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3 years ago

6

driving to and from the butterfly garden took 45 minutes each way. Students spent 3 hours in the garden and 30 minutes eating lu

nch. If the groups left school at 9:00a.m. what time did they get back

1 answer:

Setler [38]3 years ago

3 0

45 min add 45 min equals 1:30 add 3 3:30 add 30 equals they got vack at 1:00pm

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

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3 years ago

For a given input value v, the function f outputs a value u to satisfy the following equation.

tigry1 [53]

Answer: -4v+9

Step-by-step explanation:

u - 5 = -4(v - 1)

u - 5 = -4v + 4

+5 +5

u = -4v + 9

8 0

4 years ago

"Which shapes are topologically equivalent to Choice 2?

DanielleElmas [232]

<span>Which shapes are topologically equivalent to Choice 2? D. NONE

Choice 1, 3, and 4 are topologically equivalent. These figures each have two holes.

Choice 2 has three holes and is different from the other.

Topologically equivalent figures are figures that can be rearranged to form another shape without breaking.</span>

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3 years ago

Ella and her children went into a bakery and where they sell cookies for $0.50 each and brownies for $2.25 each. Ella has $15 to

matrenka [14]

Answer: 5 brownies

Step-by-step explanation:

cookies = 5 x $0.50 = $2.5

$15 - $2.5 = $12.5

$12.5 divided by $2.25 = $5.555

so at the most ella can buy 5 brownies if she buys 5 cookies

5 0

3 years ago

Read 2 more answers

Please help! I will give Brainliest!

lubasha [3.4K]

Answer:

a

Step-by-step explanation:

3/15 simplifies to 1/5

8 0

3 years ago

Read 2 more answers