6x + 6 = 90

subtract 6 from both sides

6x = 84

divide by 6 on both sides

x = 14°

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

9514 1404 393

Answer:

  -30°

  or 330° or -150° or 210°

Step-by-step explanation:

The angle whose sine is 1/2 is 30°. Here, the sine is negative, indicating the angle is in the 3rd or 4th quadrants.

The angles in those quadrants with a reference angle of 30° are -30° or -150°. As positive angles, these are 330° or 210°, respectively.

Generally, the sin⁻¹ function (also called the arcsin function) is defined to have a range of -90° to +90°. Within that range, we can say ...

  sin⁻¹(-1/2) = -30°

_____

Additional comment

There are a few trig functions it is worthwhile to remember. These are shown in the attachment. The ordered pair points on the unit circle are (cos(θ), sin(θ)). If you remember the values of these in the first quadrant for 30°, 45°, and 60°, then you can work most of these "without a calculator" problems. (You also need to know how the signs change in the different quadrants.)

Answer:

210 degrees

Step-by-step explanation:

This is the 'arcsin' or 'inverse sine' function.  As written,

arcsin (-1/2) is requesting the angle (in degrees) whose sine is -1/2.

Note that because the sine function is defined as (opposite side)/hypotenuse, the following equation is true:

 -1            opposite

------  =  -------------------  =  sin x, where x is an angle in degrees.

  2         hypotenuse

If the sine is negative, that means that the angle x lies in either Quadrant III or Quadrant IV.  We see that the magnitude of the opposite side is HALF the magnitude of the hypotenuse.  

Cycling counterclockwise from the positive x axis, and continuing through Quadrant II into Quadrant III, we get a ray (hypotenuse) that is twice the length of the opposite side.  The angle of this ray as measured from the positive x-axis is 180 degrees plus 30 degrees, or  210 degrees.

You can check this by finding sin 210° on a calculator; the result is -1/2, which is what we were given up front.

Answer:

She financed $2500

Step-by-step explanation:

If you multiply $5000 by 50% you will be $2500. This would be the amount she financed. Hope this helps

Answer:

Amount of commission earned = $225

Step-by-step explanation:

Commission rate = 25%

Sales amount = $900

Find the amount of commission earned by the salesperson

Amount of commission earned = Commission rate × Sales amount

= 25% × $900

= 25/100 × $900

= 0.25 × $900

= $225

Amount of commission earned = $225

Answer:

The product of x(x + 1) is x² + x

Step-by-step explanation:

x(x + 1)

x × x + x × 1

x² + x

Thus, The product of x(x + 1) is x² + x

-TheUnknownScientist

Answer:

The volume of a rectangular prism can be calculated by the formula:

If the exercise give us the volume and the two other measurements (width and height), we must simplify the length from the formula showed (remember when a value is multiplying in a side to the equal sign, go to the other side to divide):

Or, in other form:

At last, the proccess change only a little if one is a fraction, in that case, you should just multiply or divide with that fraction.

Step-by-step explanation:

We're gonna take measurements for the volume, width and height to solve a hypothetical exercise:

We use the formula in the answer:

Replacing the data we obtain:

Now, we're gonna make the a hypothetical exercise where a measurement is a fraction, we can select anyone, in this case will be the width:

We use the same formula and replace again:

[tex]length=\frac{volume}{width*height}[/tex]

As you can see, the process does't change much using fractions, you must only know the correct form to operate these.

Answer: .41+.34=.75

Step-by-step explanation:

Answer:

13x + 14

Step-by-step explanation:

-3(x - 2) + 8(2x + 1)

= -3x + 6 + 16x + 8

= 13x + 14

Answer:

The expression cannot be factored

Step-by-step explanation:

got it correct

Answer:

(a) The expected value is: $0.40625

(b) The expected value is: $0.4286

Step-by-step explanation:

Solving (a): Raffle 1

Given

[tex]Tickets=800[/tex]

[tex]Value = \$2[/tex] per ticket

[tex]Grand\ Prize = \$450[/tex] ---- for 1

[tex]Consolation = \$100[/tex] --- for 2

Required

The expected value of each ticket

First, calculate the total amount of the 800 tickets

[tex]Amount = Tickets * Value[/tex]

[tex]A_1 = 800 * \$2[/tex]

[tex]A_1 = \$1600[/tex]

Next, calculate the total amount of the prizes

[tex]Amount = Tickets * Value[/tex]

[tex]A_2 = \$450 * 1 +\$100 * 2[/tex]

[tex]A_2 = \$450 +\$200[/tex]

[tex]A_2 = \$650[/tex]

The expected value E(x) of 1 ticket is calculated as:

[tex]E(x) = \frac{A_2}{A_1}[/tex]

[tex]E(x) = \frac{\$650}{\$1600}[/tex]

[tex]E(x) = \$0.40625[/tex]

Solving (b): Raffle 2

Given

[tex]Tickets=350[/tex]

[tex]Value = \$2[/tex] per ticket

[tex]Grand\ Prize = \$150[/tex] ---- for 1

[tex]Consolation = \$50[/tex] --- for 3

Required

The expected value of each ticket

First, calculate the total amount of the 800 tickets

[tex]Amount = Tickets * Value[/tex]

[tex]A_1 = 350 * \$2[/tex]

[tex]A_1 = \$700[/tex]

Next, calculate the total amount of the prizes

[tex]Amount = Tickets * Value[/tex]

[tex]A_2 = \$150 * 1 +\$50 * 3[/tex]

[tex]A_2 = \$150 +\$150[/tex]

[tex]A_2 = \$300[/tex]

The expected value E(x) of 1 ticket is calculated as:

[tex]E(x) = \frac{A_2}{A_1}[/tex]

[tex]E(x) = \frac{\$300}{\$700}[/tex]

[tex]E(x) = \$0.4286[/tex]

I think there is 72 students because there is 9 chaperones with groups of 8 so that is 9x8 which is 72

Hope this helps answer some questions that you may have had.

Answer:

supplementary

x = 146 degrees

Step-by-step explanation:

Answer:

supplementary

Step-by-step explanation:

Answer:

154 inchs

Step-by-step explanation:

22 * 14 divided by 2

Answer:

16 square miles

Step-by-step explanation:

Hope this helped <3

Answer:

180°

Step-by-step explanation:

According to Angle sum property of a triangle , sum of all the three angles of a triangle equals to 180°

The powers in this problem are expressed as follows:

1. 4^n x 4^5 = 4^(n + 5).

2. 3^8 x 3^n = 3^(8 + n).

3. 2^(2n)/2^n = 2^n

4. 2^(3n)/2^(2n) = 2^n

When two terms with the same base and different exponents are multiplied, we keep the base and add the exponents to find the product.

In the context of this problem, this is what we use for items 1 and 2, as follows:

1. 4^n x 4^5 = 4^(n + 5). -> Base 4, exponents n and 5, n + 5 = n + 5.

2. 3^8 x 3^n = 3^(8 + n). -> Base 3, exponents 8 and n, 8 + n = 8 + n.

When two terms with the same base and different exponents are divided, we keep the base and subtract the exponents to find the quotient.

In the context of this problem, this is what we use for items 3 and 4, as follows:

3. 2^(2n)/2^n = 2^n -> Base 2, exponents 2n and n, 2n - n = n.

4. 2^(3n)/2^(2n) = 2^n -> Base 2, exponents 3n and 2n, 3n - 2n = n.

More can be learned about exponential rules at https://brainly.com/question/11761858

#SPJ1

Answer:

6/18 or 3/9 they are the same!

Hope this helps! Brainliest thanks!