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LUCKY_DIMON [66]
3 years ago
6

Please helpme how is this: b+8= -4

Mathematics
2 answers:
mr_godi [17]3 years ago
6 0
-12. Subtract 8 from both sides.
Y_Kistochka [10]3 years ago
5 0
B + 8 = -4
b = -4 - 8
-4 - 8 = -12

-12 + 8 = -4
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Help me solve this problem please
lara31 [8.8K]

Answer:

CD = 45

Step-by-step explanation:

CE = 180

( x + 6 ) + ( 4x - 21 ) = 180

5x - 15 = 180

5x = 195

x = 39

substitute x in CD

CD = x + 6

CD = 39 + 6

CD = 45

5 0
3 years ago
Solving simultaneous equations with one quadratic, x^2+y^2=16 and y=x+3
Svetlanka [38]
If y=x+3, then in the first equation you have

x^2+(x+3)^2=x^2+(x^2+6x+9)=2x^2+6x+9=16

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y=-\dfrac32\pm\dfrac{\sqrt{23}}2+3=\dfrac32\pm\dfrac{\sqrt{23}}2

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(x,y)=\left(-\dfrac32+\dfrac{\sqrt{23}}2,\dfrac32+\dfrac{\sqrt{23}}2\right)
(x,y)=\left(-\dfrac32-\dfrac{\sqrt{23}}2,\dfrac32-\dfrac{\sqrt{23}}2\right)
7 0
3 years ago
If there is a 117 chance of winning a game, which best describes the probability of winning the game? (HOW DID YOU GET YOUR ANSW
siniylev [52]

Answer:

D. Certain

Step-by-step explanation:

also please answer my chem question

3 0
3 years ago
ABCDE is reflected across the x-axis to form A'B'C'D'E'. Then A'B'C'D'E' is dilated by a scale factor of 0.5 about D' to form po
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Scale factor: f=0.5
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5 0
4 years ago
Read 2 more answers
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alukav5142 [94]

Answer:

Step-by-step explanation:

2x + y = - 2

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x = -2-5

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4 0
4 years ago
Read 2 more answers
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