Suppose a triangle has two sides of length 42 and 35, and that the angle
between these two sides is 120°. Which equation should you solve to find the
length of the third side of the triangle?
A. c²=422+352-2(42)(35)sin120°
sin 35
B.
sin42
120
=
b
OC.
2²=42²+35²-2(42)(35)cos120°
D. c=42+352(42)(35)cos120°

Answers

Answer 1

Answer:

The correct option is C because it shows the accurate cosine rule

Answer 2

Equation to get the third side :  [tex]c = \sqrt{(42^2 +35^2 -2\times 42\times35\times cos(120\degrees ))}[/tex]

The correct option is C.

Given, that sides of triangle are 42 cm and 35 cm .

The third side can be found using the Law of Cosines,

[tex]c^2 = a^2 +b^2 - 2ab\times cos(C)[/tex]

where C is the angle opposite the third side (c) .

For the given side lengths, then the third side can be found .

Here,

a = 42

b = 35

∠C = 120°

Substitute the values,

[tex]c = \sqrt{(42^2 +35^2 -2\times 42\times35\times cos(120\degrees ))}[/tex]

[tex]c = \sqrt{1764 + 1225 + 1470} \\c = \sqrt{4456}\\c = 66.75[/tex]

Hence the third side is of 66.75 units.

The correct option is C .

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Related Questions

3+x=7 help please I’m so confused

Answers

×=4

Step-by-step explanation:

#CARRY LEARNPA BRAINLIEST PO!

Answer:

[tex]\huge\boxed{\bf\:x = 4}[/tex]

Step-by-step explanation:

[tex]3 + x = 7[/tex]

Bring 3 to the right hand side of the equation and isolate the variable.

[tex]3 + x = 7\\x = 7 - 3\\\boxed{\bf\:x = 4}[/tex]

[tex]\rule{150pt}{2pt}[/tex]

Solve for x. Leave your answer in simplest radical form

Answers

Answer:

x = 2√7

using Pythagoras theorem:

7² + ?² = 9²?² = 81 - 49? = √32? = 4√2

For the bottom part:

x² + 2² = (4√2)²x² + 4 = 32x² = 28x = √28x = 2√7

Answer:

this is my answer

5.29

Step-by-step explanation:

Hope this helps

May I get help on these questions, please?

Answers

hello! here are the basic rules that you need to know to solve these problems:

a diameter is 2 × the radius
the circumference rule is 2×π×radius

I will solve the first question to show how to format.

1: 5/2=2.5
2×2.5×π=5×π=15.7

This is just a question to answer to boost your points. (students who need points to find answers only!)

What is the correct answer to 5x5/2?

Answers

Answer:

it would be 12.5

Step-by-step explanation:

brainly deleted my answer from before

A cylinder with a height of 8 inches and a radius of 4 inches what is the volume?

Answers

Answer:

Formula for volume of cylinder;

V = π[tex]r^{2}[/tex]h

Where 'π' is pi(22/7 or 3.14), 'r' is the radius which is being squared, and 'h' represents the height.

Plug in your values given that;

8 in. = height

4 in. = radius

V = π[tex]r^{2}[/tex]h

V = 3.14(4^2) x 8

V = 3.14(16) x 8

V = 50.24 x 8

V = 401.92 cubic inches or [tex]401.92^{3}[/tex] inches is the volume.

pls help will give brainliest

Answers

definition of parallelogram
definition of bisector
reflexive property of congruence
definition of midpoint

The complete table is,

3) Definition of parallelogram.

4) Alternate interior angle theorem.

5) Reflexive property of congruence.

6) By SAS congruency theorem.

What is mean by Rectangle?

A rectangle is a two dimension figure with 4 sides, 4 corners and 4 right angles. The opposite sides of the rectangle are equal and parallel to each other.

Given that;

⇒ ABCD is a parallelogram.

Now, We have complete table is,

Statements                        Reasons

1) AD || BC                     Definition of parallelogram.

2) ∠ADB ≅ ∠CBD          Alternate interior angle theorem.  

3) AB || CD                    Definition of parallelogram.

4) ∠ABD ≅ ∠CDB         Alternate interior angle theorem.  

5) DB ≅ DB                  Reflexive property of congruence.

6) ΔABD ≅ ΔCDB         By SAS congruency theorem.

Thus, The complete table is,

3) Definition of parallelogram.

4) Alternate interior angle theorem.

5) Reflexive property of congruence.

6) By SAS congruency theorem.

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need help hurry!!!!!

Answers

Answer:
Hope this helps

Answer:

y=3x

Step-by-step explanation:

Okay first you need to solve this. Distribute the 3 first to the parantheses and you get y+3=3x+3. Than you subtract 3 and get y=3x. Now you start at 0,0 the origin and go 3 units up and 1 unit to the right. Continue that until a line shows.  Same with the bottom. Go down 3 left one.

