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3 years ago

I need help plz !!!!!!!!!!!!!

Mathematics

1 answer:

Mumz [18]3 years ago

3 0

Angle A is 73 degrees.

This can be found by using the values for both angles and setting them equal to 180. Since they are alternating interior angles of intersections of parallel lines, they must equal 180.

6x - 35 + 3x + 53 = 180
9x + 18 = 180
9x = 162
x = 18

Since x = 18 we can place that into the equation for angle A in order to find it's value alone.

6x - 35
6(18) - 35
108 - 35
73

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3 years ago

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Jlenok [28]

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4 years ago

if my grade in math is a 51.32% and I get at least a 70% on my test. What percentage will my grade go up too? ( test are worth 4

bazaltina [42]

Keeping in mind that 70% of anything is 70/100 * anything, thus

$\bf \begin{array}{ccll}
\stackrel{percentage}{points}&\stackrel{test}{completed}\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
45&1\\\\
x&\frac{70}{100}
\end{array}\implies \cfrac{45}{x}=\cfrac{1}{\frac{70}{100}}\implies \cfrac{45}{x}=\cfrac{\frac{1}{1}}{\frac{7}{10}}
\\\\\\
\cfrac{45}{x}=\cfrac{1}{1}\cdot \cfrac{10}{7}\implies \cfrac{45}{x}=\cfrac{10}{7}\implies \cfrac{45}{x}=\cfrac{10}{7}\implies \cfrac{45\cdot 7}{10}=x
\\\\\\
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3 years ago

If a² = 7/36, then a is <br> a) Rational b) irrational c) whole number d) integer

Mkey [24]

9514 1404 393

Answer:

b) irrational

Step-by-step explanation:

a² = 7/36 . . . . . . given

a = (√7)/(√36) = (√7)/6

7 is not a perfect square integer, so √7 is irrational. Dividing it by an integer does nothing to make 'a' rational. <em>a</em> is irrational.

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3 years ago