help ive been trying for hours and i keep getting it wrong. so i will give the person 20 points if you do it

Answer:

Step-by-step explanation:

You need to use trigonometry (SOHCAHTOA)

As from the focus angle -thetre- (65^o) you have the adjecent (x) and hypotenuse (the side opposite the right angle - 81.9m):

cos(θ) = adjacent/hypotenuse

cos (65) = x/81.9

as the opposite of dividing is mulitplying, you multiple both sides by 81.9

81.9*cos(65) = x

using calculator - in degree mode-

x = 34.6124

Thus it is the first choice, x = 34.61.

Answer:

The correct answer is first option

X = 34.61

Step-by-step explanation:

Points to remember

Trigonometric ratios

Sin θ  = Opposite side/Hypotenuse

Cos θ = Adjacent side/Hypotenuse

Tan θ = Opposite side/Adjacent side

From the figure we can see that a right angled triangle with base x and hypotenuse = 81.9.

One angle = 65°

To find the value of x

We have Cos θ = Adjacent side/Hypotenuse

Cos 65 = X/81.9

X = 81.9 * Cos 65

 = 81.9 * 0.4226  

 = 34.61

Therefore  X = 34.61

The correct answer is first option

Answer:

47.45 cm³

Step-by-step explanation:

Radius

= 10 ÷ 2π

= 5/π

Volume

= π(5/π)²(6)

= 150/π

= 47.45 cm³

Answer:

$64

Step-by-step explanation:

5 x 16 = $80

80% of $80 = $64

Final answer:

In an isosceles triangle with a perimeter of 22 cm and one side of 6 cm, the other two sides must be equal in length and must be 8 cm each to satisfy the perimeter condition.

Explanation:

The question asks for the possible lengths of the other two sides of an isosceles triangle with a perimeter of 22 cm, where one side is already known to be 6 cm. In an isosceles triangle, the two other sides must be of equal length because an isosceles triangle has two sides that are the same.

Let's denote the length of these two equal sides as 'x'. The perimeter of a triangle is the sum of the lengths of all three sides:

6 cm + x + x = 22 cm
2x + 6 cm = 22 cm
2x = 22 cm - 6 cm
2x = 16 cm
x = 8 cm

Therefore, the other two sides of the triangle must each be 8 cm long.

It's important to note that all three sides of a triangle must satisfy the triangle inequality theorem, which states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side. In this case, the other two sides cannot both be less than 6 cm, otherwise, they will not form a triangle with the third side of 6 cm. The solution provided meets this requirement.

It an example of above you could tell your teacher that the value of 5x6 is 30 or the value of x+y if x = 6 and y = 3 is 9 . Which refers to a variable or constant

The equation would be set up like this

100 = 6x + 28

25 times 4 (the constant of proportionality) is how you get 100

100-28 is 72 6x +28 - 28 is 6x

new equation, 72 = 6x

So then you'd divide 72 by 6 and get 12

x=12

Thats exactly what i wanted to answer

Answer:

AB - C² = 3x³ + x² + 6x - 9 ⇒ last answer

Step-by-step explanation:

* Lets study the problem to solve it

- The variables are:

# A = x²

# B = 3x + 2

# C = x - 3

* At first lets find AB

∵ A = x² and B = 3x + 2

∴ AB = x²(3x + 2)

∵ x² × 3x = 3x³ ⇒ same base so we added the power

∵ x² × 2 = 2x² ⇒ coefficient of x² is 1 multiplied by 2

∴ AB = 3x³ + 2x²

* At second find C²

∵ C = x - 3

∴ C² = (x - 3)²

- To solve bracket to the power of 2 use this rule:

# square the first term + 1st term × 2nd term × 2 + square the 2nd term

∴ (x - 3)² = (x²) + (x) (-3) (2) + (-3)² = x² - 6x + 9

∴ C² = x² - 6x + 9

* Now lets find AB - C²

∵ AB - C² = 3x³ + 2x² - (x² - 6x + 9) ⇒ multiply the bracket by -ve sign

∵ -ve × -ve = +ve

∵ -ve × +ve = -ve

∴ AB - C² = 3x³ + 2x² - x² + 6x - 9 ⇒ Add the like terms

∴ AB - C² = 3x³ + x² + 6x - 9

* AB - C² = 3x³ + x² + 6x - 9

Answer:

d for edge2020

Step-by-step explanation:

Divide the area with the length ( 9 feet long)

Area: 63/9

= 7 feet long

7*9=63 ft 2

Answer: 7 feet long

7 feet.