Write the phrase as an expression.
18 added to a number n

Answers

Answer:

n + 18

Step-by-step explanation:

n + 18

18 added to n: n + 18


Ex: 7 added to 3 = 3 + 7 = 10



Hope this helps!

I need this answered please

Answers

Answer:

54

Step-by-step explanation:

1, 3, 5, and 7, all have the same angle size: 126 so we can use this to find 6 and 8 :)

180 - 126 =54

6 and 8 would both equal 54 :)

Have a great day!!

Please rate and mark brainliest!!

it’s 54 bc of alt int angles and vertical angles and that stuff

Find (fog)(x) given f(x) = 2x2-x+1 and g(x) = 4x +3

Answers

Answer:

fg(x) = 32x²+44x+16

Step-by-step explanation:

fg(x) = f[g(x)]

= f(4x+3)

= 2(4x+3)²-(4x+3)+1

= 2(4x+3)²-(4x+3)+1

= 2(16x²+24x+9)-4x-3+1

= 32x²+44x+16

Which expression is equivalent to 3/5?

Answers

Answer:

6/10 or 0.6 or 60% Hopefully this helps

Answer:

The fractions equivalent to 3/5 are 6/10, 9/15, 12/20, etc. Equivalent fractions have the same value in the reduced form. Explanation: Equivalent fractions can be written by multiplying or dividing both the numerator and the denominator by the same number.

Step-by-step explanation:

Help me quickly!!
Brainliest + 50 points
No spammers allowed
Thanks in advance
:) :)

Answers

Answer:

x = 5

Step-by-step explanation:

Given coordinates: (3, 4) (x, 6)

Slope: 1

Use the slope formula to find the value of x:

Slope = y2 - y1 / x2 - x1

Substitute the given information into the formula:

1 = [tex]\frac{6-4}{x-3}[/tex]

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

Multiply both sides of the equation by the common denominator:

[tex]\frac{2(x-3)}{x-3} = x-3[/tex]

Reduce the fraction:

2 = x - 3

Rearrange variables to the left side of the equation:

-x = -3 - 2

Calculate:

-x = -5

Divide both sides with the coefficient of the variable:

x = 5

hope this helps!! p.s. i really need brainliest :)

Answer:

x = 5

Step-by-step explanation:

Slope formula

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

[tex]\sf let\:(x_1,y_1)=(3,4)[/tex]

[tex]\sf let\:(x_2,y_2)=(x,6)[/tex]

[tex]\sf \implies slope=\dfrac{6-4}{x-3}=\dfrac{2}{x-3}[/tex]

As the slope equals 1:

[tex]\begin{aligned}\sf \implies \dfrac{2}{x-3} & =1\\\sf 2 & =\sf x-3\\ \sf 2+3 & =\sf x\\ \sf x & = \sf 5\end{aligned}[/tex]

Therefore, x = 5

8. Instructions: Find the missing side of the triangle.

Answers

Answer:

197

Step-by-step explanation:

to solve Hypotenuse:

a^2+b^2=c^2

Plug in:

28^2+195^2=c^2

Solve:

784+38025=c^2

38809=c^2

sqrt 38809=sqrt c^2

c=191

I hope it helps!!!

Find the volume of the rectangular prism. Enter your answer in the box
u will get 50 points don't answer if you don't know

Answers

Answer:

151.7 cm^3

Step-by-step explanation:

3.7 x 10 x 4.1 = 151.7

BRAINLIEST? TY!!

Answer:

151.7 cm^3

Step-by-step explanation:

If you didn't know already the volume of a rectangular prism is

length x witdh x height.

Multiply 10x4.1 and you will get 41

Then multiply 41 by 3.7 to get 151.7.


Write a formula for function h in terms of function f.
h(x)=

Answers

Answer:

h(x) = f(x + 12) - 4

Step-by-step explanation:

According to the graph, the function h(x) is the translation of the function f(x) to the right and down.

Compare the coordinates of the vertices to write the formula

(- 6, 11) → (6, 7)x = 6 - (-6) = 12y = 7 - 11 = - 4

The formula is

h(x) = f(x + 12) - 4

Answer:

h(x) = f(x - 12) - 4

Step-by-step explanation:

The vertex is the turning point (stationary point or minima/maxima) of the graph.

To find the series of translations that transform the graph of y = f(x) onto y = h(x), compare the vertices of both graphs.

