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IRINA_888 [86]
3 years ago
9

Solve for x, y=3x^2 -x+1​

Mathematics
1 answer:
galben [10]3 years ago
7 0
A: 5x-1=y
(=) x=(y+1)/5
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If cos theta is -5/13 and sin θ < 0, what is tan θ ?
tensa zangetsu [6.8K]
Take the right angled triangle  with sides 13, 12 and 5. sine theta will be 12/13

When sin theta < 0 and cos theta < 0  we are in the  third  quadrant  so sin theta will be -12/13

tan theta = sin theta / cos theta  = -5/13 /  -12/13   = -5*13 / -12*13 =  5/12
 
7 0
3 years ago
Can you help and tell me how you got the answer
geniusboy [140]
Y= -2X
Y= -2•3
Y= -6
X=3

Y= -2X
Y= -2•(-3)
Y=6
X= -3

Answer is y= -2X
8 0
3 years ago
Find out the value of x in the following polygon ​with the formula
Anna35 [415]

Answer:

50

Step-by-step explanation:

ABCD is quadrilateral. Sum of all the angles in a quadrilateral is 360. This means angle ADC will be 130.

ADE is a straight line. Angle ADC and angle CDE should sum up to 180. From here we can infer that angle CDE=x is 50

6 0
3 years ago
Send help my way please y'all so smart
Fofino [41]
Graph A is the correct one
3 0
2 years ago
Read 2 more answers
Find mZCBA.<br> A<br> B<br> 49°<br> с
vivado [14]

AB=BC=>\angle A=\angle C=49а\\\angle CBA=180а-\angle A-\angle C=180а-49а-49а=82а

4 0
2 years ago
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