in the right triangle shown, ∠a=30° and ab = 12√3 how long is ac

Answers

Answer 1

Solution :

Given that in the right triangle , ∠A=30° and AB = 12√3 .

As the figure is missing and its not clearly mentioned that AB is the base or hypotenuse of the right triangle. So two cases arises-

Case 1: AB is the base for ∠A of  the right triangle (as shown in figure 1).

As we know from the trigonometric ratio that, [tex]cos(\theta) = \frac{base}{hypotenuse}[/tex]

Here , AB is the base and AC is the hypotenuse , and ∠A=30°

[tex]\Rightarrow cos(30)=\frac{AB}{AC} \\\\\Rightarrow AC=\frac{AB}{cos(30)}[/tex]

The value of [tex]cos(30)=\frac{\sqrt{3} }{2}[/tex]

[tex]\Rightarrow AC=12\sqrt{3}\times\frac{2 }{\sqrt{3} }\\\\\Rightarrow AC=24[/tex]

Hence, AC is 24 unit long.

Case 2: AB is the hypotenuse for ∠A of  the right triangle (as shown in figure 2).

As we know from the trigonometric ratio that, [tex]cos(\theta) = \frac{base}{hypotenuse}[/tex]

Here , AB is the hypotenuse and AC is the base, and ∠A=30°

[tex]\Rightarrow cos(30)=\frac{AC}{AB} \\\\\Rightarrow AC=AB\timescos(30)[/tex]

The value of [tex]cos(30)=\frac{\sqrt{3} }{2}[/tex]

[tex]\Rightarrow AC=12\sqrt{3}\times\frac{\sqrt{3}}{2}\\\\\Rightarrow AC=18[/tex]

Hence, AC is 18 unit long.



In The Right Triangle Shown, A=30 And Ab = 123 How Long Is Ac

Related Questions

Cara is grocery shopping and needs chicken and steak for the barbeque she is having on saturday. Chicken is $2.99 per pound and steak is $5.79 per pound. She knows she wants to spend exactly $50 on meat. If c represents pounds of chicken and s represents pounds of steak, which equation represents this situation?

Answers

(2.99×c)+(50×s) this is the equation for the word problem

Subtract. −24−(−19) Enter your answer in the box.

Answers

The solution to the problem is -5

−24−(−19) =

- 24 + 19 =

-5

What is 35 x 42
i really need this answer for a project
i’m in 3rd grade

Answers

Your answer is 1,470

Answer:

the answer is 1470.

Step-by-step explanation:

If you multiple 35 by 42, you get 1470. To check the answer, you can divide 1470 by 35 and get 42. You can also divide 1470 by 42 to get 35.

By recycling one ton of tons of paper6,953 gallons of water are saved how many gallons of water are saved by recycling 4 tons of paper

Answers

This question is based on multiplication.

Given situation is -

by recycling 1 ton of paper , the amount of water saved is = 6953 gallons

So, by recycling 4 tons of paper , the amount of water saved will be=

[tex]6953*4[/tex]

= [tex]27812[/tex] gallons

Hence, 27812 gallons of water are saved by recycling 4 tons of paper.

Omar is born weighing 8 pounds 3 ounces. The doctors says he should gain about 5 ounces each week for the next 4 weeks.How much should omar weight after 4 weeks

Answers

5 ounces for 4 weeks is 20 ounces.
There are 16 ounces in a pound so 20 ounces is 1 pound and 4 ounces.
8 lbs 3 oz plus 1 lb 4 oz is 9 lbs 7 oz.
After 4 weeks, he should weigh 9 lbs 7 oz

Serena makes $9 per hour cutting laws. Each day, she earns about $15 in tips. If serena makes less than $100 on monday, witch inequality represents h, the number of hours she worked on monday

Answers

9h + 15 < 100
This basically says that the total money is less than 100 because her hourly rate times how many hours she worked would be added to her tips for that day.

Find the 64th term of the arithmetic sequence -4, -21, -38, ...−4,−21,−38,

Answers

Answer:

-1075

Step-by-step explanation:

The other person was right they forgot to make it a negative

There are two sequence in mathematics, one is arithmetic and other is geometric sequence. Therefore, the 64th term of the arithmetic sequence is -1075.

