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zlopas [31]
4 years ago
7

Really Need Help Quick Please! Must turn this in . Please show work. Brainliest answer will be awarded to quickest, correct answ

er, with shown work.
A slide 4.1 meters long is makes an angle 35 degrees with the ground. To the nearest of a meter, how far above the ground is the top of the slide?

Mathematics
1 answer:
Anestetic [448]4 years ago
5 0
X = slide height
sine (35) = opp / hypotenuse
sine (35) = x / 4.1

x = 0.57358 * 4.1
x = <span> <span> <span> 2.351678 </span> </span> </span> meters
Okay to the nearest meter it is 2




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The value of a collectible toy is increasing exponentially. The two points on the graph
shtirl [24]

The question is incomplete. Here is the complete question.

Part A

The value of a collectible toy is increasing exponentially. The two points on the graph show the toy's initial value and its value 3 weeks afterward.

Express the toy's value t, in dollars, as a function of time w in weeks after purchase.

Part B

Write an expression to represent the toy's value 10 days after purchase

Answer and Step-by-step explanation: An exponential function is of the form: y=ab^{x}

<u>Part</u> <u>A</u>

Translating to the question, the toy's value as a function of time is

t=ab^{w}

To determine constants a and b, we use points given by graph.

First, (0,5) to find a:

5=a.b^{0}

a = 5

Now, (3,10) to determine b:

10=5b^{3}

b=\sqrt[3]{2}

b = 1.26

The toy's value as a function of time in weeks is t=5.(1.26)^{w}

<u>Part</u> <u>B</u>

Since, the function is in weeks:

1 week = 7 days

w weeks = 10 days

w = \frac{10}{7}

Replacing w:

t=5.(1.26)^{w}

t=5.(1.26)^{10/7}

Expression that represents toy's value after 10 days is t=5.(1.26)^{10/7}.

8 0
3 years ago
Find the value of x thank you
coldgirl [10]

3x - 7 + 2x - 3 = 90

<=> 5x -10=90

<=> 5x = 100

<=> x=20

ok done. Thank to me :>

6 0
3 years ago
If you could explain and answer I’d appreciate
Cerrena [4.2K]

Answer:

-10

Step-by-step explanation:

5 is lower than 15 so the answer must be negative

if 15 minus 5 is 10

then 5 minus 15 has to be 10

4 0
4 years ago
Read 2 more answers
What is the slope of the line given by the function f (x) = 7 – 2x?
dem82 [27]

Answer:

I am not certain but I think it is -2 give that a try and hope it helps!

4 0
3 years ago
Are the vectors u=(2,3) and v=(-6, 4) orthogonal?
katen-ka-za [31]

We need to find dot products of 2 vectors:

u·v = x1*x2 + y1*y2

u·v = 2*(-6) + 3*4 = -12 + 12 = 0

Another way to write dot product u·v = |u|*|v|*cos α.

Because the do product = 0, we can write

 |u|*|v|*cos α = 0.

That means cos α = 0, and thus α=90⁰, so vectors v and u  are orthogonal.


6 0
3 years ago
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