Vertices of given functions:

Vertex of f(x) = (-6, 11)Vertex of h(x) = (6, 7)

Differences

x-values:  6 - (-6) = 12y-values:  7 - 11 = -4

Therefore, y = f(x) has been:

translated 12 units righttranslated 4 units down

Translations

For a > 0

[tex]f(x+a) \implies f(x) \: \textsf{translated}\:a\:\textsf{units left}[/tex]

[tex]f(x-a) \implies f(x) \: \textsf{translated}\:a\:\textsf{units right}[/tex]

[tex]f(x)+a \implies f(x) \: \textsf{translated}\:a\:\textsf{units up}[/tex]

[tex]f(x)-a \implies f(x) \: \textsf{translated}\:a\:\textsf{units down}[/tex]

Therefore:

f(x) translated 12 units right = f(x - 12)f(x - 12) translated 4 units down = f(x - 12) - 4

So the formula for h(x) in terms of f(x) is:

h(x) = f(x - 12) - 4

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What is a solution to 3x-26/7=-5/x if x/= 0

Answers

Answer:

Step-by-step explanation:

What is the area of the triangle shown below ?3.7mm 4.8mm

Answers

I can’t answer because I don’t have the picture of the triangle

if 6 coins are flipped, find the probability that there is at least one heads?

Answers

63 in 64 chance


With 6 coins you times by 2 and minus by 1 again resulting in a 63 in 64 chance. To find the chance of getting at least one heads if you flip ten coins you times 64 by 2 four times or by 16 once and then minus 1, this results in a 1063 in 1064 chance of getting at least one heads.

Answer:

63 in 64 chance

Step-by-step explanation:

If you for one coin it would be a 50% chance so you multiply that [tex]\frac{1}{2}^{6}[/tex] which would be the probability of no heads 1/64 and at least 1 head you would [tex]1-\frac{1}{64}[/tex] which is [tex]\frac{63}{64}[/tex]. Ask me if you have any further questions

PLEASE ANSWER!!!!
Yusuf tried to solve an equation step by step.
1/4r+2=10
Step 1:
1/4r=12
Step 2:
R=48
Find Yusuf's mistake.
Choose one answer:
A.) Step 1
B.) Step 2
C.) Yusuf didn't make a mistake

Answers

Answer:

Step-by-step explanation:

Step one is not correct. He got 12. He should have obtained 10 -2  = 8. You need to subtract 2 on the left to get rid of the 2 there. So you must subtract 2 on the right.

Answer: Step one contains the error.

Answer:

A. Step 1

Step-by-step explanation:

I did it on khan so its right

Write the statements of the following algebraic expressions!
A- a+1
B- q-9
C- 3y+7
D- x/3+9
E- 3x+10

Answers

Answer:

See below ↓↓↓↓↓

Step-by-step explanation:

A - the sum of a number 'a' and 1B - the difference between a number 'q' and 9C - 7 plus the product of a number 'y' and 3D - 9 plus the quotient of a number 'x' and 3E - 10 plus the product of a number 'x' and 3
A- a+1

= 1 more than a number (a)

B- q-9

= q less than 9

C- 3y+7

= 3 times y added to 7

D- x/3+9

= a number (x) divided by 3 more than 9

E- 3x+10

= 3 times x added to 10


A growing farming conglomerate increases its water usage at a rate of 10% every year. If it
used 13,000 megaliters of water this year, then how much water will it use 17 years from
now?

Answers

The quantity of water the farming conglomerate would use 17 years from now is 65,708.11.

What is the amount of water that would be used 17 years from now?

The formula for calculating the amount of water that would be needed 1 years from now:

FV = P (1 + r)^N

FV = Future value P = Present value R = interest rate N = number of years

13000 x 1.1^17 = 65,708.11

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what is the discount on a pair of shoes with a regular price of $48?

Answers

The discounts on a pair of shoes with a regular price of $48 is 24

Question 17 of 25
After being rearranged and simplified, which equation cannot be solved using
the quadratic formula?
O A. 5x2 – 3x+ 10 = 2x2
B. 2x2 – 3x + 10 = 2x2 + 21
-
O c. x2 - 6x- 7 = 2x
O D. 2x - 4 = 2x2
SUBMIT

Answers

Answer:

B. 2x2 – 3x + 10 = 2x2 + 21

Step-by-step explanation:

2x2 – 3x + 10 = 2x2 + 21

Subtract 2x^2 from each side

2x2- 2x^2 – 3x + 10 = 2x2 + 21-2x^2

-3x+10 = 21

This is a linear equation and does not use the quadratic equation to solve

-

Write a real world problem that can be presented by the equation y + 20 = 85

Answers

Sally and Susie went shopping at a grocery store, they spent $85 in total. Sally spent $20, how much did Susie spend?

Work out
92.6
% of
103.93
km
Give your answer rounded to 2 DP. HURRY

Answers

to find:

92.6% of 103.93km

solution:

Our output value is 103.93.

let's represent the unknown as x.

