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astra-53 [7]
3 years ago
12

Help. Answer this please!

Mathematics
1 answer:
Wewaii [24]3 years ago
7 0

Answer:

b

Step-by-step explanation:

hard to explain right here sorry man

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Given the functions a(x) = 3x - 12 and b(x) = x-9, solve a[b(x)].
Thepotemich [5.8K]

Answer:

Step-by-step explanation:

hello :

a(x) = 3x - 12 and b(x) = x-9, so

a[b(x)]=a(x-9) =3(x-9)-12

a[b(x)]=3x-9-12

a[b(x)]=3x+21

5 0
2 years ago
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lorasvet [3.4K]

-5^9 ; (5^3)^-2 <---- Neither of these is equal to 1/(5^9)

3^5 * 3^2; 3^20/3^2 <--- Neither of these is equal to 3^10

4*x; x^-4/x^8 <---- Neither of these is (always) equal to x^4

0 <--- This is the only value not equal to 1, the value of 8^0

6 0
4 years ago
Solve the equation 2 cos ( x ) + 1 = 0 2 cos x + 1 = 0 , 0 ≤ x ≤ 2 π 0 ≤ x ≤ 2 π . Show all of your work
TiliK225 [7]

Answer:

2π/3, 4π/3

Step-by-step explanation:

I interpret your question as asking us to solve the equation

2cos(x) + 1 = 0

2cos(x) = -1

cos(x) = -½x  

x = arccos(-½), 0 ≤ x ≤2π

Since the cosine is negative, x must be in the second or third quadrant.

Referring to the unit circle, we find that

x = 2π/3 (120°) or x = 4π/3 (240°)

8 0
3 years ago
What is the constant of proportionality on this graph
Colt1911 [192]
The answer is a I believe
4 0
4 years ago
A net is a two-dimensional pattern that can be folded to form a three-dimensional surface. T/F
Nitella [24]

Answer:  True

Explanation:

Consider a 3D cardboard box that you can unfold. It would unfold into a 2D net that you can then re-fold back into its 3D form. The 2D net is useful to help visualize and calculate the surface area. The surface area is simply the total area of all the external faces.

4 0
3 years ago
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