What is Arithmetic sequence?

In an arithmetic sequence, the difference between consecutive terms, called common difference, is always the same. Another sequence is the geometric sequence.

The nth term of an arithmetic sequence is given by:

[tex]a_{n}[/tex]=a₁+(n-1)d

In which  is the first term from−4,−21,−38 is a₁  -4

Common difference between two consecutive terms is d=-38-(-21)=-17

substituting in the above equation an=a1+(n-1)d

[tex]a_{n}[/tex]=-4+(n-1)(-17)

Since we have to find the 64th term of the arithmetic sequence we have to put n=64

[tex]a_{n}[/tex]=-4+(64-1)(-17)

 [tex]a_{n}[/tex]   =-4+(63)(-17)

[tex]a_{n}[/tex] =-1075

Therefore, the  64th term in the arithmetic sequence -4, -21, -38 is -1075.

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Factor completely 12x^4 + 6x^3 + 18x^2.

A. Prime
B. 3(4x^4 + 2x^3 + 6x^2)
C. 3x^2(4x^2 + 2x + 6)
D. 3x(4x^3 + 2x^2 + 6x)

Answers

the answer is C hope i helped

A fruit stand collected $1,800 by selling fruit. After paying the tax, the fruit stand had $1,683 left. What was the percentage of tax? __%

Answers

Let's find out how much tax was paid. Subtract the amounts: 1800 - 1683 = 117

So $117 was paid in tax. Divide this over the initial amount 1800 and we get 117/1800 = 0.065

To convert from decimal form to percent form, you multiply by 100. This is basically moving the decimal point 2 spots to the right. So we go from 0.065 to 6.5%

Therefore the answer is 6.5%

How can yo order rational numbers from least to greatest

Answers

To arrange numbers from least to greatest:

First write them down in decimal form. Now it will be easy to determine which value is greater than the other.

Arrange the decimal numbers from least to greatest.

Finally revert the decimal values to their fraction form having arranged them from one with least value to one with greatest value.

How do you solve this what is 0.399 written as a percent

Answers

the answer is 39.9 %

x^2-xy-12y^2

Factor the polynomial.

Answers

Your answer will be (x-4y)(x+3y)

Final answer:

To factor the polynomial x^2-xy-12y^2, we rewrite the polynomial, recognize the common numbers that add to -1 and multiply to -12, factor by grouping, and finally factor out the common binomial term to get the final answer: (x-4y)(x+3y).

Explanation:

To factor the polynomial x^2-xy-12y^2, first you need to recognize that this is a quadratic equation in the form of ax^2+bx+c. Here, a=1, b=-1, and c=-12y^2. The next step involves factoring this quadratic equation. The standard method for factoring such an equation would be to find two numbers that add to b (the coefficient of x) and multiply to c (the coefficient of y^2).

In this case, we are looking for two numbers which add to -1 and multiply to -12. Those numbers are -4 and 3. Therefore, we can rewrite the middle term of the equation (xy) as (-4xy + 3xy). So the equation becomes x^2-4xy+3xy-12y^2.

Now, we can factor by grouping, which means factoring out common factors from each of the two groups: x(x-4y)+3y(x-4y). Finally, we can factor out the common binomial term to get the factored form of the polynomial: (x-4y)(x+3y).

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3 to the 7th power times 3 to the power of negative 4

Answers


[tex] {3}^{7} \times {3}^{ - 4} [/tex]
Multiplying to exponents is the same as adding their powers which will be equal to
[tex] {3}^{3} [/tex]
Which is equal to
3 × 3 × 3
9 × 3
27

Final answer:

To calculate 3 to the 7th power times 3 to the power of negative 4, you add the exponents since the base is the same. This results in 3 cubed (33), which equals 27.

Explanation:

The question asks to calculate 3 to the 7th power times 3 to the power of negative 4. This can be simplified using the rules of exponents. When multiplying powers with the same base, you add the exponents. So for this problem, you would do the following:

3⁷ *3⁻⁴ = 3⁷⁺⁽⁻⁴⁾

3³ because 7 + (-4) equals 3

Therefore, the answer is 33 which is 3*3*3, equaling 27.

