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tatiyna
3 years ago
12

4n+22=70, find the value for 3n

Mathematics
1 answer:
stiks02 [169]3 years ago
7 0
<span>4n+22=70
4n = 70 - 22
4n = 48
  n = 12

value for 3n
3n = 3(12) = 36

hope it helps</span>
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Given right triangle MNL what is the value of cos(M)?
FromTheMoon [43]

Step 1

<u>Find the length of the side MN</u>

we know that

Applying the Pythagorean Theorem

ML^{2} =NL^{2} +MN^{2}

Solve for MN

MN^{2}=ML^{2} -NL^{2}

in this problem

ML=25\ units\\ NL=15\ units

Substitute in the formula above

MN^{2}=25^{2} -15^{2}

MN^{2}=400

MN=20\ units

Step 2

<u>Find the value of cos (M)</u>

we know that

in the right triangle MNL

cos (M)=\frac{adjacent\ side\ angle\ M}{hypotenuse}

adjacent\ side\ angle\ M=MN=20\ units\\ hypotenuse=ML=25\ units

Substitute

cos (M)=\frac{20}{25}

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therefore

The answer is

The value of cos(M) is equal to 0.8


6 0
3 years ago
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