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ziro4ka [17]
3 years ago
9

Angle R and Angle T are complementary. If m of Angle R = 3x and m of Angle T = 2x, what is the value of x?

Mathematics
2 answers:
brilliants [131]3 years ago
5 0
Complementary angle add up to 90. So, we can represent this relationship as an equation. 3x+2x=90. 5x=90. x=18.
Papessa [141]3 years ago
3 0
3x + 2x = 90   (because  <R and <T are complentary)

5x = 90

x = 18 Answer
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In parallelogram DEFG, DH = x + 5, HF = 2y, GH = 4x-3 and HE = 4y + 1. Find the values of x and y. The diagram is not drawn to s
GalinKa [24]
Rule: The diagonals of any parallelogram bisect each other. In other words, they cut each other in half.

This means DF is cut into two equal pieces: DH and HF.
Similarly, GE is cut into two equal pieces: GH and HE.

DH = HF
x+5 = 2y
x = 2y-5

GH = HE
4x-3 = 4y+1
4(x)-3 = 4y+1
4(2y-5)-3 = 4y+1 ... x has been replaced with 2y-5
8y-20-3 = 4y+1
8y-23 = 4y+1
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y = 6

If y = 6, then x is
x = 2y-5
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--------------------------------------------

Answers: 
x = 7 and y = 6

5 0
3 years ago
What is the derivative of y with respect to x if y = 2/X4
zepelin [54]
You're correct, the answer is C.

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For this example we have y= \frac{2}{x^4}, first lets get rid of the quotient and write the expression in the form y=x^n:
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Now we can directly apply the rule stated at the beginning (in which n=-4):
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6 0
3 years ago
What is the factor for the expression - 3x + 6
Archy [21]

Hello from MrBillDoesMath!

Answer:

3 ( -x + 2) is the factorization; 3 is the common factor

Discussion:

Each term in   -3x + 6 has 3 as a factor so the factorization is

3 ( -x + 2)


Thank you,

MrB

5 0
3 years ago
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Let T = total cost

Let 8c = total amount of children tickets

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7 0
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