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pogonyaev
2 years ago
15

Where are the zeros for f(x) = 3 sin 2x on the interval [0, 21)?

Mathematics
1 answer:
garri49 [273]2 years ago
8 0

Answer:

0 i think it it is 0

Step-by-step explanation:

interval 0 to 21

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Write the standard form of the equation of the line that passes through (-2, -3) and (2,-5).
Naily [24]

Answer:

y= -1/2x-4

Step-by-step explanation:

By standard form, I'm assuming you mean slope-intercept form, which is y=mx+b. First, we need to find m, or the slope. To do this, we need to plug it into this equation: m= y2-y1/x2-x1. We can rewrite this with our two points, so we make it into m= -5+3/2+2. I did plus signs because if you subtract a negative number from a number, it has the same effect as addition does. Now, we have m= -2/4, which we can simplify to -1/2. Now, we have y=-1/2x+?. Now, let's plug in the numbers in slope-intercept form. I'll choose the ordered pair (-2, -3) for this example. Now that I've plugged the numbers in y=mx+b form (slope-intercept form), we have -3=(-1/2⋅-2)+b. Now, we solve it. First, we do the problem in the parenthesis, from that, we get 1. Now, we have -3=1+b, let's subtract 1 from both sides. Now, we have -4=b. That means our y-intercept is -4. Let's plug this back in the equation. We get y=-1/2x-4. I hope this helps!

5 0
3 years ago
A team is excavating an archeological site. The original plan was to excavate a rectangular area 35 ft long
nikitadnepr [17]

Answer:

Part 1) The length of the new rectangle is 87.5\ ft

Part 2) The area of the new rectangle is 4,375\ ft^{2}

Step-by-step explanation:

we know that

If two rectangles are similar, then the ratio of its corresponding sides is proportional

step 1

Find the length of the new rectangle

Let

L-----> the length of the new rectangle

\frac{50}{20}=\frac{L}{35}\\ \\ L=50*35/20\\ \\L=87.5\ ft

step 2

Find the area of the new rectangle

we know that

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A=LW

we have

L=87.5\ ft

W=50\ ft

substitute

A=(87.5)(50)=4,375\ ft^{2}

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3 years ago
How many times does 48 go into 80
anastassius [24]
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2 years ago
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Nookie1986 [14]
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3 years ago
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Answer:

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Step-by-step explanation:

<em><u>hope it helps</u></em>

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2 years ago
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