Moreover, a negative exponent like 3 to the power of negative 4 indicates that the number 3 is on the denominator, yielding 1 over 3 raised to the 4th power or 1/34.

will mark brainliest, please hurry!


Triangle ABC is transformed to triangle A′B′C′, as shown below:


Which equation shows the correct relationship between the measures of the angles of the two triangles?

The measure of angle ABC = The measure of angle A prime B prime C prime
The measure of angle ABC = The measure of angle B prime C prime A
The measure of angle BCA = The measure of angle A prime B prime C prime
The measure of angle BCA = The measure of angle C prime A prime B prime

Answers

Answer:

The measure of angle ABC = The measure of angle A prime B prime C prime

Step-by-step explanation:

we know that

The transformation of the figure is a reflection, so after the transformation  the shape still has the same size, area, angles and line lengths.

the triangles ABC and A'B'C' are congruent

therefore

the corresponding sides and corresponding angles are equal

so

The relationship between the measures of the angles of the two triangles is

[tex]m<ABC=m<A'B'C'[/tex]

[tex]m<BCA=m<B'C'A'[/tex]

[tex]m<BAC=m<B'A'C'[/tex]


What is the solution set of the equation 3x-x-9=0

Answers

\left[x \right] = \left[ \frac{9}{2}\right][x]=[​2​​9​​] solution set of the equation

solve the equation 7-(4^2-10)+n=10

Answers

7 - (16 - 10) + n = 10

7 - (6) + n = 10
1 + n = 10

n = 9

please show me how to solve this equation step by step!
7(0.4m-0.1)=5.2m+0.86

Answers

7×(0.4m-0.1)=5.2m+0.86
2.8m-0.7=5.2m+0.86
-0.7-0.86=5.2m-2.8m
-1.56=2.4m
m=-1.56÷2.4
m=-0.65

a1=5
an=an−1−3

Which sequence is represented by the given information?
{5,8,11,14}
{5,2,−1,−4}
{5,4,3,2}
{0,−3,−6,−9}

Answers

[tex]a_1=5\\\\a_n=a_{n-1}-3\\\\a_2=a_1-3\to a_2=5-3=2\\\\a_3=a_2-3\to a_3=2-3=-1\\\\a_4=a_3-3\to a_4=-1-3=-4\\\\Answer:\ \{5,\ 2,\ -1,\ -4\}[/tex]

Distributive property for 144 divided by 8 (5th grade)

Answers

18144 divided by 8 Distributive property

The sum of two number is 21. The second number is 6 time the first number. work out the two number.

Answers

you said times and sum, sum is addition and times is multiplication so im confused. can you copy the exact question so i can help?

if f(x)=2x+1 and g(x)=x^2-1, find (f/g)(x)

A. x^2 - 7 / 2x + 1
B. 2x + 1 / x^2 - 7
C. 2x + 1 / x^2 - 7, x ≠ ± square root 7
D. x^2 - 7 / 2x + 1, x ≠ - 1/2

Answers

Given : f(x)=2x+1 and g(x)=x^2-1.

We need to find  (f/g)(x).

Note: In the given options, we have 2x + 1 and  x^2 - 7 parts.

So, let us take f(x)=2x+1 and g(x)=x^2-7.

[tex](f/g)(x) =\frac{f(x)}{g(x)}[/tex]

Plugging f and g functions in the formula.

[tex](\frac{f}{g})(x)=\frac{(2x+1)}{(x^2-7)}[/tex]

Also, it would be undefined for x = ± square root 7 becaue it would give 0 in the denomiantor.

Therefore, correct option is C. 2x + 1 / x^2 - 7, x ≠ ± square root 7.

Please help asap 28 pts

Answers

i think its A not sure on this one but
can you send me a message so you can help me with pysics and ill help u with this

The answer to this question is A

Use the Rational Zeros Theorem to write a list of all potential rational zeros. (5 points)

f(x) = 2x3 - 5x2 + 7x - 3

Answers

So the Rational Zeros Theorem states that the potential zeros are ± P/Q, with P = factors of the constant and Q = factors of the leading coefficient.

In this case, the constant is -3 and the leading coefficient is 2.

