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Alexus [3.1K]
3 years ago
15

Jack can make 6 paper boat canoes in 15 minutes. At that rate, how many paper boat canoes can he make in 40 minutes?

Mathematics
2 answers:
BigorU [14]3 years ago
8 0
The correct answer for the question above is
C.)16
natima [27]3 years ago
7 0

The answer is C-16

This is because if your set up a proportion

——=—— you put 6 over 15 like a fraction form and then = x over 40 x because you don’t know how many he can make in 40 mins and the 40 is right next to the 6 over 15 because we are trying to find how many paper boats we can make not the time therefore the answer is 16

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HELP WITH THESE QUESTIONS PART 2.
polet [3.4K]

Answer: (a) IV (b) positive (c) \frac{\pi}{4} (d) C (e) \sqrt{2}

<u>Step-by-step explanation:</u>

a) \frac{15\pi}{4} - \frac{8\pi}{4} = \frac{7\pi}{4}, which is located in Quadrant IV <em>per the Unit Circle.  </em>

b) sec is \frac{1}{cos}. Cos is the x-coordinate.  The x-coordinate inQuadrant IV is positive.

c) the reference angle is the angle from \frac{7\pi}{4} to 2π = \frac{\pi}{4}

d) since the angle is below the x-axis and the reference angle is\frac{\pi}{4}, then the angle is equal to -sec(\frac{\pi}{4})

e) sec = \frac{1}{cos}   ⇒   sec \frac{7\pi}{4} = \frac{2}{\sqrt{2} } = \frac{2}{\sqrt{2} }(\frac{\sqrt{2}} {\sqrt{2}}) = \frac{2\sqrt{2} }{2} = \sqrt{2}

**********************************************************

Answer: (a) \frac{3\pi}{2} (b) (0, -1) (c) A (d) -1

<u>Step-by-step explanation:</u>

a) \frac{11\pi}{2} - \frac{4\pi}{2} = \frac{7\pi}{2} - \frac{11\pi}{2} = \frac{3\pi}{2}

b) \frac{3\pi}{2} is on the Unit Circle at (0, -1)

c) sin = \frac{opposite}{hypotenuse} which equals \frac{y}{r} on the Unit Circle.

d) sin is the y-coordinate. sin (\frac{3\pi}{2}) = -1

6 0
3 years ago
Need help again asap giving brainliest
Liono4ka [1.6K]

Answer:

u forgot to put the question

4 0
3 years ago
WILL MEDAL help me if please
nordsb [41]
1. Use the FOIL method (x+9)(x+9)
First, outer, inner, last
x^{2} +9x+9x+81
Add your like terms
x^{2} +18x+81

2. When you add or subtract polynomials you add or subtract the like terms and then put them in order from largest to smallest exponents.

3. -5x(5 x^{3} +10 x^{2} -6x+3)

4. Since it is the perimeter, we add the 3 together.
(2 x^{2} +4x-3)+(-3 x^{2} -3)+(5x+19)
Add the like terms together:
2 x^{2} +(-3 x^{2} )=- x^{2}  \\ 4x+5x=9x \\ -8+(-3)+19=8
Put them in order of exponents
- x^{2} +9x+8

Hope this helps
8 0
3 years ago
HELP PICTURE SHOWN!!!!
laila [671]
I hate APEX!

A is right since the graph would start at 2 and go towards negative infinity

D is right both graphs approach +2 as thier highest values
6 0
3 years ago
Please help I’ll give brainliest
Minchanka [31]

Answer:

the answer which you have opted is perfect

6 0
3 years ago
Read 2 more answers
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