Find the measure of the reference angle for each angle. Part 3
16. θ = -15°
17. θ = 220°

Answer:

ethanol

Step-by-step explanation:

The enthalpy of combustion is the amount of heat produced when one mole of ethanol undergoes complete combustion at 25 ° C and 1 atmosphere pressure, yielding products also at 25 ° C and 1 atm.

The enthalpy of combustion of the unknown compound is

ΔH = - 320 kJ / 0.25 mol = - 1280 kJ / mol

To choose a probable compound according to this combustion enthalpy, we must evaluate the deviation in relation to the values reported in the literature for the three probable compounds (methane, ethylene and ethanol). The deviation (e%) will be calculated according to the following equation,

e% =  ( | ΔHx - ΔH | / ΔHx ) x 100%

where ΔHx is the enthalpy of combustion of the probable compound.

The following table shows the combustion enthalpies of the probable compounds and their deviation in relation to the enthalpy of ΔH = - 1280 kJ / mol

Compound Enthalpy of combustion (kJ/mol)   Deviation

Methane                        - 890.7                                 43.8%

Ehylene                         -1411.2                                   9.3%

Ethanol                        -1368.6                                    6.5%

According to the previous table, we can say that the most probable compound is ethanol, since it has the smallest deviation in relation to the experimental enthalpy value of combustion.

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Answer: ethanol

Step-by-step explanation:

Got it right on edge

Answer:

(0,3)

Step-by-step explanation:

When X=0, Y=3

Answer:  it lies between 2 and 3.

Step-by-step explanation:

You equation should be like this because what you wrote is not an equation.

15/6= p  where P is the number of pounds  each student received.

p=2.5

Answer:

See Explanation

Step-by-step explanation:

The question is incomplete as the dimensions of tubs used by theatre A and B is missing.

However, I'll solve the question as follows.

First, it should be noted that the tub with highest volume gives the best deal.

This is so because both pop corns go for the same price of $5 and the tub with the highest volume contains more popcorn.

The volume of a rectangular prism is calculated by

Volume = Length * Breadth * Height

Take for instance, the dimension of tub A is length = 4cm, breadth = 5cm and height = 6cm

And the dimension of tub B is length = 3cm, breadth = 7cm and height = 5cm

The volume of tub A (theatre A) = 4cm * 5cm * 6cm

Volume = 120cm³

The volume of tub B (theatre B) = 3cm * 7cm * 5cm

Volume = 105cm³

Because the volume of tub A is greater than that of tube B, then tube A offers the best deal

If you apply this steps in your question, you'll arrive at the right answer.

Answer:

x = [tex]\sqrt{120}[/tex] ≈ 10.95

Step-by-step explanation:

Use Pythagorean Theorem a²+b²=c²

6²-4²=a²

36-16=a²

a²=20

a=[tex]\sqrt{20}[/tex]

[tex]\sqrt{20[/tex]²+10²=c²

20+100=c²

c²=120

c= [tex]\sqrt{120}[/tex] ≈ 10.95

Answer:

1/5

Step-by-step explanation:

8 beech trees out of 40

8/40 = 1/5

Answer:

The formula to find a circle's area π (radius)2 usually expressed as π⋅r2 where r is the radius of a circle. The area of a circle is all the space inside a circle's circumference.

Step-by-step explanation:

Answer: 6.25

Step-by-step explanation:

I took the quiz on Khan Academy and it’s right.

Answer:

2 m/s=90 meters/45 seconds

Answer:

When two lines intersect they form two pairs of opposite angles, A + C and B + D. Another word for opposite angles are vertical angles. Vertical angles are always congruent, which means that they are equal. ... Two angles are said to be complementary when the sum of the two angles is 90°.

Step-by-step explanation:

Answer:

A+G

Step-by-step explanation:

:D

Answer:

9.8 Inch

Step-by-step explanation:

The distance from the upper left corner to the bottom right corner of the box is the longest diagonal of the box.

For a rectangular prism:

Length of the Longest diagonal [tex]=\sqrt{ l^2+h^2+w^2}[/tex]

Therefore:

Length of the pencil[tex]=\sqrt{ 8^2+4^2+4^2}[/tex]

[tex]=\sqrt{96}\\=9.8$ inch(correct to the nearest tenth of an inch)[/tex]

Answer: length of pencil is 9.8 inches.

Step-by-step explanation:

The pencil fits perfectly from the upper left corner to the bottom right corner of the box. This is the diagonal of the box(not the diagonal of a face). To determine the length of the pencil, we would determine the length of the diagonal of the box. The formula formula is

d = √(l² + w² + h²)

Where

d = diagonal = length of pencil

w = width = 4 inches

h = height = 4 inches

l = length = 8 inches

Therefore,

d = √(4² + 4² + 8²) = √96

d = 9.8 inches

Answer:

Um, i'm not the best but I'm trying my best, but I think it is                                       66%

Step-by-step explanation:

Hope this helps

Equality Properties

Circumference Formula(s):
[tex]\displaystyle\begin{aligned}C & = 2 \pi r \\& = \pi d\end{aligned}[/tex]

where d is the diameter and r is the radius.

Let's organize what is given to us in the problem.

We are given that we are riding a Ferris wheel and have traveled 157 feet.

Let's find the radius of the Ferris wheel, which can be geometrically described as a circle. We use the Circumference Formula found above:

∴ the radius of the Ferris wheel is equal to 25 feet.