103.93=100%

Similarly, x=92.6%

103.93= 100% (1)

x= 92.6% (2)

By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of bothequations have the same unit (%); we get:

103.93/x = 100%/ 92.6%

the reciprocal of both sides gives:

x/ 103.92 = 92.6/100

= 96.23918

2 dp= 96.24

so 92.6% of 103.93km is 96.24 when rounded to 2 decimal place.

Answer:

96.24 km

Step-by-step explanation:

To Find :

92.6% of 103.93 km

Solving :

% to decimal = ÷ by 10092.6% = 0.926⇒ -.926 x 103.93⇒ 96.23918⇒ 96.24 km (In 2 decimal places)

On an eight-day hiking trek, Sam utilized six loaves of elf bread. If he consumes the same quantity of bread every day, he wants to know how many loaves of elf bread (b) he should bring on a 12-day hiking trip.
For a 12-day trip, how many loaves of elf bread should Sam bring?

Answers

Answer:

9

Step-by-step explanation:

So you would make use of the rules of direct proportion. When A increases B would also increase vice versa, in this case, A would represent the number of days and B would represent the amount of Elf Bread consumed. Let's say that the unknown value would be D. If we place this into a table it would say:

[tex]\left[\begin{array}{ccc}Days&8&12\\Number of loaves&6&D\end{array}\right][/tex]

Next, you'll make use of the cross-multiplication rule.

So 8 X D = 12 X 6

8D = 72

You'll then divide each side by 8.

[tex]\frac{8D}{8}[/tex] = [tex]\frac{72}{8}[/tex]

D = 9

Sam would consume 9 loaves of day for a 12-day trip.

Hope that I've explained this well enough

Is the following parallelogram actually a rectangle?
True
False

Answers

False

Explain

Answer is no, it's not a rectangle

Answer:

False

Step-by-step explanation:

Check if there is a right angle using the Pythagorean Theorem:

7.2^2 + 9.1^2 ≟ 12^2

134.65 ≠ 144,

so since there isn't a right angle, this is not a rectangle.

The rule for the nth term of a sequence is 5n + 16
Find the 10th term of the sequence.

Answers

Answer:

66

Step-by-step explanation:

It's given that

Tn = 5n + 16

The 10th term is

T10 = 5(10) + 16

= 66

The 10th term of the sequence is 66.

What is Sequence?

In mathematics, a sequence is a list of numbers arranged in a specific order. Each number in the sequence is called a term. Sequences can be finite, meaning they have a specific number of terms, or they can be infinite, continuing indefinitely.

We have the rule: 5n + 16

Now, To find the 10th term of the sequence, we can substitute n = 10 into the given rule:

5n + 16 = 5(10) + 16 = 50 + 16 = 66

Therefore, the 10th term of the sequence is 66.

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Which inequality does the graph represent (pls I’m HORRIBLE at number lines so please answer both if possible, Ty)

Answers

Answer:

For #11 it is X≥-2.  For #12 it is X<-1 I think

Step-by-step explanation:

I hope this helps you and please mark me as brainliest

5% of a number is 80, what is 25% of the same number? A. 4 B. 40 C. 400 D. 440​

Answers

Answer: 400

Step-by-step explanation:

If 5% of a number is 80, just multiply that number by 5 to get 25 (5 x 5 = 25) and you will get 400.

Other Questions
What adventure activities are outside your comfort zone? Which of them might you be willing to try? PLEASE HELP ME OUT AND PLEASE Read the passage.In the year 1900, a large percentage of Americans had been born outside the country8,881,548 were born in Europe, 120,248 in Asia, 2,538 in Africa, and 137,840 in Latin America. Immigration had increased by 1930, when 11,784,010 residents had been born in Europe, 275,665 in Asia, 18,326 in Africa, and 791,840 in Latin America.By 1990, the world had changed. Due to changes in immigration laws, as well as peace and prosperity in Europe, fewer residents came from Europe. In fact, 4,350,403 residents were born in Europe, 4,979,037 in Asia, 363,819 in Africa, and 8,407,837 in Latin America.What would be the best visual presentation for the data in the passage?a chart with years as column headers and regions as row namesa thematic map showing the change in the immigrant population in the USa series of circle graphs showing the percentage of immigrants from each region in each yeara series of world maps showing how many immigrants came to the US from each region in each year When creating video marketing content on a budget, what is the first thing you should consider doing? PART A: Which of the following most closely matches the meaning of the word papers as it is used in paragraph 2? A personal identification documents B news reports C material for writing secret escape plans D ration cards in order to get food while travelingPART B: Which word/phrase from the text best supports the answer to Part A? 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