n triangle ABC, m∠A = 35° and m∠B = 40°, and a=9. Which equation should you solve to find b?

Answers

Answer 1

Answer:

[tex]\frac{sin B}{b} = \frac{sin A}{a}[/tex] should be used to find b.

Step-by-step explanation:

We are given that in a triangle ABC, ∠A = 35°, ∠B = 40° and side a = 9 and we are to find the side length b.

Now using sine rule to find b:

[tex]\frac{sin B}{b} = \frac{sin A}{a}[/tex]

[tex]\frac{sin 40}{b} = \frac{sin 35}{9}[/tex]

[tex]b=\frac{sin 40 \times 9}{sin 35}[/tex]

b = 10.1

Answer 2

Answer:

The equation is 9/sin(35) = b/sin(40) , The length of b = 10.086

Step-by-step explanation:

* Lets explain how to solve the triangle

- In ΔABC

- a, b, c are the lengths of its 3 sides, where

# a is opposite to angle A

# b is opposite to angle B

# c is opposite to angle C

- m∠A = 35°  

- m∠B = 40°  

- a = 9  ⇒ the side opposite to angle A

* To solve the triangle we can use the sin Rule

- In any triangle the ratio between the length of each side  

 to the measure of each opposite angle are equal

- a/sinA = b/sinB = c/sinC

∴ The equation which used to find b is a/sinA = b/sinB  

∵ a = 9 , m∠A = 35° , m∠B = 40°

9/sin(35) = b/sin(40) ⇒ by using cross multiplication

∴ b = 9 × sin(40) ÷ sin(35) = 10.086

* The length of b = 10.086


Related Questions

Solve the equation below: (X+4)/6x=1/x

A. X=2
B. X=0,2
C. X=-2
D. X=0,-2

Answers

For this case we must solve the following equation:

[tex]\frac {x + 4} {6x} = \frac {1} {x}[/tex]

We multiply by "6x" on both sides of the equation:

[tex]x + 4 = \frac {6x} {x}\\x + 4 = 6[/tex]

Subtracting 4 on both sides of the equation:

[tex]x = 6-4\\x = 2[/tex]

Thus, the result of the equation is 2.

Answer:

[tex]x = 2[/tex]

Option A

Answer:

A

Step-by-step explanation:

What is the volume of the cone with diameter 4 ft and height 4 ft? Round to the nearest cubic foot.

Answers

Answer:

V = 67.0206 m3

Step-by-step explanation:

Answer: [tex]17ft^3[/tex]

Step-by-step explanation:

The volume of a cone can be calculated with the following formula:

[tex]V_{(cone)}=\frac{1}{3}\pi r^2h[/tex]

Where "r" is the radius and "h" is the height.

The radius is half the diameter, then "r" is:

[tex]r=\frac{4ft}{2}\\\\r=2ft[/tex]

Since we know that radius and the height, we can substitute them into the formula.

The volume of the cone  to the nearest cubic foot is:

 [tex]V_{(cone)}=\frac{1}{3}\pi (2ft)^2(4ft)[/tex]

 [tex]V_{(cone)}=17ft^3[/tex]

PLEASEEEE HELPPPPP MEEEEE 10 POINTS!!!!

Answers

Distributive property means you multiply the number on the outside the parentheses (in this case it is 7) with every number/variable inside the parentheses ( in this case it would be 5 and -4) so...

7*(5 - 4) = (7 * 5) - (7 * 4)

Further evaluated you would get...

35 - 28

7

Hope this helped!

~Just a girl in love with Shawn Mendes

simplify -12x^4/x^4+8x^5 brainly
What is x

Answers

Answer:

-12+8x^5

bkhlvyuiv,ibk

ANSWER

[tex]\frac{ - 12}{1 + 8x} [/tex]

EXPLANATION

The given rational expression is

[tex] \frac{ - 12 {x}^{4} }{ {x}^{4} + 8 {x}^{5} } [/tex]

We factor to get;

[tex]\frac{ - 12 {x}^{4} }{ {x}^{4} (1+ 8 {x}) } [/tex]

We can see that:

[tex] {x}^{4} [/tex]

is common to both the numerator and the denominator.

We cancel out the common factors to obtain;

[tex]\frac{ - 12 }{ 1+ 8 {x}} [/tex]

Therefore the simplified form is

[tex] \frac{ - 12}{1 + 8x} [/tex]

What is the slope of OG?