P = 1,3Q = 1,2

With P and Q established, divide them all as such:

[tex]\pm \frac{1}{1}, \pm \frac{3}{1}, \pm \frac{1}{2}, \pm \frac{3}{2}\\\\\pm 1,\pm 3, \pm \frac{1}{2}, \pm \frac{3}{2}[/tex]

In short, your potential zeros are ± 1/2, ± 3/2, ± 1, and ± 2.

I got like this
This is my answer

Question 8

Solve the following system of equations using matrices.
3x – 2y = 31
3x + 2y = -1

(5, -8)

(3, 5)

(-3, 9)

(2, 8)

Answers

we are given

system of equations

First equation is

[tex]3x-2y=31[/tex]

Second equation is

[tex]3x+2y=-1[/tex]

now, we can find augmented matrix

[tex]A=\begin{pmatrix}3&-2&31\\ 3&2&-1\end{pmatrix}[/tex]

now, we can change it into reduced row echelon form

step-1: multiply the 1st row by 1/3

[tex]A=\begin{pmatrix}1&-2/3&31/3\\ 3&2&-1\end{pmatrix}[/tex]

step-2:add -3 times the 1st row to the 2nd row

[tex]A=\begin{pmatrix}1&-2/3&31/3\\ 0&4&-32\end{pmatrix}[/tex]

step-3:multiply the 2nd row by 1/4

[tex]A=\begin{pmatrix}1&-2/3&31/3\\ 0&1&-8\end{pmatrix}[/tex]

step-4: add 2/3 times the 2nd row to the 1st row

[tex]A=\begin{pmatrix}1&0&5\\ 0&1&-8\end{pmatrix}[/tex]

so, we get

[tex]x=5,y=-8[/tex]

Answer is (5,-8)

Solution is (5,-8)

3x – 2y = 31

3x + 2y = -1

first we write it in matrix form

3  -2   | 31   -------------> Row 1

3   2   | -1  -------------> Row 2

We use row operations and get matrix in 1   0    and 0  1  form

Subtract Row 2 by row 1.  R2 -> R2 - R1. So R1 remains the same

3  -2   | 31   -------------> Row 1

0   4   | -32  -------------> Row 2

Divide row 1 by 3, R1-> R1/3. So R2 remains the same

1   [tex]\frac{-2}{3}[/tex]   | [tex]\frac{31}{3}[/tex]    -------------> Row 1

0   4   | -32  -------------> Row 2

Divide row 2 by 4. R2 -> R2/4

1   [tex]\frac{-2}{3}[/tex]   | [tex]\frac{31}{3}[/tex]    -------------> Row 1

0   1   | -8  -------------> Row 2

Now we need to get 0 in the place of -2/3

Multiply Row 2 by 2/3  and add it with Row 1. R1 --> 2/3 times R2 + R1

1   [tex]1*\frac{2}{3}+\frac{-2}{3}[/tex]   | [tex]-8*\frac{-2}{3}\frac{31}{3}[/tex]    -------------> Row 1

0   1   | -8  -------------> Row 2

Now simplify the fraction

1   0   | 5    -------------> Row 1

0   1   | -8  -------------> Row 2

So from this we can see that x=5  and y = -8

Solution is (5,-8)



What is the answer for this? The Glee club has 120 cupcakes to sell. They have decided to arrange the cupcakes in the shape of a rectangle, such that the rows have an even number of cupcakes and the columns have an odd number of cupcakes. How many arrangements of cupcakes can they create? Please answer how many arrangements of cupcakes they can make?!?!? Thx

Answers

Answer: 4

Step-by-step explanation:

Find all of the factor pairs of 120, then look for the ones that are even-odd

         120

           ∧

      120   1     even-odd

        60   2    even-even

        40   3    even-odd

         30   4    even-even

         24   5    even-odd

         20   6    even-even

          8    15    even-odd

           10  12    even-even

There are 4 even-odd factors pairs for 120.


A toy company manufactures arcade games. They are marketing a new pinball machine to children. It is similar in size to the adult version of the same game. Both the adult and child models are shown below:

If the perimeter of the adult pinball machine is 172 inches, what is the length, in inches of Segment line G prime A prime? Type the numeric answer only in the box below.

