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earnstyle [38]
3 years ago
15

Write the factors of a2-b2.​

Mathematics
1 answer:
nignag [31]3 years ago
3 0
Answer:
(a + b) and (a - b)
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X = 2y - 4<br> 7x + 5y = -66
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Select the best description of exponential equation
serious [3.7K]
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I need help asap:
lisov135 [29]

Answer:

79.4° to the nearest tenth of a degree

Step-by-step explanation:

You are trying to find the angle opposite the side of length 27.

Let the length of that  side be c and a and b be the lengths of the other two sides and let C be the measure of the angle you are looking for

Using the law of cosines

c = \sqrt{a^{2}  + b^{2}  - 2abcos C}

27 = \sqrt{19^{2}  + 23^{2} - 2(19)(23)cosC}

27^{2}  = 19^{2}  + 23^{2}  - 2(19)(23)cosC

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5 0
3 years ago
If a population of 200 squirrels has a 10 percent growth rate each year, how many individuals will there be in the population af
Anarel [89]
For this case we have a function of the form:
 y = A * (b) ^ t
 Where,
 A: initial amount
 b: growth rate
 t: time
 Substituting values we have:
 y = 200 * (1.10) ^ (t)
 For 3 years we have:
 y = 200 * (1.10) ^ (3)
 y = 266.2
 Rounding off we have:
 y = 266
 Answer:
 
there will be 266 squirrels in the population after 3 years
4 0
3 years ago
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