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Over [174]
3 years ago
9

What is the basic unit for length in the si unit

Mathematics
1 answer:
klio [65]3 years ago
8 0

Answer: i think its metre

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6a2 + 8a - 25 = -3<br> Using the Quadratic Formula
drek231 [11]

Answer:

6

2

+

8

−

2

5

=

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3

6a^{2}+8a-25=-3

6

2

+

8

−

2

5

−

(

−

3

)

=

0

Step-by-step explanation:

0/3

4 0
2 years ago
A suspension bridge has two main towers of equal height. A visitor on a tour ship
Scilla [17]

Answer:

The Height of the tower is 188.67 ft

Step-by-step explanation:

Given as :

The angle of elevation to tower = 15°

The distance travel closer to tower the elevation changes to 42° = 497 ft

Now, Let the of height of tower = h  ft

The distance between 42°  and  foot of tower = x  ft

So, The distance between 15° and  foot of tower =  ( x + 497 )  ft

So, From figure :

<u>In Δ ABC </u>

Tan 42° = \frac{perpendicular}{base}

Or , Tan 42° = \frac{AB}{BC}

Or,  0.900 = \frac{h}{x}

∴ h = 0.900 x

Again :

<u>In Δ ABD </u>

Tan 15° = \frac{perpendicular}{base}

Or , Tan 15° = \frac{AB}{BD}

Or,  0.267 = \frac{h}{( x + 497 )}

Or,  h = ( x + 497 ) × 0.267

So, from above two eq  :

     0.900 x =  ( x + 497 ) × 0.267  

Or, 0.900 x - 0.267 x =  497  × 0.267  

So, 0.633 x = 132.699

∴               x = \frac{132.699}{0.633}

Or,            x = 209.63  ft

So, The height of tower = h = 0.900 × 209.63

Or,                                      h = 188.67 ft

Hence The Height of the tower is 188.67 ft    Answer

3 0
3 years ago
Estimate the product of m and n. Using complete sentences, explain how you got your estimate.
Aliun [14]
Hi there.

Each line on the graph is equivalent to: 1/6
SO we can see that n is graphed at: 1 1/6 and m is graphed at: 2 4/6

To estimate the product, let's convert each fraction into an improper fraction.
n = 1 1/6 = 7/6
m = 2 4/6 = 16/6 

Multiply the improper fractions. 
7/6(16/6) = 112/36 = 3 4/16 = 3 1/9 (Simplified) 

So 3 1/9 is your answer.  
5 0
3 years ago
Read 2 more answers
H ( x ) = f ( x ) + g ( x )
shutvik [7]

12349936452648631803

3 0
2 years ago
I need help plz 8th grade math
Naddika [18.5K]

Answer:

1.25 percent

2.   25 percent

3. 65 percent

4. no

8 0
3 years ago
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