what is the value of BC in the given triangle?

What Is The Value Of BC In The Given Triangle?

Answers

Answer 1

Answer:

BC = 1.2, Option B

Step-by-step explanation:

1). Apply Law of Cosine: [tex]c^2=a^2+b^2-2ab\cdot cos(\gamma)[/tex]

   [tex]BC^2=AB^2+AC^2-2\cdot AB\cdot AC\cdot cos(\angle\ BAC)[/tex]

   [tex]AB=2\\AC=1\\\angle BAC=25[/tex]

2). [tex]BC^2=2^2+1^2-2\cdot 1\cdot cos(25)[/tex]

    [tex]BC=1.17[/tex]


Related Questions

Amrit's income is 32% more than Bethan's income. Amrit and Bethan's combined income is £54868.
Calculate Amrit's income.

Can you show your working? ​

Answers

b = Bethan's Income

hmmm how much is 32% of "b" anyway?  

[tex]\begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{32\% of b}}{\left( \cfrac{32}{100} \right)b}\implies 0.32b~\hfill \stackrel{\textit{Amrit's Income}}{b~~ + ~~0.32b} \\\\[-0.35em] ~\dotfill[/tex][tex]\stackrel{\textit{\Large Incomes}}{ \stackrel{Bethan}{b}~~ + ~~\stackrel{Amrit}{(b+0.32b)}~~ = ~~\stackrel{combined}{54868}}\implies 2.32b=54868 \\\\\\ b=\cfrac{54868}{2.32}\implies b=23650~\hfill \underset{\textit{Amrit's Income}}{\stackrel{23650~+~0.32(23650)}{\pounds ~31218}}[/tex]

A lime has a mass of 90 grams, and is in the shape of a sphere with radius 1 point
2.5 centimeters. What is the density of the lime?

Answers

The density of the lime is 1.38 g/cm^3.

What is the density of a lime?

Remember that the density is given by the quotient between mass and volume.

Here, the lime is a sphere with a radius of 2.5 cm, remember that the volume of a sphere of radius R is given by:

V = (4/3)*pi*R^3

So our lime has a volume:

V = (4/3)*3.14*(2.5 cm)^3 = 65.42 cm^3

And the mass is M = 90 grams, then the density is:

D = M/V = (90 g)/(65.42 cm^3) = 1.38 g/cm^3

If you want to learn more about density, you can read:

https://brainly.com/question/1354972

John’s current salary is $40,000 per year. His annual pay raise is always a percent of his salary. For the foreseeable future, his pay increases will be 4%. Write an explicit formula for the sequence of amounts. Let s represent John's salary and y represent the number of years.

Answers

Answer:johns my fraind

Step-by-step explanation:

What is the image of the point (-1,7)(−1,7) after a rotation of 90^{\circ}90∘counterclockwise about the origin?

Answers

Answer:

(- 7, - 1 )

Step-by-step explanation:

Under a counterclockwise rotation about the origin of 90°

a point (x, y ) → (- y, x ) , thus

(- 1, 7 ) → (- 7, - 1 )

If 3x² is the length of a rectangle and the area is 12x^4 + 27x², what must be the width?

Answers

Answer:

4x^(2)+9

Step-by-step explanation:


simplify: 1 2/3 - 1/4

Answers

Answer:

[tex]1\frac{5}{12}[/tex]

Step-by-step explanation:

[tex]1\frac{2}{3}-\frac{1}{4}[/tex]

[tex]\mathrm{Subtract\;Whole\;Number}[/tex]

[tex]1-0=1[/tex]

[tex]\mathrm{Combine\;fraction}[/tex]

[tex]\frac{2}{3}-\frac{1}{4}:\frac{5}{12}[/tex]

[tex]=1+\frac{5}{12}[/tex]

[tex]=1\frac{5}{12}[/tex]

Hence, the answer is 1 5/12

~Lenvy~

1. Convert the 1 and 2/3 from mixed partial fractions to improper fractions to make it a bit simpler to calculate

⇒ [tex]1\frac{2}{3} = \frac{5}{3}[/tex]

2. Now lets the change the base of both fractions into a common denominator and solve

⇒ [tex]\frac{5}{3}-\frac{1}{4} = \frac{5*4}{3*4} -\frac{1*3}{4*3} =\frac{20}{12}-\frac{3}{12} =\frac{20-3}{12} =\frac{17}{12} = 1\frac{5}{12}[/tex]

Answer: [tex]\frac{17}{12}[/tex] or [tex]1\frac{5}{12}[/tex]

Hope that helps!