The area of a rectangle is equal to its length times its height.

In this case, the area can be represented by 63 = 9 * w.

Divide both sides of the equation by 9 to get 7 = w.

This means the width is 7 feet.

Answer is D

use the factor method to get the answer

x^2-36=0

x^2-6^2=0

(x-6)(x+6)=0

x=6 or -6

Answer:

Option A

Step-by-step explanation:

Suppose ∠I = 30° in ΔHIF,

∴ ∠F = 60°

Now consider the ΔGFH,

∠G = 90° and ∠F = 60°

∴ ∠GHF = 30°

Also in ΔGHI,

∠G = 90° and ∠I = 30°

∴∠GHI = 60°

∴ ΔGFH ≈ ΔGIH ≈ ΔHIF

Answer:

a

Step-by-step explanation:

Answer:

The ratio of the volume of the scale model to the volume of the building is [tex]\frac{1}{941,192}[/tex]

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its volumes is equal to the scale factor elevated to the cube, and the ratio of its corresponding sides is equal to the scale factor

so

Let

z-----> the scale factor

x----> the volume of the scale

y----> the volume of the building

[tex]z^{3}=\frac{x}{y}[/tex]

In this problem we have

[tex]z=\frac{1}{98}[/tex]

substitute

[tex](\frac{1}{98})^{3}=\frac{x}{y}[/tex]

[tex](\frac{1}{941,192})=\frac{x}{y}[/tex]

rewrite

[tex]\frac{x}{y}=\frac{1}{941,192}[/tex]

Answer:

There is 1 possible combination

Step-by-step explanation:

There are 5 assignments and they must be completed. 5. We want to find the number of combinations, then we use the formula of combinations.

[tex]nCr =\frac{n!}{r!(n-r)!}[/tex]

Where n is the total number of objects and you choose r from them

Then

[tex]n= 5\\\\r = 5[/tex]

[tex]5C5 =\frac{5!}{5!(5-5)!}[/tex]

[tex]5C5 =\frac{5!}{5!(0)!}[/tex]

[tex]5C5 =\frac{5!}{5!}[/tex]

[tex]5C5 =1[/tex]

Answer:

the answer is B {(0,-4),(2,6)(,4,16)

happy to help

Answer:

B {(0,-4),(2,6)(,4,16)

Step-by-step explanation:

Final answer:

To find the product of the binomials (x + ut)(9x - 8ut), we use the FOIL method and combine like terms, resulting in the expression 9x² + uxt - 8u²t².

Explanation:

To find the product of the binomials (x + ut)(9x - 8ut), we will use the distributive property (also known as the FOIL method in this case), which involves multiplying each term in the first binomial by each term in the second binomial:

Combining like terms, the final product is:

9x² + 9uxt - 8uxt - 8u²t²

Since 9uxt and -8uxt are like terms, we can simplify further:

9x² + uxt - 8u²t²

Answer:

∠1 = 23°

Step-by-step explanation:

∠WXZ = ∠WXY + ∠YXZ

Note that ∠2 = 4∠1 ( angle 2 is 4 times angle 1 )

Hence

4∠1 + ∠1 = 115

5∠1 = 115 ( divide both sides by 5 )

∠1 = 23°

Answer: 16,503,616 leagues²

Step-by-step explanation:

Assume that the Earth is a sphere. Then, you need to use the formula for calculate the surface area of a sphere:

[tex]SA=4\pi r^2[/tex]

Where r is the radius.

Divide the diameter by 2 to calculate the radius of the Earth:

[tex]r=\frac{2,292\ leagues}{2}\\r=1,146\ leagues[/tex]

Substituting values into the formula  [tex]SA=4\pi r^2[/tex], you get that the total surface of the Earth to the nearest whole number is:

 [tex]SA=4\pi (1,146\ leagues)^2=16,503,616\ leagues^2[/tex]

The correct answer is that the total surface area of Earth is approximately 510 million square kilometers.

To calculate the total surface area of Earth, we can use the formula for the surface area of a sphere, which is [tex]\( A = 4\pi r^2 \)[/tex], where r is the radius of the sphere. Since the diameter of Earth is given as 2292 leagues, we first need to convert leagues to kilometers. Historically, one league was approximately 5.556 kilometers.

