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Rufina [12.5K]
2 years ago
8

What is the equation needed to solve for X?

Mathematics
2 answers:
erma4kov [3.2K]2 years ago
6 0
2.4 is the right answer my guy

Brut [27]2 years ago
6 0

Answer:

x - 8 + 4x - 7 = 180 \\  \\ 5x - 15 = 180 \\  \\ 5x = 180 + 15 \\  \\ 5x = 195 \\  \\ x = 195 \div 5 \\  \\ x = 39 \\

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For the right triangle find the missing length. Round your answer<br> to the nearest tenth.
Drupady [299]

Answer:

5.8

Step-by-step explanation:

tangent = opposite over adjacent

10*tan(30) ≈ 5.774

round to the nearest 10th

5.8

5 0
2 years ago
Read 2 more answers
PLEASE HELP ME!!!!
Damm [24]

Answer:

  • sin C=h/a
  • substitution property of equality
  • commutative property of multiplication

Step-by-step explanation:

Because two points determine a line, you can draw altitude​ BD perpendicular to AC with height h. By the definition of a sine ratio, <u>sin(C) = h/a</u>, which can be rearranged into​ a·sin(C) = h​. The area of △ABC is A=1/2bh. The <u>substitution property of equality</u> can be used to write A=1/2b(a sinC), which becomes A=1/2ab(sinC) by the <u>commutative property of multiplication</u>.

___

The mnemonic SOH CAH TOA reminds you that the sine ratio is ...

  Sin = Opposite/Hypotenuse

Here, the side of the right triangle opposite angle C is designated "h", the height of ∆ABC. The hypotenuse of that right triangle is side "a". So ...

  sin(C) = h/a

__

The substitution property of equality lets you replace any expression with its equal. Here, we have h=a·sin(C), so we can use a·sin(C) in place of h in the formula for triangle area:

  1/2bh = 1/2ba·sin(C)

__

The commutative property of multiplication lets you rearrange the order of the factors in a product, so ...

  ba = ab

and

  A = 1/2ba·sin(C) = 1/2ab·sin(C)

7 0
3 years ago
−x=5<br> x =<br><br><br><br> wut is thi$
Vlada [557]

Answer:

x = -5

Step-by-step explanation:

-x = 5

*-1   *-1

-x * -1 = x

5 * -1 = -5

x = -5

5 0
3 years ago
Please help quickly! no bots!
Sliva [168]

Answer:

Question 2: 4th answer, Question 3: 3rd answer

Step-by-step explanation:

I think that is correct hope it helps!

3 0
2 years ago
Read 2 more answers
Isolate the variable to find the solution of the equation. 6. 2w = 18. 6 w = 3 w = 12. 4 w = 24. 8 w = 115. 32.
Anarel [89]

An equation is formed of two equal expressions. The solution of the equation is w=3.

<h3>What is an equation?</h3>

An equation is formed when two equal expressions are equated together with the help of an equal sign '='.

In order to solve the equation, we need to isolate the variable in the following manner, therefore, the solution of the equation can be written as,

6.2w=18.6

Divide both sides of the equation by 6.2,

6.2w=18.6\\\\\dfrac{6.2w}{6.2}=\dfrac{18.6}{6.2}\\\\w = 3

Hence, the solution of the equation is w=3.

Learn more about Equation:

brainly.com/question/2263981

7 0
2 years ago
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