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3 years ago

Could someone help me?

Mathematics

1 answer:

Lady_Fox [76]3 years ago

8 0

Step-by-step explanation:

The intercepted arc is twice the measure of the inscribed angle so if the inscribed angle BEC is 50°, then the measure of the arc BC is 100°.

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1. The Pie Shop sells pies cut into 4 slices. Tom is buying pies for his kids and

aleksklad [387]

Answer:

1 whole pie and 6 slices

Step-by-step explanation:

Because you're dividing each slices into two, then you're multiplying the number of slices by 2 and you get 8 slices for one pie. So that feeds the 8 friends. Then you should just buy 6 extra slices for his kids.

4 0

4 years ago

Given that x=3sinθ-2 and y=3cosθ+4.Show that (x+2)²+ (y-4)²=9

asambeis [7]

Answer:

First, plug-in x and y as 3sinθ-2 and 3cosθ+4 into the equation, respectively:

$((3\sin (\theta)-2)+2)^2 + ((3\cos (\theta)+4)-4)^2 = 9$

Then, +2 and -2 cancel out and +4 and -4 cancel out as well, leaving you with:

$(3\sin(\theta))^2+(3\cos(\theta))^2=9$

We can factor out 3^2 = 9 from both equations:

$9(\sin(\theta)^2+cos(\theta)^2) = 9$

We know from a trigonometric identity that $\sin(\theta)^2+cos(\theta)^2 = 1$ , meaning we can reduce the equation to:

$9(1) = 9$

$9=9$

And therefore, we have shown that (x+2)^2 + (y-4)^2 = 9, if x=3sinθ-2 and y=3cosθ+4.

Hope this helped you.

7 0

3 years ago

Which of the following equations represents the line with a slope of -7/4 and a y-intercept of -11?

san4es73 [151]

Answer:

y = -7/4x - 11

Step-by-step explanation:

formula is y = mx + b

m is the slope

b is the y intercept

y = -7/4x -11

which is the first one

3 0

2 years ago

Miguel has $20. He spends $6.25 on a movie ticket, $3.70 for snacks, and $1.25 for bus fare each way.

Harrizon [31]

20-6.25-3.7-1.25-1.25= $7.50
Has has $7.50 left over.

7 0

3 years ago

Rectangle has a perimeter of 80 m at a length of 27 m what is the width

loris [4]

Answer:

2(l+w)

80=2(27+w)

80/2=27+w

40=27+w

40-27=w

13=width

8 0

3 years ago