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uysha [10]
1 year ago
11

Find the value of x.

Mathematics
1 answer:
Lina20 [59]1 year ago
4 0

Answer:

Hi,

Step-by-step explanation:

Using Al'Kashi theorem (law of cosines),

x²=26²+19²-2*26*19*cos(31°)

x²= 190,11870690...

So

x=\sqrt{190.11870690} =13,7883540...\approx{13.8}

I hope that this is not a control.

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Find the solution of the system of equations.
avanturin [10]

Answer:

3

Step-by-step explanation:

The number is 3.

Step-by-step explanation:

Finding the Number

To find the number, we have to translate the problem above to an algebraic equation. The algebraic equation refers to the statement of the equality of two algebraic expressions.

Equation:

Let "x" be the number.

4 is divided by a number - 4/x

3 divided by the number decreased by 2 - 3/x-2

"4 is divided by a number is equal to 3 divided by the number decreased by 2"

4/x = 3/x-2

Solution:

Cross multiply.

4/x = 3/x-2

x(3) = 4(x-2)

3x = 4x - 8

(Combine similar terms.)

3x - 4x = - 8

- x = - 8

- x/- 1 = - 8/- 1

x = 8

Final Answer:

8

Checking:

4/x = 3/x-2

4/8 = 3/8-2

1/2 = 3/6

1/2 = 1/2 ✔

7 0
3 years ago
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sattari [20]

A. 70in³ i hope this helps!

3 0
3 years ago
Solve the equation 6(3x + 4) = 4x -4.<br> 10<br> 7<br> 0x = -2<br> Ox=2
Tanzania [10]
-2 is the answer! Remove the parentheses then move the terms. After that, collect the terms and calculate. Lastly, divide both sides.
5 0
3 years ago
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Nadusha1986 [10]
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5 0
3 years ago
Which expression is equivalent to one over threep + 15? one over three(p + 45) one over three(p + 5) 3(p + 45) 3(p + 5)
elena-s [515]

Answer:

\large\boxed{\dfrac{1}{3p+15}=\dfrac{1}{3(p+5)}}

Step-by-step explanation:

"one over threep + 15":

\dfrac{1}{3p+15}=\dfrac{1}{(3)(p)+(3)(5)}=\dfrac{1}{(3)(p+5)}=\dfrac{1}{3(p+5)}

5 0
3 years ago
Read 2 more answers
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