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Goryan [66]
4 years ago
12

NEED HELP PLEASE don't know how to solve

Mathematics
1 answer:
amid [387]4 years ago
3 0
The angle formed by the intersection of tangent and secant outside the circle equals half the difference of the <span>intercepted arcs.

</span>\frac{10x+20-80}{2}=2x+15 \\ 10x-60=2(2x+15) \\ 10x-60= 4x+30 \\ 10x-4x=30+60 \\ 6x=90 \\ x=90/6 \\ x=15<span>
</span>
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Triple 3 and then add double 8
Alexandra [31]
6+6+6+8+8=31 that's the answer to your problem
8 0
3 years ago
Read 2 more answers
Which equation of the line that is parallel to the line 5x + 2y =12 and passes through point -2,4
Gnesinka [82]

Answer:

The equation of the line would be y = -5/2x - 1

Step-by-step explanation:

In order to find the equation of the line, we first need to find the slope of the original line. We can do that by solving for y.

5x + 2y = 12

2y = -5x + 12

y = -5/2x + 6

Now that we have a slope of -5/2, we know the new slope will be the same since parallel lines have the same slope. So we can use it along with the point in point-slope form to find the equation.

y - y1 = m(x - x1)

y - 4 = -5/2(x + 2)

y - 4 = -5/2x - 5

y = -5/2x - 1

3 0
3 years ago
At a college, 71% of courses have final exams and 45% of courses require research papers. Suppose that 26% of courses have a res
Degger [83]

Answer:

.9 or 90%

.1 or 10%

Step-by-step explanation:

E= Exam

P=Paper

E= .71

P= .45

E∩P=.26

A.) E∪P=?

E∪P= E+P-E∩P

.71+.45-.26= .9

B.) E'∩P' = (E∪P)'

(E∪P)' = 1-.9 = .1

3 0
3 years ago
A deli sells 2 hot dogs for $2.50. What is the constant of proportionality of dollars per hot dog?
attashe74 [19]

Answer:

$1.25 per hot dog

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Just determine whether its positive or negative please
NeX [460]
9. negative 10. negative 11. negative 12.negative 13.negative 14. positive 15. positive 16. negative 17. negative 18. positive
3 0
2 years ago
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