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LuckyWell [14K]
3 years ago
14

Help me please for 12 D is 27

Mathematics
1 answer:
schepotkina [342]3 years ago
6 0

Answer:

6

Step-by-step explanation:

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Estimate the limit.
Bezzdna [24]

Answer:

a. 0.25

Step-by-step explanation:

The given expression is

\lim_{x \to 2} \frac{x-2}{x^2-4}

Factor the denominator using difference of two squares.

\lim_{x \to 2} \frac{x-2}{(x-2)(x+2)}

Cancel out common factors;

\lim_{x \to 2} \frac{1}{(x+2)}

We plug in 2 to get

\lim_{x \to 2} \frac{1}{(x+2)}=\frac{1}{2+2}

\lim_{x \to 2} \frac{1}{(x+2)}=\frac{1}{4}=0.25

3 0
3 years ago
Read 2 more answers
Write the expression as either the sine, cosine, or tangent of a single angle. (2 points)
sattari [20]

Answer:

cos(π/3)cos(π/5) + sin(π/3)sin(π/5) = cos(2π/15)

Step-by-step explanation:

We will make use of trig identities to solve this. Here are some common trig identities.

Cos (A + B) = cosAcosB – sinAsinB

Cos (A – B) = cosAcosB + sinAsinB

Sin (A + B) = sinAcosB + sinBcosA

Sin (A – B) = sinAcosB – sinBcosA

Given cos(π/3)cos(π/5) + sin(π/3)sin(π/5) if we let A = π/3 and B = π/5, it reduces to

cosAcosB + sinAsinB and we know that

cosAcosB + sinAsinB = cos(A – B). Therefore,

cos(π/3)cos(π/5) + sin(π/3)sin(π/5) = cos(π/3 – π/5) = cos(2π/15)

8 0
3 years ago
A child 4.5 feet tall cast a 6 foot shadow a nearby statue casts a 12 foot shadow what is the height of the statue
neonofarm [45]

Answer: I believe it would be 9 feet tall.

Step-by-step explanation:

The statues shadow is 2 times larger than the childs shadow so you would multipy the childs height by 2

8 0
3 years ago
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Tabitha found the side length of a cube with a volume of 512 cubic centimeters using the following steps. Cube V = s3
Alja [10]

Answer:

the answer is 3cm

HOPE THIS WORKED

Step-by-step explanation:

I JUST ANSWERED THIS ON EDG

5 0
3 years ago
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5(4x-4)+2(13-5x)-3(3x+4)=-3 solve the equation. heLP
adell [148]

The answer is x=3

Im sure of it.

6 0
3 years ago
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