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Schach [20]
3 years ago
7

Simplify the expression can someone please help!!!

Mathematics
2 answers:
dangina [55]3 years ago
8 0
Bro cmon this is easy the answer is A
Alekssandra [29.7K]3 years ago
3 0
It’s A.
Hope this helps! My
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Please help! Please explain how to do this, I am so lost.
alexdok [17]
Ok, so we know that RST is equal to 6x+12
And RST is also equal to 78 + 3x-12
so we set them equal to each other

6x + 12 = 3x - 12 + 78
And simplify
3x = 54
x = 18

Finally, we solve for the angle with 18 for x

6(18) + 12
108 + 12
120

Hope this helps
8 0
2 years ago
What shape has four equal sides and four right angles?<br> trapezoid<br> square<br> rectangle
aliina [53]
The answer is a square
5 0
3 years ago
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Marcus earned $230 for 40 hours of work. Phillip earned $192 for 32 hours of work. Are these pay rates proportional? Explain.
Zigmanuir [339]

Answer:

No.

Step-by-step explanation:

Find ROC for Marcus and Phillip

Marcus

230/40 = $5.75 per hour

Phillip

192/32 = $6 per hour

$6 > $5.75

8 0
3 years ago
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If f(x) varies directly with x and f(x) = 72 when x = 6, find the value of f(x) when x = 3.
yaroslaw [1]

Answer:

36

Step-by-step explanation:

Since f(x) varies directly with x, f(x) can be expressed alternatively as \[f(x) = k * x\] where k is a constant value.

Given that f(x) is 72 when the value of x is 6.

This implies, \[72 = k * 6\]

Simplifying and rearranging the equation to find the value of k:

k = \frac{72}{6}

Hence k = 12

Or, \[f(x) = 12 * x\]

When x = 3, \[f(x) = 12 *3 \]

Or in other words, the value of f(x) when x=3 is 36

6 0
3 years ago
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Solve for x:|3x + 12|=18
inessss [21]
|3x+12|=18\iff3x+12=18\ or\ 3x+12=-18\\subtract\ 12\ from\ both\ sides\\\\3x=6\ or\ 3x=-30\ \ \ \ |divide\ both\ sides\ by\ 3\\\\\huge\boxed{x=2\ or\ x=-10}
3 0
3 years ago
Read 2 more answers
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