Answers

Answer:

-5/1

Step-by-step explanation:

Answer: Second option.

Step-by-step explanation:

You can calculate  the slope of the line with the following formula:

[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

You know the point G(1,-5) and  the point O(0,0), then, you can identify that:

[tex]y_2=-5\\y_1=0\\x_2=1\\x_1=0[/tex]

Now you need to substitute these values into the formula  [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex], then the slope of OG is:

 [tex]m=\frac{-5-0}{1-0}\\\\m=\frac{-5}{1}\\\\m=-5[/tex]

This matches with the second option.

Based only on the given information, it is guaranteed that PS=RS



PLS HELP ASAP

Answers

Answer: True :)

Step-by-step explanation:

The difference between one-half of a number and one-sixth of the number is equal to ten more than one-eighth of that number.

Which equation could be used to find the number?

1/2n - 1/6 = 10 + 1/8n
1/2 - 1/6n = 10 + 1/8n
1/2n - 1/6n = 10 + 1/8n

Answers

The answer would be...

1/2n - 1/6n = 10 + 1/8n

^^^That would be the last one

Hope this helped!

~Just a girl in love with Shawn Mendes

Answer:

Step-by-step explanation:

Let the number = x

(1/2) x - (1/6) x = (1/8)x + 10

It's the third one down. The other two are wrong because the number is not represented in both terms on the left. The questions says 1/2 of the number

and 1/6 of the number.   Both require an x.

There are four accent walls that need to be painted: cafeteria, gym, auditorium, and entrance. The art class is going to paint either a forest or an ocean nature scene on one of them. What is the probability that the ocean scene is painted in the gym?

Answers

the probability of an ocean scene going on the gym wall is 16%

Answer:

12.5%

Step-by-step explanation:

There are 4 walls to choose from, and 2 scenes to choose from. So the number of combinations is 2×4=8. One of those is the ocean scene on the gym wall. So the probability is:

P = 1/8

P = 12.5%




Two roots of a 3-degree polynomial equation are 5 and -5. Which of the following cannot be the third root of the equation?

5

5i

0

-5

-5i

Answers

Your answer would be 0. Then it would be a 2-degree.

Answer:

5i, -5i

Step-by-step explanation:

None 5i nor -5i could be a third root of the polynomial because if we had a complex root then by the complex conjugate root theorem, their conjugate would be a fourth root, while the polynomial which is a 3-degree polynomial can only have three roots according to the Fundamental Theorem of Algebra, which states that the number of roots of the polynomial is equal to the degree of the polynomial.

In other words, for example, if the third root was 5i then its conjugate -5i should be another root according to the complex conjugate root theorem; so we would end with four roots when we are only allowed -by the Fundamental Theorem of Algebra- to have three roots since it is a 3-degree polynomial.  The same reasoning applies for -5i whose conjugate is precisely 5i.

The other numbers are real numbers, so any of them can be a third root. Notice that it does not matter if the third root is again 5 or -5 since the real roots can be repeated (multiplicity greater than 1).

PLEASE HELP WILL GIVE BRAINLIIEST 20 POINTS 6TH GRADE ASAP PLEASE


Which of the sets of ordered pairs represents a function?

A = {(–5, 5), (–2, 2), (2, –2), (5, –5)}

B = {(4, 2), (3, –2), (9, 4), (11, –3)} (4 points)


Only A

Only B

Both A and B

Neither A nor B

Answers

Answer:

Both A and B

Step-by-step explanation:

For functions you are just trying to make sure all the x's are different.  

So let's look at A:  The x's there are all different so it is a function

Now let's look at B: The x's there are all different so it is a function.

Both A and B

PLEASE ANSWER MY QUESTION I AM OFFERING 60 POINTS AND I REALLY NEED THE ANSWER
If you transform y = 2x^2 into y = 10x^2, which option below describes the effect of this transformation on the graph of the quadratic function along the y-axis?

A) The transformation stretches the graph by a factor of 5.

B) The transformation stretches the graph by a factor of 25.

C) The transformation shrinks the graph by a factor of 5.

D) The transformation shrinks the graph by a factor of 25.

Answers

The correct answer is a

Answer:

answer is a

Step-by-step explanation:

the set of ordered pairs represented by the graph below can be described as which of the following

a relation only

a function only

both a relation and function

neither a relation or function

Answers

ANSWER

a relation only

EXPLANATION

The given graph shown in the attachment represents only a relation and not a function.

The reason is that, a vertical line drawn across this graph will intersect this graph at more than one point.

