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igor_vitrenko [27]
3 years ago
10

Anyone by chance know how to answer this geometry question I need help so bad

Mathematics
1 answer:
NemiM [27]3 years ago
8 0

Answer:

x = -8 and BDC is 68 degrees.

Step-by-step explanation:

Combine -7x+12 and -8x+48 to get -15x+60.  Since BDA is a straight angle put the above equation to get -15x+60=180.  Subtract 60 from both sides to get -15x=120.  Divide -15 both sides to get -8 as your x value.  Plug in -8 to BDC, since both negatives are being multiplied, it would turn to a positive number which is 56, add 12 to get 68 as your final result for BDC.

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If mZ1 = (4x + 2)° and m/3 = (5x – 15)", what is the value of a?
posledela

Answer:

17

Step-by-step explanation:

angle one and angle three are equal to each other

so if you set the equations equal to each other

(4x+2)=( 5x-15)

move the 4x the right by subtracting it giving you 1x

then add 15 to 2 giving you 17

17=1x

8 0
3 years ago
How do you solve this equation
Nezavi [6.7K]

Remember the order of operations: Parentheses, Exponents, Multiplication/Division, Addition/Subtraction

Solve the expressions in parentheses first.

There is an expression within parentheses that is also in an expression within brackets. Solve that expression first:

6 - 10 = -4

The expression in brackets will now read:

[4 - 3(-4)]

Multiply 3(-4):

3 \cdot -4 = -12

[4 - (-12)]

Solve the expression:

4 - (-12) = 4 + 12 = 16

The problem should now look like this:

(8-2)^2 + \frac{1}{4}(16)

Solve the expression in parentheses that has an exponent:

8 - 2 = 6

(6)^2 = 6 \cdot 6 = 36

Solve the term with 1/4 as a coefficient:

\frac{1}{4}(16) = 4

The expression should now look like this:

36 + 4 =  \boxed{40}

The answer is 40.

8 0
3 years ago
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Svet_ta [14]
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Have a good day
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