 Using this conversion, the radius of Earth in kilometers is:

[tex]\[ r = \frac{2292 \text{ leagues} \times 5.556 \text{ km/league}}{2} \] \[ r = \frac{2292 \times 5.556}{2} \] \[ r = 1146 \times 5.556 \] \[ r \approx 6337.536 \text{ km} \][/tex]

Now, we can calculate the surface area using the radius:

[tex]\[ A = 4\pi r^2 \] \[ A = 4\pi (6337.536 \text{ km})^2 \] \[ A = 4\pi (404,089,630.24 \text{ km}^2) \] \[ A \approx 4\pi (4.04 \times 10^9 \text{ km}^2) \] \[ A \approx 4 \times 3.14159 \times 4.04 \times 10^9 \text{ km}^2 \] \[ A \approx 50.26548 \times 10^9 \text{ km}^2 \] \[ A \approx 5.026548 \times 10^{10} \text{ km}^2 \][/tex]

Rounding to the nearest whole number, the total surface area of Earth is approximately 510 million square kilometers.

Answer:40

Divide 120 by 3

so lets simplify this equation to do it mentally

turn 120=12

now  12÷ 3=4

the zero from 120 will be added to 4

because of the tens place it becomes 40

hope this helps! if so please leave a brainliest.

Step-by-step explanation: (for #1)

Area of a square= lw

A = 2 x 2

A = 4

Area of a triangle= 1/2bh

A = 1/2 1 x 2

A = 1

4 + 1 = 5in.

Step-by-step explanation: (for #2)

A = lw

A = 3 x 2

A = 6

Area = lw

A = lw

A = 1 x 1

A = 1

6 + 1 = 7cm

Answer:

The purpose of the the bar diagram is to show the difference between the heights of female and male giraffes, in other words, the bar diagram needs to be able to show how much one value is more or less than the other value.

The height of the males can reach 5.5 meters, and the females' height will only reach 4.3 meters, therefore, we can see that the height of the males are larger than the height of the females, so the equation to find the difference in the heights should be: 5.5 - d = 4.3 (or any other way around).

From that, we know that the height of the males is d meters more than the height of females or the height of the females is d meters less than the height of the males.

*hope this help you

Answer:

The numbers are in the wrong places in the diagram. 5.5m should be in the top bar diagram and 4.3 in the bottom. One equation could be 4.3 + d = 5.5.

Step-by-step explanation:

Sample response from Edgunity! Hope this helps, good luck on your assignment :)

Answer:

2n² + n + 1

Step-by-step explanation:

                               4, 11, 22, 37

Difference between:  7, 11, 15

7,11,15 are all 4 apart. You divide the 4 by 2 to get 2n² (it is squared because you needed a second level to find the difference)

And then I knew you needed to put the original 2n² with the sequence we are trying to work out.

                                                                 2, 8, 18, 32

                                                                 4, 11, 22, 37

difference between the 2 sequences   2, 3 ,4 ,5 (which all has a difference of 1)  which means 1n or just  n.

So that's 2n² + n

I

The sequence is quadratic as the second difference is constant. The nth term expression can be established as 2n² for which the coefficient 2 is half of the second difference. Further, by matching the sequence to the nth term, we adjust the expression to 2n² + n + 1.

A key step to finding an expression for the nth term of this sequence is finding the difference between consecutive terms. For this particular sequence, you can see that the difference isn’t constant, thus, it's a quadratic sequence. However, if the second difference is constant, the nth term of the sequence is a quadratic:

The first differences are: 7(11-4), 11(22-11), 15(37-22), 19(56-37).

The second differences are 4(11-7), 4(15-11), 4(19-15).

Since the second difference is constant and equals to 4. We divide this by 2 to get 2. This is the coefficient of the n² term in our sequence. Thus, the first part of the nth term is 2n².

The next step is to write out the sequence of 2n², subtract this sequence from the original sequence, and identify the differences:

The difference above is clearly linear (increases by 1 each time) and thus the format for nth term has improved from 2n² to 2n²+n. So far this match has worked for the first 5 terms, but we need to look at the nth term to see if it works:

Original sequence: 4, 11, 22, 37, 56

Sequence of 2n²+n: 3, 10, 21, 36, 55

To match the original sequence, add 1 to each term in our sequence. The nth term is therefore 2n² + n + 1.

https://brainly.com/question/35548247

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Answer:

B. 0.56.

Step-by-step explanation:

That would be the number of sophomore / total number of people

= 77 / 137

= 0.56.

