1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Arturiano [62]
3 years ago
5

13 POINTS!!!

Mathematics
1 answer:
hjlf3 years ago
8 0

Answer:

55°

Step-by-step explanation:

Using cosine law

67² = 74² + 14² - 2(74)(14)cos(L)

cos(L) = 169/396

L =55.18378419

You might be interested in
-40-8b=-6(1+7b) what’s the answer
Andre45 [30]

\text{Hey there!}

\mathsf{-40-8b=-6(1+7b)}\\\mathsf{SIMPLIFY\ both\ sides\ of\ your\ equation}\\\mathsf{-40-8b=-6(1+7b)}

\mathsf{Distribute\ the\ RIGHT\ side\ of\ the\ equation }\\\mathsf{Distribute [the\ formula\ is: a(b+c)=a(b)+a(c)=ab+ac]}\\\mathsf{-6(1)+(-6)}(7b)\\\mathsf{-6(1)=-6}\\\mathsf{-6(7b)=-42b}\\\mathsf{\rightarrow\ =-6+(-42b)}

\mathsf{-40-8b=-6+(-42b)}\\\mathsf{\rightarrow -8b-40=-42b-6}

\mathsf{ADD\ by\ 42b\ on\ your\ sides}\\\mathsf{-8b-40+42b=-42b-6+42b}\\\mathsf{SOLVE\ above\ correct\ to\ get\ us\ to\ the\ next\ step!}\\\mathsf{\rightarrow 34b-40=-6}

\mathsf{ADD\ by\ 40\ on\ your\ sides}\\\mathsf{34b-40+40=-6+40}\\\mathsf{Cancel\ out\ -40+40\ because\ that\ gives\ the\ result\ of\ 0}\\\mathsf{-6+40=34}\\\mathsf{\rightarrow New\ equation: 34b = 34}

\mathsf{DIVIDE\ both\ of\ your\ sides\ by\ 34}\\\mathsf{\dfrac{34b}{34}=\dfrac{34}{34}}\\\\\mathsf{Cancel\ out: \dfrac{34b}{34}\ because\ that\ gives\ you\ the\ result\ of\ 1b}\\\\\mathsf{Keep:\dfrac{34}{34}\ because\ it\ solves\ for\ b}\\\\\mathsf{\dfrac{34}{34}=34\div34=1}

\boxed{\boxed{\boxed{\boxed{\mathsf{Thus\ your\ answer\ is:\boxed{\boxed{\mathsf{b=1}}}}}}}}\checkmark

\text{Good luck on your assignment and enjoy your day!}

~\dfrac{\frak{LoveYourselfFirst}}{:)}

8 0
3 years ago
How do you solve this using substitution method<br> 17x+7y=20 <br> Y=20x-42
Nutka1998 [239]

Answer:

17 <em>x</em><em> </em>+ 7 y = 20

y =<em>20x</em><em> </em><em>-</em><em> </em><em>4</em><em>2</em>

<em>1</em><em>7</em><em> </em><em>x</em><em> </em><em>+</em><em> </em><em>7</em><em>(</em><em>20x</em><em> </em><em>-</em><em> </em><em>4</em><em>2</em><em>)</em><em> </em><em>=</em><em> </em><em>2</em><em>0</em>

<em>17x</em><em> </em><em>+</em><em> </em><em>140x</em><em> </em><em>-</em><em> </em><em>2</em><em>9</em><em>4</em><em> </em><em> </em><em> </em><em>=</em><em> </em><em>2</em><em>0</em>

<em>1</em><em>5</em><em>7</em><em> </em><em>x</em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em> </em><em>2</em><em>0</em><em> </em><em>+</em><em> </em><em>2</em><em>9</em><em>4</em>

<em>157x</em><em> </em><em>÷</em><em> </em><em>1</em><em>5</em><em>7</em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em> </em><em>3</em><em>1</em><em>4</em><em> </em><em>÷</em><em> </em><em>1</em><em>5</em><em>7</em>

<em>x</em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em> </em><em>2</em>

<em>y</em><em> </em><em>=</em><em> </em><em>20x</em><em> </em><em>-</em><em> </em><em>4</em><em>2</em><em> </em>

<em>y</em><em> </em><em>=</em><em> </em><em>2</em><em>0</em><em> </em><em>(</em><em>2</em><em>)</em><em> </em><em>-</em><em> </em><em>4</em><em>2</em>

<em>y</em><em> </em><em>=</em><em> </em><em>4</em><em>0</em><em> </em><em>-</em><em> </em><em>4</em><em>2</em>

<em>y</em><em> </em><em>=</em><em> </em><em>-2</em>

<em>there</em><em> </em><em>for</em><em> </em><em>x</em><em> </em><em>=</em><em> </em><em>2</em><em> </em><em>and</em><em> </em><em>y</em><em> </em><em>=</em><em> </em><em>-2</em><em> </em><em>is</em><em> </em><em>the</em><em> </em><em>solution</em><em> </em>

4 0
2 years ago
For which value of theta is cot (theta) undefined?
sattari [20]

The cotangent function is defined as the ratio between cosine and sine of a given angle, i.e.


\cot(x) = \frac{\cos(x)}{\sin(x)}


Since you can't have zero at the denominator, the cotangent function is not defined when the sine is zero.


Let's look at your option:


\sin(90^\circ) = 1, so the cotangent is defined here


\sin(180^\circ) = 0, so the cotangent is not defined here


\sin(270^\circ) = -1, so the cotangent is defined here


\sin(450^\circ) = \sin(360^\circ+90^\circ)=\sin(90^\circ) = 1, so the cotangent is defined here

6 0
3 years ago
Read 2 more answers
Can someone help me with this problem please
Makovka662 [10]

Answer:

Circumference=2πr or πd

So:

3.14 × 6cm

=18.84cm

6 0
2 years ago
Can someone please help me with these questions.
Juli2301 [7.4K]

Answer:

Question 1 - 81.74 Pound sterling

Question 2 - 20.28 Pound sterling

Question 3 - 21.72 United States Dollar

Question 4 - 429.38 New Zealand Dollar

Question 5 - 451.28 Euro

Question 6 - 2,936.88 Chinese Yuan

(That's all I got.)

5 0
3 years ago
Other questions:
  • A hemispherical bowl of radius 12 inches is filled to a depth of h​ inches, where 0less than or equalshless than or equals12. Fi
    7·1 answer
  • Round 61.98 to two significant figures
    14·2 answers
  • What dimension or dimensions do you need to know to find the volume of a sphere?
    14·1 answer
  • Trever and Marisa together have 28 t shirts to sell if marissa has 4 fewer t shirts than trevor find how many t shirt Trevor has
    6·1 answer
  • Which choice is equivalent to the fraction below 2/5
    6·1 answer
  • The currency in Mexico is the Peso. The exchange rate approximately 11.1 Pesos for $3.40 At this rate, how many dollars would yo
    9·1 answer
  • Please help me find h(6)
    7·1 answer
  • ⁵
    14·1 answer
  • Deandra spent $14.00 of the $20.00 in her wallet. What decimal is equivalent to the fraction of the $20.00 Deandra spent? $14.00
    10·1 answer
  • Write the slope-intercept form of the equation of the line described.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!