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Mice21 [21]
3 years ago
15

Laws of sines!!!!! Find C round to the nearest tenth!!!!! helpppp!!!!!​

Mathematics
1 answer:
Furkat [3]3 years ago
3 0

Answer:

c =9.7 cm

Step-by-step explanation:

Law of sines:

sin (82) / c = sin(55) / 8

0.9903 / c = 0.8192 / 8

c = 0.9903 * 8 / 0.8192

c =9.7 cm

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Which two equations would be most appropriately solved by using the zero product property? Select each correct answer.
ss7ja [257]

Answer:

1) (x + 4)(x - ½) = 0

4x² + 16x = 0

2) 0.25x² + 0.8x - 8 = 0

3x² - 4x = 15

Step-by-step explanation:

1) (x + 4)(x - ½) = 0

x = -4, ½

4x² + 16x = 0

4x(x + 4) = 0

x = 0, -4

2) (x - 6)(x + 9) = 0

x = 6, -9

(x - 1)² = 4

(x - 1)² - (2)² = 0

(x - 1 - 2)(x - 1 + 2) = 0

(x - 3)(x + 1) = 0

x = 3, -1

These two are easier to solve using product = 0 property, while the other two would be easier using the quadratic formula

8 0
3 years ago
For f(x)=1/x^2-3
igomit [66]

For f(x)=1/x^2-3

Find  

A) f(3)

B) f(2-h)

If f(x)=1/x^2-3, then f(3) = 1 / 3^2 - 3.  The exponentiation here must be carried out first:  f(3) = 1/9 - 3.  Then f(3) = 1/9 - 27/9 = -26/9

If f(x)=1/x^2-3, then f(2-h) = 1 / [2-h]^2 - 3.  This result may be left as is or expanded.  In expanded form, we have:

                     1

f(2-h) = ------------------ - 3

              4-4h +h^2

5 0
3 years ago
Simplify x + 6.2 + 8.5.<br><br> 6.2x + 8.5<br> x + 14.7<br> 14.7x
Sunny_sXe [5.5K]

Answer:

x + 14.7

Step-by-step explanation:

x + 6.2 + 8.5.

Combine like terms

x + 14.7

5 0
2 years ago
Read 2 more answers
What are the correct answers to this geometry question?
Maru [420]

Answer:

Ti = 5

AT = 6

Kt = 10

Ai = 11

ke = 19

ae = 15

Step-by-step explanation:

6 0
2 years ago
Use the result (a+b)²=a²+2ab+b² to find the value of 49²+98+1
Leto [7]

Answer:

2500

Step-by-step explanation:

a² + 2ab + b²

49² + 98 + 1

Comparing terms

a²= 49²

a= 49

2ab = 98

2× 49 × b = 98

98b = 98

b= 98/98

b = 1

or

b²= 1

b=√1

b= 1

a=49 and b= 1

Hence (a+b)²= (49+1)²

50²= 2500

5 0
2 years ago
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