The probability that the randomly chosen person from this group is a sophomore is B. 0.56.

Probability is simply the possibility of getting an event. Or in other words, we are predicting the chance of getting an event.

The value of probability will be always in the range from 0 to 1.

Given that,

Total number of people attended in the school event = 137

Number of sophomores in the group = 77

To find the probability, we have to divide the number of desired outcomes by the total number of outcomes.

Here total number of outcomes is 137 and the number of sophomores is 77.

Probability = 77 / 137 = 0.562 ≈ 0.56

Hence the probability is 0.56.

Learn more about Probability here :

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Answer:

5[tex]\sqrt{2}[/tex]

Step-by-step explanation:

The triangle has 2 equal legs, name them x so

Using Pythagoras' identity

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

x² + x² = 10²

2x² = 100 ( divide both sides by 2 )

x² = 50 ( take the square root of both sides )

x = [tex]\sqrt{50}[/tex] = [tex]\sqrt{25(2)}[/tex] = 5[tex]\sqrt{2}[/tex]

Answer:

A portion of a line which starts at a point and goes off in a particular direction to infinity.

The best way to describe a ray.

A ray is known as a half-infinity line. As it starts from a point while the other end is pointing towards the direction till infinity.

As already discussed ray shows a direction as well, therefore, it is a vector quantity and is denoted by an arrow over the line name.

As shown below a ray can be drawn. therefore, [tex]\bold{\underset{AB}{\rightarrow}}[/tex] which is starting from point A and continuing toward the right side infinity.

Learn more about ray:

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Answer:

14

Step-by-step explanation:

Multiply the exponents together

Answer:

im so handsome

Step-by-step explanation:

jesus created me

Answer:

The answer is w= -4.

-2+-4=-6

<3 Please mark as brainliest! Thx :)

Step-by-step explanation:

Answer:

8 billetes de 20

17 billetes de 10  

Step-by-step explanation:

Answer:

17 $10s y 8 $20s

Step-by-step explanation:

Answer:

Changing value of "c" changes the phase shift of the sine graph.

Step-by-step explanation:

Question says to find about how does the c value affect your sine graph.

General equation of sine function can be given as:

[tex]y=a\cdot\sin\left(bx-c)\right)+d[/tex]

In that formula, value of  "c/b" gives phase shift.

So changing value of "c" changes the phase shift of the sine graph.

Answer:

y = 3z - 2x

Step-by-step explanation:

Systems of equations can be solved by a number of know techniques, such as substitution, elimination or graphical approach.

We are required to solve the system of equations given via substitution;

2x + y = 3z

x + y = 6z

The question requires us to determine the value for y from the first equation, that could be substituted into the second equation.

We simply need to make y the subject of the formula from the first equation;

2x + y = 3z

To do this we subtract 2x on both sides of the equation;

2x + y -2x = 3z - 2x

y = 3z - 2x

This is the value of y from the first equation, that can be substituted into the second equation.

that is, the length down the middle of the melon is 18.

[tex]\bf \textit{circumference of a circle}\\\\ C=2\pi r~~ \begin{cases} r=radius\\ \cline{1-1} C=18 \end{cases}\implies 18=2\pi r\implies \cfrac{18}{2\pi }=r\implies \cfrac{9}{\pi }=\boxed{r} \\\\[-0.35em] ~\dotfill[/tex]

[tex]\bf \textit{surface area of an sphere}\\\\ A=4\pi r^2~~ \begin{cases} r=radius\\ \cline{1-1} \boxed{r}=\frac{9}{\pi } \end{cases}\implies A=4\pi \left( \cfrac{9}{\pi } \right)^2\implies A=4\pi \cdot \cfrac{81}{\pi ^2} \\\\\\ A=4\cdot \cfrac{81}{\pi }\implies A=\cfrac{324}{\pi }\implies A\approx 103.13\implies \stackrel{\textit{rounded up}}{A=103}[/tex]

Answer:

x = - 4, x = 0, x = 1

Step-by-step explanation:

To find the zeros equate p(x) to zero, that is

3x³ + 9x² - 12x = 0 ← divide through by 3

x³ + 3x² - 4x = 0 ← factor out x from each term

x(x² + 3x - 4) = 0

x(x + 4)(x - 1) = 0 ← in factored form

Equate each factor to zero and solve for x

x = 0

x + 4 = 0 ⇒ x = - 4

x - 1 = 0 ⇒ x = 1