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Phantasy [73]
3 years ago
5

Evaluate the given expression if a​ = 2 and ​b​ = -4 a2-b3

Mathematics
1 answer:
IceJOKER [234]3 years ago
5 0

Answer:

31

Step-by-step explanation:

{a}^{2}  -  {b}^{3}  \\  \\  =  {(2)}^{2}  -  {( - 3)}^{3}  \\  \\  = 4 - ( - 27) \\  \\  = 4 + 27 \\  \\  = 31

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Given the function f(x)=6x-11, find f(-1/3).
Nadya [2.5K]

Answer:

-13

Step-by-step explanation:

(-1/3)*6 = -2

f(-1/3) = -2 -11

f(-1/3) = -13

7 0
3 years ago
Use properties of exponents to rewrite the following expressions as a number or an exponential expression with
Lerok [7]

Answer:

[(2)^√3]^√3 = 8

Step-by-step explanation:

Hi there!

Let´s write the expression:

[(2)^√3]^√3

Now, let´s write the square roots as fractional exponents (√3 = 3^1/2):

[(2)^(3^1/2)]^(3^1/2)

Let´s apply the following exponents property: (xᵃ)ᵇ = xᵃᵇ and multiply the exponents:

(2)^(3^1/2 · 3^1/2)

Apply the following property of exponents: xᵃ · xᵇ = xᵃ⁺ᵇ

(2)^(3^(1/2 + 1/2)) =2^3¹ = 2³ = 8

Then the expression can be written as:

[(2)^√3]^√3 = 8

Have a nice day!

7 0
3 years ago
2{ 3[9 + 4(7 -5) - 4]}
Oliga [24]

Answer:

2{3[9+4(7-5)-4]}

2{3[9+4(2)-4]}

2{3[13(2)-4]}

2{3[26-4]}

2{3[22]}

2{66}

132

Step-by-step explanation:

8 0
3 years ago
Please answer correctly !!!! Will mark brainliest !!!!!
7nadin3 [17]
Hi there!

f(x) = − 4x/5 − 8/5

Hope this helps !
8 0
3 years ago
Mark this question "True" if the argument is VALID, and "False" if the argument is INVALID: If this number is larger than 6, the
sleet_krkn [62]

This argument is no valid although the first part of the statement is valid. If a number is larger than 6 than its square must be larger than 36. But if the number is smaller than 6, its square does not need to be smaller than 36. For example...

(-100)²=10000

-100 is smaller than 6 but its square is bigger.

answer: False

7 0
3 years ago
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