*Note: A similar question is found here w/ two different answers - https://brainly.com/question/8607274

The radius of the Ferris wheel is equal to 25 feet. The diameter of the Ferris wheel is equal to 50 feet. Recall that diameter is 2x the radius.

___

Learn more about circles: https://brainly.com/question/15306477

Learn more about Geometry: https://brainly.com/question/23669892

___

Topic: Geometry

Unit: Circles

Answer:

50 feet

Step-by-step explanation:

trust

Answer:

(-2,11) (1,-1) (5,-17)

Step-by-step explanation:

the range of this relation is 11,-1,-17

Answer:

You need 4 cups.

Step-by-step explanation:

If you have 1 cup of tomatoes, and you need 4 times the amount of lettuce, you multiply 1 times 4. Giving you 4 cups of lettuce.

Answer:

no solutions

Step-by-step explanation:

(X-2)^2/3 + 13 = 5

Subtract 13 from each side

(X-2)^2/3 + 13-13 = 5-13

(x-2) ^2/3 = -8

Raise each to the 3/2 power

(x-2) ^2/3  ^3/2= -8^3/2

(x-2) = (-512) ^1/2

We cannot take the square root of a negative number and remain in the real number system

There are no solutions

Answer:

No real solutions

Imaginary/complex solutions:

x = 2 +/- 16sqrt(2)i

Step-by-step explanation:

(X-2)^2/3 + 13 = 5

(X-2)^2/3 = -8

(X - 2)² = (-8)³

X - 2 = +/- sqrt(-512)

No real solution

x = 2 +/- 16sqrt(2)i

(2 +/- 16sqrt(2)i - 2)^⅔ + 13 = 5

[(+/- 16sqrt(2)i)²]^⅓ + 13 = 5

(-512)^⅓ + 13 = 5

-8 + 13 = 5

5 = 5

Answer: it's around 40

Step-by-step explanation:

Answer:

35

Step-by-step explanation:

11 × 3 = 33

+ 2 = 35

Robin is 11 (11)

Gwen is 2 years (+2) more than 3 times (×3) Robins age

Answer:

35.

Step-by-step explanation:

Hello there!

Solve the given equation to find Gwen's age:

3(11)+2

33+2

35

:)

Answer:

Actually the answer would be 120.

4.16×48=200

3/5×200=120.

120 people out of five play.

Answer: 24 units^2

(12*4)/(2)=24

Step-by-step explanation:

Answer:

Step-by-step explanation:

4*12/0.5=96

Answer:

Please provide an image of what you are talking about. That way we can help you more

Answer:

the answer is 8 units

of the cube shown

Answer:

I believe C is the correct answer because the graph starts above 40 on y axis and D is incorrect because of the y + not y=

Answer:

I think it is C) The line will contain points whose y-coordinate will decrease in value as you move to the right

Step-by-step explanation:

HOPE THIS HELPS

Answer:

the perimeter is 32 squares

Step-by-step explanation:

Complete Question:

Samuel received $250 as prize money for winning the St. Peterson High School Badminton Tournament. The money was deposited in a special scholarship account that offered an annual interest of 1.8% compounded semiannually. The amount he will have in the account after t years can be calculated using the expression below.

250(1+0.018/2)^2t

Use the given expression to complete the statements below.

The expression is the *blank* of the amount initially deposited and the *blank* of one and the rate of increase raised to the number of *blank*

1st Blank:

Product

Sum

Quotient

Square

2nd Blank:

Quotient

Product

Difference

Sum

3rd Blank:

Compounding Periods

Years

Months

Answer:

First blank: product

Second blank : Sum

Third blank : years

Step-by-step explanation:

The expression :

250(1+0.018/2)^2t

The expression is the *blank* of the amount initially deposited and the *blank* of one and the rate of increase raised to the number of *blank*

The first blank represents product which adopts the use of the bracket () symbol

The second blank is the sum of one and the rate of increase depicted with the addition '+' sign

The third blank represents years which is the period of time in years for which the money was kept in the scholarship account

Answer:

2450

Step-by-step explanation:

First you will divide;

200÷4=50

Then you multiply;

50×9=450

Last you add;

2000+450=2450

Hope this helps :D

Answer:

4949 is your answer

Step-by-step explanation:

Corrected Question

Create a circle with center A and a radius of your choice. Create a point B on the circle, and find the coordinates of B. Draw the radius AB. What is the slope-intercept form (y = mx + b) of the equation of AB? Show your work.

Answer:

y=0.62x+2

Step-by-step explanation:

In the attached circle drawn using Geogebra

Gradient of AB, [tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex] where [tex](x_1,y_1)=A(0,2)$ and (x_2,y_2)=B(1.7,3.05)[/tex]

[tex]m=\dfrac{3.05-2}{1.7-0} \\=\dfrac{1.05}{1.7}\\\\\approx 0.62[/tex]

Line AB intercepts the y-axis at y=2, therefore: b=2

The slope-intercept form of the line AB (in this case) is therefore:

y=0.62x+2

For every circle center A of radius r and point B chosen on the circumference, the equation of the line AB will be different.

You can try one of your own!!

Answer:

the answer is b

Step-by-step explanation:

Answer:

B on edgen 2020

Step-by-step explanation:

Answer:

2x^2 +5x

Step-by-step explanation:

3x^2 - 4x + 9x - x^2

Combine like terms

3x^2 -x^2   -4x+9x

2x^2 +5x

Answer:

Just combine like terms:

2x^2+5x