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3 years ago

Select the correct answer. What is the value of this expression when c = -4 and d = 10?

Mathematics

1 answer:

Alex_Xolod [135]3 years ago

5 0

Answer:

Step-by-step explanation:

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What are logarithms?

horsena [70]

Answer:

In mathematics, the logarithm is the inverse function to exponentiation. That means the logarithm of a given number x is the exponent to which another fixed number, the base b, must be raised, to produce that number x.

Hope this helps

Step-by-step explanation:

7 0

2 years ago

Which expression is equivalent to x^4 + 4x^2 - 45?

Nikitich [7]

Answer:

$( {x}^{2} - 5)( {x}^{2} + 9) = 0$

Step-by-step explanation:

The given expresion is

${x}^{4} + 4 {x}^{2} - 45 = 0$

We can rewrite this as:

$({ {x}^{2}) }^{2} + 4 {x}^{2} - 45 = 0$

We obtained a quadratic equation in x²

Let us split the middle term to get:

$({ {x}^{2}) }^{2} + 9 {x}^{2} - 5{x}^{2} - 45 = 0$

We factor by grouping to get:

${x}^{2} ( {x}^{2} + 9) - 5( {x}^{2} + 9) = 0$

We factor further to get:

$( {x}^{2} - 5)( {x}^{2} + 9) = 0$

The correct answer is A.

6 0

2 years ago

What is 48% of 30 for and estamation on percent

mihalych1998 [28]

Around 14.40 would be the answer

7 0

2 years ago

Apply the distributive property to simplify the expression. −9(−2x − 3)

torisob [31]

Answer:

Step-by-step explanation:

you do -9 times -2x which is 9x2X

then you do -9 times -3

so your answer is 9times2x-29

7 0

3 years ago

A 16-bit register contains a value. the value 0x75a2 is written into it. can the original value be recovered (yes or no)?

Likurg_2 [28]

The given value of 0x75a2 is the hexadecimal representation of the value or number.

The base of the HEX system is 16, and the first 16 numbers are named
0,1,2,3,4,5,6,7,8,9,a,b,c,d,e,f

In the decimal system, the given number is
(2 x 10⁰) + (10 x 16¹) + (5 x 16²) + (7 x 16³)
= 2 + 160 + 1280 + 28672
= 30114

Answer:
The original value can be recovered, and it is 30114.

3 0

3 years ago