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s2008m [1.1K]
4 years ago
9

If 2x + 6 = 90°, then x = 42. true or false?

Mathematics
2 answers:
vfiekz [6]4 years ago
4 0
It is true because they both equal 42 =True
finlep [7]4 years ago
4 0
True, The problem is 2x+6=90 Using the equation and substituting x for 42 You use PEMDAS Parentheses Exponents Multiplication Division Addition Subtraction In this equation you substitute like I said above So the equation should look like 2(42)+6=90 You use PEMDAS but since there are no parentheses or exponents you skip to multiplication. So 2×42 is 84. Then you continue with what is left so now you have 84+6=90 84 plus 6 is 90 So the answer is TRUE. I hope this was helpful :) Goodluck!
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The equation of a line that is perpendicular to the given line is y = –4x – 16.

Solution:

The equation of a line given is y = 0.25x – 7

Slope of the given line(m_1) = 0.25

Let m_2 be the slope of the perpendicular line.

Passes through the point (–6, 8).

<em>If two lines are perpendicular then the product of the slopes equal to –1.</em>

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\Rightarrow m_2=-4

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Substitute these in the formula, we get

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y-8+8=-4x-24+8

y=-4x-16

Hence the equation of a line that is perpendicular to the given line is

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