Since the graph fails to pass the vertical line test, the ordered pair represented by this graph represents a relation only.

Answer: First option.

Step-by-step explanation:

By definition, a relation is a function if each input value (value of "x") has only one output value (value of "y").

 In the figure you can observe that each x-coordinate has more than one y-coordinate. Then, since each input value (value of "x") does not have only one output value (value of "y"), you can say that it is not a function, but a relation only.

Therefore, the conclusion is:

The set of ordered pairs represented by the graph, can be described  as a relation only.

What is the domain of the function shown

Answers

It would be choice b.
The domain is the range of x values which in this case is from -5 to 3.

Answer:

○ b -5 ≤ x ≤ 3

Explanation:

The set of x-values is called the domain. Also, according to the graph, this range out to from negative five [left] to three [right].

I am joyous to assist you anytime.

Which best describes the dimensions of a line?

Answers

Final answer:

A line can be described as a one-dimensional element with length greater than its width. It is formed by connecting two or more points and can be used to create shapes, define forms, and indicate motion.

Explanation:

A line can be described as a point in motion. It is the simplest visual element and is characterized by its length being greater than its width. When two or more points are connected, a line is formed. For example, when you draw a line segment connecting two points on a paper, you create a line. Lines can be used to create shapes, define forms, and indicate motion. It is important to note that a line is one-dimensional and has no width or depth.

Which point on the x-axis lies on the line that passes
through point C and is parallel to lino AB?

Answers

Answer:

(2,0)

Step-by-step explanation:

For given line AB:

y-intercept = b = -2

slope = m = y₂-y₁/x₂-x₁

= -3/2-(-4) = -3/6 = -1/2

Equation of line AB:

y = (-1/2)x - 2

Finding equation of line that is parallel to line AB and passes through the point C(2,2):

Substituting the slope from line AB into the equation of the line

y = (-1/2)x + b.

Substituting the given point (-2,2) into the x and y values 2 = (-1/2)-2 + b.

Solving for b (the y-intercept) , we get b = 1

Substitute this value for 'b' in the slope intercept form equation y = (-1/2)x + 1.

For x-intercept of the line, we let y = 0

0 = (-1/2)x + 1

x = -1(-2/1)

x = +2

So, the point on the x-axis that lies on the line that passes

through point C and is parallel to line AB is (2,0).

Solve 3x − 8 = 8 for x using the change of base formula log base b of y equals log y over log b.

Answers

Answer:

3^x-8=8 then x=log_3(16)

3^(x-8)=8 then log_3(8)+8

Step-by-step explanation:

So if it is 3^x-8=8

then 3^x=16

and then convert to logarithmic form you write it as log_3(16)=x

_3 means the subscript (the base) is 3

So if it is 3^(x-8)=8

then the log form is log_3(8)=x-8

add 8 on both sides log_3(8)+8=x

The value of x that satisfies the given equation is 9.8929

Logarithmic equation

From the question, we are to solve [tex]3^{x-8} =8[/tex] for x, using the change of base formula [tex]\log _{b} y = \frac{log _{} y}{log _{} b}[/tex]

From the given equation,

[tex]3^{x-8} =8[/tex]

Take [tex]log_3[/tex] of both sides,

That is,

[tex]\log _{3} 3^{x-8} = \log _{3} 8[/tex]

This becomes,

[tex](x-8)\log _{3} 3= \log _{3} 8[/tex]

Since [tex]\log _{x} x =1[/tex],

∴ [tex]\log _{3} 3 =1[/tex]

[tex](x-8)(1)= \log _{3} 8[/tex]

[tex]x-8= \log _{3} 8[/tex]

Using the change of base formula [tex]\log _{b} y = \frac{log _{} y}{log _{} b}[/tex]

[tex]\log _{3} 8=\frac{\log 8}{\log 3}[/tex]

Then,

[tex]x-8=\frac{\log 8}{\log 3}[/tex]

[tex]x-8=\frac{0.9031}{0.4771}[/tex]

x - 8 = 1.8929

x = 8 + 1.8929

x = 9.8929

Hence, the value of x that satisfies the given equation is 9.8929

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Use the substitution method to solve the system of equations. Choose the correct ordered pair. 2x + y= 8 and y= -x + 5

Answers

Answer:

The ordered pair is (3, 2).

Step-by-step explanation:

y = -x + 5

2x + y = 8

Substitute y = -x + 5 in the second equation:

2x + (-x + 5) = 8

x + 5 = 8

x = 3.

