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Dennis_Churaev [7]

2 years ago

5

Pls pls help it's urgent. Due in another few minutes!!

1 answer:

MAXImum [283]2 years ago

5 0

Answer:

5

Step-by-step explanation:

none of the above are true

1. intersect at x=45

so y=sqrt(2)

2. y=cscx period is doubled y=tanx

3. not the same

4. no local maximum of y=secx

minimum point of y=sinx is -1

so none of the above are true

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If AC=5cm, BC=12cm, and m AC= 40 degrees what is the radius of the circumscribed circle

melamori03 [73]

Let's assume they meant C=40 degrees. With an angle like that they're asking for approximation; we'll oblige.

The circumradius is the product of the triangle sides divided by four times the area.

Here we have remaining side given by the Law of Cosines.

$AB^2 = AC^2 + BC^2 - 2\ AC \ BC \cos C$

$AB^2 = AC^2 + BC^2 - 2 AC \ AB \cos C = 5^2 + 12^2 - 2(5)(12) \cos 40^\circ$

$AB = \sqrt{ 169 - 120 \cos 40 ^\circ} \approx 8.77921789$

The area is $\frac 1 2\ AC \ BC \sin C = \frac 1 2 (5)(12) \sin 40^\circ \approx 19.283628$

The circumradius is $r \approx \dfrac{(5)(12)(8.77921789 )}{ 4 (19.283628) } = 6.829019329$

5 0

3 years ago

Maggie is training to run a 6 mile race. Her training program has her increase her weekly long run each week. This week she ran

Korvikt [17]

Answer:

Maggie will run 5.85 miles next week.

Step-by-step explanation:

Given:

Maggie is training to run a 6 mile race.

This week Maggie ran = 4.5 miles

Also Given:

Next week she will run 1.3 times as far as she did this week.

We need to distance she will run next week.

Now we know Next week she will run 1.3 times as far as she did this week.

It means Distance to be run next week will be equal to 1.3 times distance she ran this week.

Framing in equation form we get;

distance she will run next week = $1.3\times 4.5 = 5.85 \ miles$

Hence Maggie will run 5.85 miles next week.

6 0

3 years ago

Pls help. <br> Question above

GrogVix [38]

What is this type of math called please and what year/grade if you don’t mind me asking so I can be prepared

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Answer:

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