5 yr. 8 mo.
8 yr. 6 mo.
+ 4 yr. 5 mo.
We’re the answer

Answers

What is the question?
Answer to what question

Pls answer the question attached.
I WILL MARK U BRAINLIST

Answers

To simplify, we multiply each single one in the first bracket with both in the second bracket :

[tex](3x+1)(3x-5) = 9x^{2} -15x + 3x - 5[/tex]

Bryce needs to save at least $1400 for new baseball gear. He has $600 and will continue saving $25 a week. Select all the inequalities below that represent this situation where, n, is the number of weeks.
25n + 600 < 1400
25n > 800
25n - 600 > 1400
25n < 800
25n - 600 < 1400
25n + 600 > 1400 ​

Answers

Answer:

25n + 600 > 1400 ​

Step-by-step explanation:

−2w + 6 = 14w = What does w =

Answers

Put this in mathaway and it will help promise
Add 2w on both sides, 6=16w
Divide both sides with 16, w= 6/16 which is 0.375

50 POINTS FOR CORRECT AWNSER

Answers

Answer:

[tex]\sf y \leq \dfrac34x[/tex]

Step-by-step explanation:

Choose 2 points on the line:  (0, 0) and (4, 3)

Let [tex]\sf (x_1,y_1)=(0,0)[/tex]Let [tex]\sf (x_2,y_2)=(4,3)[/tex]

[tex]\sf slope=\dfrac{y_2-y_1}{x_2-x_1}=\dfrac{3-0}{4-0}=\dfrac34[/tex]

point-slope form of linear equation:  [tex]\sf y-y_1=m(x-x_1)[/tex]

[tex]\implies \sf y-0=\dfrac34(x-0)[/tex]

[tex]\implies \sf y=\dfrac34x[/tex]

Solid line : ≤ or ≥

Dashed line: < or >

Therefore as the line is solid, and the shading is below the line,

[tex]\implies \sf y \leq \dfrac34x[/tex]

(-4,-3)(8,6)

Slope:-

[tex]\\ \tt\Rrightarrow m=\dfrac{6+3}{8+4}=\dfrac{9}{12}=\dfrac{3}{4}[/tex]

Equation of line in point slope form

[tex]\\ \tt\Rrightarrow y+3=3/4(x+4)[/tex]

[tex]\\ \tt\Rrightarrow y+3=3/4x+3[/tex]

[tex]\\ \tt\Rrightarrow y=3/4x[/tex]

equation of shaded region

[tex]\\ \tt\Rrightarrow y\leqslant 3/4x[/tex]

It is estimated that there are 1.2 x 10^57 atoms in the Sun. The number of atoms in the rest of the Solar System is
approximately 1.2 x 10^56 About how many more atoms exist in the Sun than in the rest of the Solar system. ( complete answer in scientific notation

Answers

Answer:

56*56

Step-by-step explanation:

The 56*56 is divided by the same option in the 57

Find the missing length. Leave your answer as radical in simplest form

Answers

Answer:

v = [tex]\frac{7\sqrt{2} }{2}[/tex]

u = [tex]7[/tex]

Step-by-step explanation:

First, the angle on the far left is also 45 degrees.

So, v is equal to [tex]\frac{7\sqrt{2} }{2}[/tex] because this is a 45-45-90 triangle, so the sides opposite the 45-degree angles are congruent.

However, u is the side opposite the 90-degree angle, so it is equal to the other side value, multiplied by [tex]\sqrt{2}[/tex].

So, [tex]\frac{7\sqrt{2}}{2}*\sqrt{2}[/tex] is equal to:

[tex]7[/tex]

Hope this helps!

SOMEONE PLS HELPPPPP

Answers

Answer:

answer will be 3rd graph

----------------------------------------------

Solve the inequality.
-4 (7 + 6x)< -2(x+3)
write in inequality integer form ​

Answers

Answer:

-1 >x

Step-by-step explanation:

-4(7+6x)<-2(x-6)

-28-24x<2(x-6)

-28-24x<-2x-6

+6. +6

-22-24x<-2x

+24x +24x

-22 < 22x.