Now substitute x = 3 into the first equation;

y = -3 + 5

y = 2.

A principal of $4300 is invested at 3% interest, compounded annually. How much will the
investment be worth after 9 years?
Use the calculator provided and round your answer to the nearest dollar.

Answers

9514 1404 393

Answer:

  $5611

Step-by-step explanation:

We can't make use of your calculator, but we know the formula.

__

The future value of the investment is ...

  FV = P(1 +r)^t

  FV = $4300(1.03^9) ≈ $5611

The investment will be worth about $5611 after 9 years.

If two angles are supplementary and one of the angles measures 62°, what is the measure of the other angle?
28°
38°
118°
128°

Answers

Answer:

118°

Step-by-step explanation:

Supplementary angles sum to 180°

let x be one of the supplementary angles, then

x + 62 = 180 ( subtract 62 from both sides )

x = 118°

The measure of the supplementary angles are 62° and 118°

What are Supplementary and Complementary Angles?

Supplementary angles are two angles that have a sum of 180°.

Complementary angles are two angles that have a sum of 90°.

Given data ,

Let the sum of angles be represented as A

Now , let the first angle be represented as p

And , the value of p = 62°

Let the second angle be represented as q

Now , the value of q = q

For supplementary angles , the sum of the angles is 180°

So , on simplifying , we get

A = p + q = 180°

62° + q = 180°

Subtracting 62° on both sides of the equation , we get

q = 180° - 62°

q = 118°

Hence , the measure of the supplementary angles are 62° and 118° respectively

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given the inputs in the table, which function rule produces the outputs?

Answers

The linear graph y = 2x + 3 represents the relationship between the data provided.

What is a function?

It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

We have input and output in the table:

From the points:

(3, 9) and (6, 15)

[tex]\rm \left(y-9\right)=\dfrac{\left(15-9\right)}{6-3}\left(x-3\right)[/tex]

(y - 9) = 2(x - 3)

y = 2x + 3

Thus, the linear graph y = 2x + 3 represents the relationship between the data provided.

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x2+4x+6

a.f(-8) b. f(x+4) c.f(-x)

Answers

Answer:

a. f(-8) = 38b. f(x + 4) = x² + 12x + 38c. f(-x) = x² - 4x + 6

Step-by-step explanation:

[tex]f(x)=x^2+4x+6\\\\a.\\f(-8)-\text{put x = -8 to the equation}\\\\f(-8)=(-8)^2+4(-8)+6=64-32+6=38\\\\b.\\f(x+4)-\text{exchange x to x + 4}\\\\f(x+4)=(x+4)^2+4(x+4)+6\\\\\text{use}\ (a+b)^2=a^2+2ab+b^2\ \text{and}\ \text{distributive property}\\\\f(x+4)=x^2+2(x)(4)+4^2+4x+(4)(4)+6\\\\f(x+4)=x^2+8x+16+4x+16+6\\\\\text{combine like terms}\\\\f(x+4)=x^2+(8x+4x)+(16+16+6)\\\\f(x+4)=x^2+12x+38[/tex]

[tex]c.\\f(-x)-\text{exchange x to -x}\\\\f(-x)=(-x)^2+4(-x)+6=x^2-4x+6[/tex]

at 6 am, an online company has sold 120 items that day. If the company sells an average of 30 items per hour for the remainder of the day , write an expression to represent the number of items that were sold n after 6 am

Answers

Final answer:

The expression to represent the number of items this online company sold n hours after 6am is 120 + 30n. Since the company had already sold 120 items at 6am, and then sells an average of 30 items every hour, the overall quantity of items sold is expressed by this linear formula.

Explanation:

This is a problem related to linear functions, as the company's rate of sales is constant throughout the day. We are given the company sold 120 items at 6 am, which is our starting condition or 'y-intercept'. Then, we know the company sells an average of 30 items per hour, our rate or 'slope', for the rest of the day.

Therefore, the expression to represent the number of items sold n hours after 6 am is 120 + 30n. Here, 120 represents the number of items sold by 6 am, 30 is the average rate at which items are sold per hour, and n is the number of hours after 6 am.

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Final answer:

The expression to represent the total number of items sold n hours after 6 am is 120 + 30n, where 120 is the initial amount at 6 am, and 30n is the number of items sold per hour after 6 am.

