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Inga [223]
3 years ago
12

Help me out please??

Mathematics
1 answer:
dsp733 years ago
6 0
I need
points to ask for help on math question so sorry
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Veseljchak [2.6K]
So .25 x 1000 is 250 -1000 =750 740 is the answer
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How do magnetic and electrical components of electromagnetic waves travel in relation to each other ?
olganol [36]

Answer:

at right angles. ...................electromagnetic waves is propagated when the electric and magnetic field component oscillate at right angles to each other. A changing electric field will produce a changing magnetic field and a changing magnetic field produces a changing electric field.

Step-by-step explanation:

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Which exponential function goes through the points (1, 16) and (4, 128)?
djyliett [7]

Answer:

Here is the complete question (attachment).

The function which represent the given points are f(x)=8(2)^{x}

Step-by-step explanation:

We know that a general exponential function is like,y=a(b)^{x}

We can find the answer by hit and trial method by plugging the values of (x,y) coordinates.

Here we are going to solve this with the above general formula.

So as the points are (1,16) then for x=1,\ y=16

Can be arranged in terms of the general equation.

ab^1=16...equation(1) and ab^4=128...equation(2)

a\times b=16, then\ a=\frac{16}{a}

Plugging the values in equation 2.

We have

\frac{16}{b} b^4=128,16\times b^3=128,b=\sqrt[3]{\frac{128}{16}} =\sqrt[3]{8}=2

Plugging b=2 in equation 1.

We have a=\frac{16}{b} =\frac{16}{2} =8

Comparing with the general equation of exponential a=8 and b=2

So the function which depicts the above points =y=8(2)^x

From theoption we have B as the correct answer.

7 0
4 years ago
Express the complex number in trigonometric form. -3i
Maksim231197 [3]
Remember to use trig form the general equation is: r(cos(angle) + i sin(angle))
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8 0
3 years ago
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A sweatshirt is $67.50, if
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Answer:

a. $3.36

b. $70.86

Step-by-step explanation:

5% of $67.50 is $3.36

$67.50 + $3.36 = $70.86

4 0
3 years ago
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