Numerical Answers Expected!

Answer for Blank 1:

Answers

Answer:

Y = 10

Step-by-step explanation:

PLZ HELP 20 PTS
Use rounding to determine if the answer is reasonable. Round each of the factors to the nearest ten, then multiply. 117 × 19 = 222.3

Answers

Its not correct because the answer would be 1,440 (rounded) this is no where near as close as 222.3.

117 * 19

= 120 * 20  to the nearest 10

=  2400   which indicates that 2223 is a reasonable answer.


There are 42 pairs of shoes at the skate rental office.How many individual shoes are there in all?

Answers

In order to answer this question, you must do some multiplication!


So, in order to have a pair of shoes, you must have 2 shoes. There are 42 PAIRS of shoes. So if you wanna find the number of ALL of the shoes, you have to multiply da numbers.



42 × 2 = 84


There are 84 shoes altogether.


If you need anymore help, just let me know!

The number of shoes in one pair is two thus there will be 84 in the office.

What is multiplication?

Multiplication is the general procedure in mathematics in which we multiply two or more numbers by each other to find a new multiplied number.

Multiplication gives us a resultant number that will be very big compared to the number which is going to be multiplied if and only if the number which is going to be multiplied is more than one.

As per the given,

Number of pairs of shoes = 42

Number of shoes in one pair of shoes = 2

Total number of individual shoes = 42 x 2 = 84

Hence "The number of shoes in one pair is two thus there will be 84 in the office".

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There are 13 books on a shelf. 4 of these books are new. (a) what is the ratio of new books to used books (b) what is the ratio of all books to used books?

Answers

New to used:
4:9

All to used:
13:9

Frederick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin.
He spun a 4 five times. Which statements are true? Choose all that apply.

For the experimental outcomes to be closer to the predicted outcome, the number of trials should be increased.
For the experimental outcomes to be closer to the predicted outcome, the number of trials should be decreased.
If the number of trials is changed, the experimental probability also changes.
If the number of trials is changed, the predicted number of outcomes also changes.
If the number of trials is changed, the number of experimental outcomes also changes.
If the number of trials is changed, the theoretical probability also changes.

Answers

The statements about the experimental probability are as follows;

For the experimental outcomes to be closer to the predicted outcome, the number of trials should be increased.;

If the number of trials is changed, the experimental probability also changes. ;

If the number of trials is changed, the predicted number of outcomes also changes.

If the number of trials is changed, the number of experimental outcomes also changes.

Given

Frederick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin.

He spun 4 five times.

What are experimental outcomes?

The experimental outcomes refer to the number of repetitions with no limits.

The statements about the experimental probability are as follows;

For the experimental outcomes to be closer to the predicted outcome, the number of trials should be increased.;

If the number of trials is changed, the experimental probability also changes. ;

If the number of trials is changed, the predicted number of outcomes also changes.

If the number of trials is changed, the number of experimental outcomes also changes.

To know more about Experimental probability click the link given below.

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Final answer:

Increasing the number of trials in Frederick's experiment will make the experimental outcomes closer to the predicted outcome. The law of large numbers explains how the experimental probability tends to approach the theoretical probability as the number of trials increases.

Explanation:

The statement that is true is 'For the experimental outcomes to be closer to the predicted outcome, the number of trials should be increased.' When Frederick spins the spinner 20 times, the experimental probability of spinning a 4 is based on a relatively small number of trials. To get a more accurate result that aligns with the predicted probability, he should increase the number of trials.

According to the law of large numbers, as the number of trials in a probability experiment increases, the experimental probability of an event tends to get closer and closer to the theoretical probability. Therefore, by increasing the number of trials, Frederick can obtain a more reliable experimental probability result.

None of the other statements are true. If the number of trials is changed, the number of experimental outcomes does not change because the number of trials is fixed at 20 in this case. The predicted number of outcomes also does not change because Frederick is not changing the nature of the spinner or the possibilities it can land on. Similarly, the theoretical probability remains the same regardless of the number of trials. Finally, changing the number of trials does not affect the theoretical probability. The theoretical probability is based on the properties of the spinner and would remain constant.

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