-22÷-22=1 that canceled out

+22÷-22= -1

-1>x. because we divided by a negative the inequality switched.

Hope this helped

Look at all three circles below. All circles have the same pattern. What number should replace the question mark?

Answers

16 :)

please mark brainliest??

How do you solve? Show your work.
-14 - 6x = x + 7

Answers

Answer:

6

1

4

=

+

7

-6x-14=x+7

−6x−14=x+7

6

1

4

+

1

4

=

+

7

+

1

4

Add the numbers

Add the numbers

again

6

=

+

2

1

Subtract  

x

x

from both sides of the equation

6

=

+

2

1

-6x=x+21

−6x=x+21

6

=

+

2

1

Simplify

Combine like terms

Combine like terms

again

7

=

2

1 the answer is=3

Step-by-step explanation:

Answer:

-3

Step-by-step explanation:

-14-6x=x+7

-14-6x+14=x+7+14

-6x=x+21

-6x-x=x+21-x

-7x=21

\frac{-7x}{-7}=\frac{21}{-7}

x=-3

find the missing angle measures

Answers

Answer:

Step-by-step explanation:

180° ( n - 2 )

n = 6 sides

4( x )° + 2( x - 6 )° = 180° ( 6 - 2 )

4x + 2x - 12 = 720

6x = 732

x = 122

x° = 122 °

( x - 6 )° = 116 °

122° + 116° + 122° + 122° + 116° + 122° = 720°

Please help fast!!! Part A How many solutions does the pair of equations for lines A and B have?
Explain your answer. (5 points)
Part What is the solution to the equations of lines A and B?
Explain your answer. (5 points)

Answers

Answer:

1 solution

(3, 4)

Step-by-step explanation:

The pair of equations for lines A and B have 1 solution because there is one point of intersection.

The point of intersection is (3, 4), therefore this is the solution.

Answer:

3,4

Step-by-step explanation:

select the correct equation rule​

Answers

Replace x in the equation and see which one equals the y values:

The answer is f(x) = 2x - 1

The semester fee for an accounting course has been
increased from $3600 to $ 4500. Find the percentage
increase in the fee per semester.

Answers

Answer:

I believe it is a 25% increase

Answer:

11.1111% increase fee for an accounting course,

5.55555% per each semester.

Step-by-step explanation:

Hope this helps! Please let me know if you need more help, or if you think my answer is incorrect. Brainliest would be MUCH appreciated. Have a great day!

(show ur work btw) Multiply 400 and 45.2 together.
Round to the nearest hundredth when necessary.
Answer:

Answers

Answer

18,080

Explantion

400x10=4000x4=16000

400x5=2000

2000+16000=18000

400×.2=80

cause 20% of 400 is 80

so total is 18,080

Adalia ate lunch and wanted to leave her waitress a 15% tip. Hermeal cost $8.95. How much money should adalia leave for the dip?

Answers

Answer:

$1.34

Step-by-step explanation:

15% × 8.95 =

(15 ÷ 100) × 8.95 =

(15 × 8.95) ÷ 100 =

134.25 ÷ 100 =

1.3425 ≈

1.34;

Answer:

1.34$

Step-by-step explanation:

Multiply 8.95 by 0.15 to get 15% tip.


Last year, there were k ples baked for the bake sale. This year, there were 214 ples baked. Using k, write an expression for the total number of ples baked in the
two years.

Answers

Answer:

total number of ples baked in the two years= 214+k

you are supposed to be able to do it your own, i think the maths teacher think in this way.

Solve by row equivalent method. 6x-4y=0.
x+y-5=0​

Answers

Answer:

x=2 , y=3

Step-by-step explanation:

a student earns R220 a week.What does he earn in a year of it takes 2 weeks unpaid.​

Answers

Answer

R11 000 in a year.

Step-by-step explanation:

Student earn R220 a week.A year have 52 weeksIt takes 2 weeks unpaid

Therefore:

52 weeks - 2 weeks unpaid = 50 weeks

50 weeks × R220 = R11 000 in a year

How to understand the Triangle-sum Theorem?

Answers

Answer:

Its Simple All the angles in a triangle adds up to 180°

Step-by-step explanation:

∠A + ∠ B + ∠C = 180° NO matter what. You can also use this in inverse If you have two out of three angles then you can add the two angles you have and subtract the from 180 to get the measurement of the 3rd angle.

