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babymother [125]
3 years ago
14

Find the length of the arc in red shown below

Mathematics
1 answer:
Svetllana [295]3 years ago
6 0

Answer:

3.92699

Step-by-step explanation:

3.92699

Length of arc. Not sure what "in terms of pi means..."

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Please answer number 29 ASAP
Effectus [21]

h = 5b - 2

\frac 1 2 b h= 36

b(5b - 2) = 72

5b^2 - 2b - 72 = 0

(b - 4)(5b + 18) = 0

b = 4 \textrm{ or }b = -18/5

We can rule out the negative length.

h = 72/b = 72/4 = 18

Answer: b=4, h=18


3 0
3 years ago
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Hurry, I need help and please explain
Zepler [3.9K]

Answer:

Question 18

=$3.33

Step-by-step explanation:

i)

26/100 x 4.5

=1.17

(the discount price)

ii)

$4.5-$1.17

=$3.33

5 0
3 years ago
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In a certain​ chemical, the ratio of zinc to copper is 4 to 13. A jar of the chemical contains 468 of copper. How many grams of
Gennadij [26K]

Answer:

The answer is 144

Step-by-step explanation:

7 0
2 years ago
How did he get this 1/2i ? I dont remember studying this definition in calc 1 neither calc 2!
Hitman42 [59]
The i in the denominator is missing in the second expression. It should be

\sin at=\dfrac{e^{iat}-e^{-iat}}{2i}

This follows from

e^{iat}=\cos at+i\sin at
e^{-iat}=\cos at-i\sin at
\implies e^{iat}-e^{-iat}=2i\sin at
\implies \sin at=\dfrac{e^{iat}-e^{-iat}}{2i}
8 0
3 years ago
Angle p and q are complementary angles if m p=(3x+2)^0 and mq=(3x-8)^0 find the value of x m p and m q
Mademuasel [1]

Answer:

x = 16

Angle p = 50°

Angle q = 40°

Step-by-step explanation:

"complementary" means the angles add up to 90°.

So,

3x+2 + 3x-8 =90

combine like terms.

6x - 6 = 90

add 6

6x = 96

divide by 6

x = 16

If x = 16,

then Angle p=

3x + 2

= 3(16) + 2

= 48 + 2

= 50

Angle p = 50°

And,

Angle q

= 3x - 8

= 3(16) - 8

= 48 - 8

= 40

Angle q = 40°

Check:

40° + 50° = 90°

7 0
2 years ago
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