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
BartSMP [9]
3 years ago
5

Does anyone know how to do this? MATH ANSWERS ONLY ​

Mathematics
1 answer:
Gnoma [55]3 years ago
3 0

Answer:

<em>34.2 ; 105.8 ; 12.0</em>

Step-by-step explanation:

\frac{a}{sinA} = \frac{b}{sinB} = \frac{c}{sinC}

c² = a² + b² - 2abcosC

~~~~~~~~~~~~

sinB = \frac{bsinA}{a}

sinB = 7sin40° ÷ 8 ≈  0.562439

<em>m∠B</em> ≈ <em>34.2°</em>

<em>m∠C</em> = 180° - ( 40° + 34.2° ) = <em>105.8°</em>

c² = 8² + 7² - 2(8)(7)cos106° ≈ 143.87

<em>c </em>≈ <em>12.0 </em>units

You might be interested in
Find the volume of this object. Use 3 for pi. (CAN ANYONE HeLP:))
USPshnik [31]

Step-by-step explanation:

sorry for the rough handwriting but that's that

3 0
3 years ago
The graph of which function(s) will contain the point (4, 12)? y = x + 8 y = 3x y = 2x y = x + 6
Alex777 [14]

Answer:

y=x+8  and y=3x

Step-by-step explanation:

The Given point is (4,12)

now we can substitute the point in each of the function and check wether it lies on it or not.

A.  y=x+8

substitute y=12,x=4

12=4+8=12 which is true

B.  y=3x

substitute y=12,x=4

12=3*4=12 which is true

C.  y=2x

substitute y=12,x=4

12=2*4=8  which is not true

D.  y=x+6

substitute y=12,x=4

12=4+6=10 . which is not true

Therefore option A and B are correct.

4 0
3 years ago
What is the x-value of the solution of the system of
Nady [450]

Answer:

x = -1, y = -4

Step-by-step explanation:

Let's solve our system of equations by substitution.

y = 5x + 9y = −x + 3

Step: Solve = 5x + 9 for y:

y = 5x + 9

Step: Substitute 5x + 9 for y in y = −x + 3:

y = −x + 3

5x + 9 = −x + 3

5x + 9 + x = −x + 3 + x (Add x to both sides)

6x + 9 = 3

6x + 9 + −9 = 3 + −9 (Add -9 to both sides)

6x = −6

6x/ 6 = −6/6(Divide both sides by 6)

x = −1

Step: Substitute −1 for x in y = 5x + 9:

y = 5x + 9

y = (5)(−1) + 9

y = 4(Simplify both sides of the equation)

So our answers are y = -4 and x = -1.

8 0
3 years ago
One angle of an isosceles triangle measures 130°. Which other angles could be in that isosceles triangle? Choose all that apply.
7nadin3 [17]

Answer:

65°

Step-by-step explanation:

A triangle always will ad up to 180°. Therefore, if you subtract 130° from 180° you'll probably get 50° but that's the closest one to it.

Hope this helps :)

5 0
3 years ago
If c = 4 and d = 5, find c:d.
Julli [10]
Would it not be 4:5 as a ratio?
8 0
3 years ago
Read 2 more answers
Other questions:
  • Write an equivalent expression for 5(-2x - 3)
    13·1 answer
  • May someone explain please?
    12·1 answer
  • The data set shows the ages of the members of a book club. What is the shape of the distribution of this data set?
    10·1 answer
  • What is the opposite reciprocal of 6
    6·1 answer
  • Does anyone know how to do this?
    12·1 answer
  • Dilma is on a 10 1/2 mile hike. She has hiked 2/3 of the total distance already. How many miles has she already hiked?
    9·2 answers
  • Katie wants to purchase a camera that cost $149.99. She has $435.00 in her checking account. Which statement is true if Katie us
    13·1 answer
  • How to solve instantaneous velocity
    10·1 answer
  • Define percent. Write 25/100 as a percent then write 25/100as a decimal
    10·1 answer
  • Water boils at 100LaTeX: ^\circ∘ Celsius or 212LaTeX: ^\circ∘ Fahrenheit. Water freezes at 0LaTeX: ^\circ∘ Celsius or 32LaTeX: ^
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!