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3 years ago

Please help ASAP! Algebra 2

Mathematics

1 answer:

puteri [66]3 years ago

5 0

A=9000(.9)^t
P=50(1/2)^t and
V=18000(.78)^t
are exponential decay
the rest are growth

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How do I go about solving sin π/4 + cos π/4

Viktor [21]

Hello Shakyiagrooms. We know:

$\sin(\frac{\pi}{4}) = \frac{1}{\sqrt{2}}$
AND
$\cos(\frac{\pi}{4}) = \frac{1}{\sqrt{2}}$

By knowing this, we can set the problem up as the following:
$\frac{1}{\sqrt{2}} + \frac{1}{\sqrt{2}}$
Now we can add them since they have the same denominators:
$\frac{1}{\sqrt{2}} +\frac{1}{\sqrt{2}} = \frac{2}{\sqrt{2}}$
Now we have to rationalize the radical denominator $\frac{2}{\sqrt{2}}$ . We do this by multiplying $\frac{2}{\sqrt{2}}$ by $\frac{\sqrt{2}}{\sqrt{2}}$

$\frac{2}{\sqrt{2}}$
$\frac{2}{\sqrt{2}} \times \frac{\sqrt{2}}{\sqrt{2}} = \frac{2\sqrt{2}}{\sqrt{4}}$
$\frac{2\sqrt{2}}{\sqrt{4}} = \frac{2\sqrt{2}}{2} = \sqrt{2}$
So our answer "Drum Roll Please" =
$\sin(\frac{\pi}{4}) + \cos(\frac{\pi}{4}) = \sqrt{2}$

8 0

3 years ago

If you apply the changes below to the absolute value parent function, f(x) = |x|, what is the equation of the new function?Shift

Serjik [45]

Answer: C

Step-by-step explanation:

The general form of the equation is: g(x) = a|x - h| + k ;

"a" represents the vertical stretch (or shrink)
"h" represents the x-coordinate of the vertex (left and right)
"k" represents the y-coordinate of the vertex (up and down)

4 units left means h = 4

2 units up means k = 2

--> g(x) = |x - 4| + 2

8 0

3 years ago

Read 2 more answers

a musician believes that listening to classical music affects mood determine if two-tailed or one-tailed

kramer

Answer:

I think one tailed correct me if im wrong

8 0

3 years ago

Need help with geometry question

shtirl [24]

Answer:
X=17
Angle K=110 degrees
Angle L= 70 degrees
Angle M= 110 degrees
Angle N= 70 degrees

Explanation:
6x + 8 + 2x +36=180
8x + 44= 180
8x = 136
X = 17

6(17)+8
102+8
110

2(17)+ 36
34+36
70

110 + ? =180
180-110= 70

70 + ?=180
180-70=110

5 0

2 years ago

At a hockey game a vender sold a combined total of 105 sodas and hot dogs. The number of sodas sold was 39 more than the number

yKpoI14uk [10]

Answer:

Hot dog sold = 33

Sodas Sold = 72

Step-by-step explanation:

Given:

At a hockey game a vender sold a combined total of 105 sodas and hot dogs. The number of sodas sold was 39 more than the number of hot dogs sold

To Find:

Number of soda/hot dog sold

Solve:

h + ( 39 + h ) = 105

h + 39 + h = 105

2h + 39 = 105

h + 19.5 = 52.5

h = 52.5 - 19.5

This as a system does not use any inequality. "39 more than" means, +39.

h = 33 meaning d= 72

Add to check Answer:

33 + 72 = 105

Thus,

Hot dog sold = 33

Sodas Sold = 72

Kavinsky

3 0

2 years ago