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vivado [14]
4 years ago
5

Find f(-2) for f(x) = 2*3^x

Mathematics
2 answers:
andrezito [222]4 years ago
7 0

Answer:

2/9 so B

Step-by-step explanation:

apex

denis-greek [22]4 years ago
4 0

f(x) = 2 \cdot 3^x

f(-2) = 2 \cdot 3^{-2} = 2 \cdot \dfrac{1}{3^2} = \dfrac 2 9

Answer: B

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3+3+3<br> Please Help....
NeX [460]

Answer:

9

Step-by-step explanation:

7 0
3 years ago
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An ant travels at speed of 3 inches per second. How many feet will the ant travel in 2 hours?
GarryVolchara [31]

64,800 inches in 2 hours I think

6 0
3 years ago
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Combine like terms to create an equivalent expression 3.4 - 2.8d + 2.8d - 1.3
zalisa [80]

Answer:

3.4 - 2.8d + 2.8d - 1.3 = 2.1

Step-by-step explanation:

The given expression is 3.4 -2.8d + 2.8d -1.3

Let's see the definition of like terms.

Like terms are the terms having the same variable and the same exponents.

Examples: -3xy, 2xy  and 4y, 5y and -3, 2.

Now let's identify the like terms from the given expression.

3.4 -2.8d + 2.8d -1.3

Here the like terms are -2.8d, +2.8d and 3.4, -1.3

3.4 -2.8d + 2.8d -1.3

= -2.8d + 2.8d + 3.4 - 1.3            [-2.8d + 2.8d = 0] and 3.4 -1.3 = 2.1

= 0 + 2.1

=2.1

The answer is 2.1

6 0
3 years ago
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Will mark BRAINLIEST!!!
svlad2 [7]

Answer:

answer choice c is correct

:)

hope that helped. <3

<em>bye now! </em>

<em>have a nice day too <3.</em><u><em> k bye</em></u>

7 0
3 years ago
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Consider a triangle ABC like the one below. Suppose that a = 31, b = 23, and c = 20. (The figure is not drawn to scale.) Solve t
krok68 [10]

The solution to the triangle is A = 92.0, B = 47.9 and C = 40.1

<h3>How to solve the triangle?</h3>

The figure is not given;

However, the question can still be solved without it

The given parameters are:

a = 31, b = 23, and c = 20

Calculate angle A using the following law of cosine

a² = b² + c² - 2bc * cos(A)

So, we have:

31² = 23² + 20² - 2 * 23 * 20 * cos(A)

Evaluate

961 = 929 - 920 * cos(A)

Subtract 929 from both sides

32 =- 920 * cos(A)

Divide both sides by -920

cos(A) = -0.0348

Take the arc cos of both sides

A = 92.0

Calculate angle B using the following law of sine

a/sin(A) = b/sin(B)

So, we have:

31/sin(92) = 23/sin(B)

This gives

31.0189 = 23/sin(B)

Rewrite as:

sin(B) =23/31.0189

Evaluate

sin(B) =0.7415

Take arc sin of both sides

B = 47.9

Calculate angle C using:

C = 180 - 92.0 - 47.9

Evaluate

C = 40.1

Hence, the solution to the triangle is A = 92.0, B = 47.9 and C = 40.1

Read more about triangles at:

brainly.com/question/2217700

#SPJ1

6 0
2 years ago
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