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SIZIF [17.4K]
3 years ago
13

Does anyone get this??

Mathematics
1 answer:
kirill115 [55]3 years ago
6 0

Answer:

The distance from the feet to the wall is 9 ft

Step-by-step explanation:

Using trig,

We must use cosine to find the missing side.

The equation is cos 60 = \frac{adjacent}{18}

The cosine of 60 is 1/2

So, we multiply 1/2 by 18

to get 9

Hope this helps!

Branliest would really be nice!

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How many kilometers are there in 9000000cm​
tekilochka [14]

QUESTION:- How many kilometers are there in 9000000cm.

ANSWER:-

1cm =  {10}^{ - 5} km \\ 9000000cm =9000000 \times  {10}^{ - 5} km \\ 9 \times  {10}^{6} cm = 9 \times  {10}^{6}  \times  {10}^{ - 5}  \\ 9 \times  {10}^{6} cm = 9 \times  {10}^{6 - 5}  \\ 9 \times  {10}^{6} cm = 90km

7 0
2 years ago
Read 2 more answers
Can you please help with this question about exponential equations?
RSB [31]

Since t represents the number of years passed since 2005, in 2005 we have t=0, and in 2015 we have t=10. Let P_J(y),P_D(y) represent the profits of Jones and Davis, respectively, at year y.

We have

P_J(2005) = 10(0.99)^0 = 10,\quad P_J(2015) = 10(0.99)^{10}\approx 9

P_D(2005) = 8(1.01)^0 = 8,\quad P_D(2015) = 8(1.01)^{10}\approx 9

Choosing the best company somehow depends on how much time you can wait: Jones start with a higher value (10 vs 8), but it has a descending trend, because the multiplicative factor 0.99^t goes to zero as t grows.

On the other hand, Davis starts with a smaller value, but 1.01^t tends to infinity as t grows.

So, if you need an immediate result, the most valuable company is Jones, otherwise you're certain can Davis will eventually become bigger.

More precisely, we have

8\cdot 1.01^t = 10\cdot 0.99^t \iff 0.8 = \left(\dfrac{0.99}{1.01}\right)^t \iff t\approx 11

So, after 11 years, Davis will overcome Jones.

3 0
3 years ago
Nine more than 3 times a number is the same as 6 less than twice the number
Ludmilka [50]

Answer:

Step-by-step explanation:

Let the number  = x

3x + 9 = 2x - 6  Looks like you are going to get something negative here.

Subtract 2x from both sides.

3x - 2x + 9 = 2x - 2x - 6

x + 9 = -6    

Subtract 9 from both sides.

x + 9 - 9 = - 6 - 9

Combine

x = - 15

7 0
3 years ago
What is the answer to this problem
Georgia [21]

The formula for volume of a cone = PI x r^2 x h/3

PI = 3.14

r = 8.5/2 = 4.25

h = 4.5

Volume = 3.14 x 4.25^2 x 4.5/3

Volume = 3.14 x 18.0625 x 1.5

Volume = 85.074375

Rounded to the nearest hundredth = 85.07 cubic cm.

4 0
3 years ago
Which is equivalent to 3x/x+5 - x-5/x
oee [108]

Answer:

B. \frac{2x^2+25}{x(x+5)}

Step-by-step explanation:

x(\frac{3x}{x+5})-(x+5)(\frac{x-5}{x})

= \frac{3x^2}{x(x+5)} - \frac{(x-5)(x+5)}{x(x+5)} = \frac{3x^2-(x-5)(x+5)}{x(x+5)}

= \frac{3x^2-(x^2-25)}{x(x+5)}

= \frac{2x^2+25}{x(x+5)}

7 0
3 years ago
Read 2 more answers
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