Explanation:

The question involves a linear equation to find the number of items sold by a company n hours after 6 am. Given that the company has sold 120 items by 6 am, and that it sells an average of 30 items per hour for the rest of the day, we represent this scenario with an expression. This can be expressed as 120 + 30n, where n represents the number of hours passed after 6 am.

This equation is made up of two parts: 120 represents the initial number of items sold by the company by 6 am, and 30n represents the number of items the company sells per hour (30) multiplied by the number of hours passed after 6 am (n). Hence, the total number of items sold after n hours will be the sum of these two values.

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Which of the following is closest to 32.9 x 7.5?
A:232
B:259
C:220
D:265

Answers

Answer:

B. 259

Step-by-step explanation:

32.9 × 7.5 = 246.75

Therefore, the number closest to 246.75 is 259

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The closest number is B. 259

To find the answer to this question, you need to multiply 32.9 by 7.5. The option that the product of those two numbers is closest to, is the answer.

= 32.9 x 7.5

= 246.75

= 247 rounded off

This number is closest to 259 as the difference between them is only:

= 259 - 247

= 12

The other options are wrong because:

= 247 - 232

= 15

= 247 - 220

= 27

= 265 - 247

= 18

The closest number is therefore 259.

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Lena is training to be a hairstylist.below Are the numbers of haircuts that she gave during each of her eight training shifts . HOW SHOULD I COMPLETE THE DOT PLOT?

Answers

the answer is in the attachment.

Answer:

For 15 you put 3 dots. For 14 you put 2 dots. For 13 you put 2 dots again. And for 12 you put 1 dot.

What is the solution to
y=-3x + 6
y = 9
(-21, 9)
O (9,-21)
• (-1,9)
(9, -1)

Answers

Answer:

(-1,9)

Step-by-step explanation:

y=-3x + 6

y = 9

We know that y=9

Substitute that into the first equation

9 = -3x+6

Subtract 6 from each side

9-6 = -3x+6-6

3 = -3x

Divide by -3

3/-3 =-3x/3

-1 =x

x=-1, y=9

(-1,9)

Try hard to do
This one please

Answers

Answer:

Runner D

Step-by-step explanation:

The coach has her team run at least 60 miles per week. What is the letter of the runner who has completed 0.25 of the weekly distance. 0.25×60=15

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Answers

Answer: 0.35

Step-by-step explanation:

28/43 = 0.65

I’m not sure

Hope this helps!

Evalute 12/y + 9z for y=6 and z=3

Answers

Answer:

29

Step-by-step explanation:

12/6 + 9(3) = 2 + 27 = 29

Answer:

29

Step-by-step explanation:

Find the area of the parallelogram.

A: 11 square units
B: 24 square units
C: 12 square units
D: 14 square units

Answers

The area of the given parallelogram is 24 square units.

What is the area of a parallelogram?

The area of a parallelogram is the product of the height and the base of the  parallelogram.

The height of the given parallelogram is

[tex]= (5-2)[/tex] units

[tex]= 3[/tex] units

The base of the given parallelogram is

[tex]= [7-(-1)][/tex] units

[tex]= 8[/tex] units

Therefore, the area of the given parallelogram is

[tex]= (8)(3)[/tex] square units

[tex]= 24[/tex] square units

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The number of miles driven varies directly as the number of hours driven. After
8
hours,
456
miles were driven.
How long, in hours, does it take to drive
627
miles? Do not include units in your answer.

Answers

Answer: 11

Step-by-step explanation:

You can set up a ratio.

8/456 = x/627

Cross multiply and divide

8 • 627 = 5016

5016 / 456 = 11

Final answer:

It takes 11 hours to drive 627 miles when the rate is 57 miles per hour, which is derived from the given information that 456 miles are driven in 8 hours.

Explanation:

To determine the travel time for 627 miles when we know that 456 miles were driven in 8 hours, we can use the concept of direct variation. With direct variation, if two variables vary directly, as one increases, the other also increases by a constant multiplier known as the constant of variation (k). In this case, the distance traveled varies directly with the time spent driving.

First, we need to determine the rate of driving based on the information provided:

Distance (d) = 456 milesTime (t) = 8 hoursRate (r) = d/t = 456 miles / 8 hours = 57 miles/hour

Now we can use the rate to calculate the time required to drive 627 miles:

Distance (d) = 627 milesRate (r) = 57 miles/hourTime (t) = d/r = 627 miles / 57 miles/hour = 11 hours

It would take 11 hours to drive 627 miles at that rate.

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