Hope this helps

A rectangle has a width of 6 units and a length of 2x+8 units. If the area is 108 units squared, what is the value of X?

Answers

Answer:

x = 5 units

Step-by-step explanation:

Hello!

We know that the area of a rectangle is the length multiplied by the width.

The length is given as 6The width is given as 2x + 8The area is given as 108

We can simply create an expression to solve for x.

Solve:

Area = length x width108 = 6(2x + 8)108 = 12x + 4860 = 12xx = 5

The value of x is 5 units.

The recursive rule for a sequence and one of the specific terms is given. Find the position of the given
term.
f(1)=33, f(n)=f(n-1)+1;38

The term 38 is the BLANK th term

Answers

Answer:

6th term

Step-by-step explanation

What is the equation of the line that contains the points (-5, 0) and (0, 6)?

Answers

Answer:

y=6/5x+6

Step-by-step explanation:

Other Questions
The normal sequence of genes along a hypothetical chromosome is ABC*DEFGH, where letters represent genes and the asterisk (*) represents the centromere. A mutation event results in a chromosome in which the sequence of genes is ABC*DGFEH. This type of mutation is The normal sequence of genes along a hypothetical chromosome is ABC*DEFGH, where letters represent genes and the asterisk (*) represents the centromere. A mutation event results in a chromosome in which the sequence of genes is ABC*DGFEH. This type of mutation is : a. A point mutation. b. A translocation. c. A nonsense mutation. d. A duplication. e. An inversion. como podria la logica contribuir con la convivencia social hey, Brainly weird question but is, "frick your world" a prepositional phrase? I need a prepositional phrase for my essay due Monday and my story included "frick you world" in it can I use it for my prep? 9) What information is used to calculate your credit score?A) credit report and bank statementsB) the average credit history from the previous yearC) information contained on a credit report from the last three monthsD) the information that appears on your credit report the day a score is calculated Paul has an eight-year loan with a principal of $26,900. The loan has an interest rate of 8.18%, compounded quarterly. If Paul pays $1,527 in service charges and makes quarterly payments on his loan, what will his total finance charge be when the loan is repaid? Round all dollar values to the nearest cent. a.$10,588.28 b.$11,546.36 c.$11,370.04 d.$1,527.00 Please select the best answer from the choices provided A B C D Mark this and return Help me with this please :) Which of the following is an activity that is often done in church?prierprendreposergarder A certain kind of plant that is thriving in healthy soil is studied for its watering needs. Some people think this plant needs 10 liters of water per week to stay healthy. Looking at the information from a study shown in the table below, do you agree or disagree? Explain what evidence you used to make your decision. COMPARE & CONTRAST How did the continental army spend the winter of 1777-1778 differently than the British army? What phrase most contributes to the tone of frustration in the beginning of this story? (1 point)America used to be a colony of Great Britain.Colin bit his lip for about the hundredth time.He had been in the States for a few months."It was the most remarkable thing." [tex]-(a+b)+a[/tex]Its so hard please help me quickly please helpppp!!!!im too confused P varies directly as the cube root of Q. if P=25 when Q= 125, find the value of Q when P= 15 PLEASE HURRY!!!!What will be the output of the following program? Assume the user responds with a 5.answer = input ("How many hamburgers would you like? ")priceBurger = 3.00moneyDue = answer * priceBurgerprint ("You owe $", moneyDue)A) An error occurs.B) You owe $moneyDueC) You owe $15.0D) You owe $15 7 Jamila has a large toy box and a small toy box The large box is 120 cm long and 90 cm high. Each length of the small box is one-sixth the length of the large box Write the length and height of the small box. Show your workingLENGTH of small box: .......cmHEIGHT of small box: ......cm Every conditional has two parts. The part following "IF" is the ____ and the part following "THEN" is the ____. 8. What does the author urge the black people to standup for? Ways in which your confidence and self motivation can help you be successful in your studies (1,4) (6,-1) write an equation of the line that passes through each pair of points. The pronoun his in this sentence is incorrect.Each girl put her shoes in the cubby, while the boys put his shoes next to the door.Which pronoun correctly matches the antecedent?A. itsB. theyC. theirD. her