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katovenus [111]
3 years ago
15

Please help,,, will give brainliest and five stars to correct answer

Mathematics
2 answers:
Zigmanuir [339]3 years ago
4 0
Second option is the correct one.
-24, -96, -384, -1536, -6144, -24576
ratelena [41]3 years ago
4 0
A1=-6
So, your first term will start with -6. That automatically gets rid of answers
#1 and #2.

an = 4 × an-1
This means that each subsequent term will be the previous number multiplied by 4.

-6 x 4 =
-24 ×4 =
-96 x 4 =
-384 × 4 =
-1536 x 4 =
-6144

The answer would be #4. BUT:

Here's the weird thing: this is only right if it's literally telling us that the first term, "a1", has a value of -6. The term is fixed looking at it this way, which is what I based my answer #4 on. IMO, it seems like it's assigning a fixed value.

However, the other way to look at it is "a1" defined as a variable.
If a1 is a variable, rather than being defined as the actual first term, then logically, the same math can be applied to answer #2, just starting with -24. This means the answer would then be #2.

So, its either #2 or #4 depending on whether "a1" is defined as a variable or if it's fixed as the actual value for the first term, respectively.

Kind of a poorly written question...unless there's some info missing that may help to steer us in the right direction.

Hope this helps!
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If the given values in a right triangle are cos A =
Vlad1618 [11]
See the picture attached to better understand the problem

we know that
in the right triangle ABC
cos A=AC/AB
cos A=1/3
so
1/3=AC/AB----->AB=3*AC-----> square----> AB²=9*AC²---->  equation 1

applying the Pythagoras Theorem
BC²+AC²=AB²-----> 2²+AC²=AB²---> 4+AC²=AB²----> equation 2

substitute equation 1 in equation 2
4+AC²=9*AC²----> 8*AC²=4----> AC²=1/2----> AC=√2/2
so
AB²=9*AC²----> AB²=9*(√2/2)²----> AB=(3√2)/2

the answer is
the hypotenuse is (3√2)/2

5 0
3 years ago
Please someone smart help mehh .^. (Asap)
jarptica [38.1K]
The answer is B. 37/56
8 0
2 years ago
Read 2 more answers
The population p (in millions) of Italy from 1990 through 2008 can be approximated by the model p=56.8e^o.oo15t , where t repres
dimulka [17.4K]

As we already have the model that describes the change of the population in Italy in terms of the years that have elapsed, we only have to replace the conditions that are requested in that equation.

Therefore to find the population of Italy in the year 2000 (t = 10 years)  substitute t = 10 in the equation and have:

p = 56.8e^{0.0015*10}\\

p=57.6584 million people

To find the population of Italy in 2008 (t = 18 years)

substitute t = 18 in the equation and have:

p=56.8e ^{0.0015*18}\\

p=58.3545 million people


To predict the population in Italy for 2015 and 2020 with this model, we substitute in the equation t = 25 and t = 30

t = 25

p=56.8e^{0.0015*25}

p=58.9704 million people


 t = 30

p=56.8e^{0.0015*30}

p=59.4144 million people

8 0
2 years ago
If f(x)=3|x-2|, what is f(5.9)? a: 9 b: 10 c: 11 d: 12
Mice21 [21]
|a|=  \left\{\begin{array}{ccc}a&if&a\geq0\\-a&if&a \ \textless \  0\end{array}\right\\\\f(x)=3|x-2|\\\\f(5.9)=3|5.9-2|=3|3.9|=3\cdot3.9=11.7
7 0
3 years ago
Read 2 more answers
The arm of a steel crane is 62 feet long. When it is fully extended, the crane arm forms a 30 degree angle with a line parallel
yuradex [85]

Answer: The top of the Crane is 31 feet above the ground.

Step-by-step explanation:

When it is fully extended, the crane arm forms a 30 degree angle with a line parallel to the ground. This means that a right angle triangle is formed. The length of the Crane's arm represents the hypotenuse. The horizontal distance represents the adjacent side of the right angle triangle. The distance, h of the top of the Crane from the ground represents the opposite side of the right angle triangle.

To determine h, we would apply

the Sine trigonometric ratio.

Sin θ, = opposite side/hypotenuse. Therefore,

Sin 30 = h/62

h = 62Sin30

h = 62 × 0.5

h = 31 feet

3 0
3 years ago
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