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Zarrin [17]
1 year ago
12

Which of the following will result in a rational number? Select all that apply.

Mathematics
1 answer:
romanna [79]1 year ago
8 0

An expression is defined as a set of numbers, variables, and mathematical operations

<h3>What is an Expression?</h3>

In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.

The given expression can be simplified as,

A.) 7 3/4 - (√11)/5 = (155-4√11)/20

B.) 7 3/4 ÷ (√11)/5 = 155/(4√11)

C) 7 3/4 + (√16)/5 = 166/20

D.) 7 3/4 + (√16)/5 = 31/5

The option that will result in a rational number is C and D.

Learn more about Expression:

brainly.com/question/13947055

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Erika is working on solving the exponential equation 50x = 17; however, she is not quite sure where to start. using complete sen
Kryger [21]

Erika is working on solving the exponential equation 50^x = 17; The solution is x = 0.7242.

<h3>What is logarithm?</h3>

When you raise a number with an exponent, there comes a result.

Let's say you get

a^b = c

Then, you can write 'b' in terms of 'a' and 'c' using a logarithm as follows

b = \log_a(c)

'a' is called base of this log function. We say that 'b' is the logarithm of 'c' to base 'a'

Erika is working on solving the exponential equation 50^x = 17;

however, she is not quite sure where to start.

The equation is

50^x = 17\\

By taking the log both sides

log_a b = x\\\\a_x = b

By using the base formula

log_0 y = \dfrac{logy}{log b}

So, log_{50} 17= x\\\\

x = \dfrac{log17}{log 50}

x = 0.7242

Learn more about logarithm here:

brainly.com/question/20835449

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3 0
2 years ago
1 - 2/3 = ? Pls help me i don’t know what this means
ElenaW [278]

Answer:

1/3

Step-by-step explanation:

Simplify the following:

1 - 2/3

Put 1 - 2/3 over the common denominator 3. 1 - 2/3 = 3/3 - 2/3:

3/3 - 2/3

3/3 - 2/3 = (3 - 2)/3:

(3 - 2)/3

3 - 2 = 1:

Answer:  1/3

3 0
3 years ago
If y varies directly as the x^2 and y = 200 when x = 5, what is the value of y when x = -3?
gayaneshka [121]
As the variation is direct we have:
 y = kx ^ 2&#10;
 We must find the value of k.
 For this, we use the following data:
 y = 200 when x = 5
 Substituting values we have:
 200 = k5 ^ 2&#10;
 Clearing k:
 k = 200/5 ^ 2&#10;&#10;k = 200/25&#10;&#10;k = 8
 Then, the function is:
 y = 8x ^ 2&#10;
 We evaluate the function for x = -3
 y = 8 (-3) ^ 2&#10;&#10;y = 8 (9)&#10;&#10;y = 72
 Answer:
 the value of y when x = -3 is:
 c.
 
72
6 0
3 years ago
Given f(x) = -4x - 2, solve for x when f(x) = 6.
Andrej [43]

Answer:

use

Step-by-step explanation:

calculator

6 0
3 years ago
Please help me<br><br> Find the value of x
kvv77 [185]

Answer:

x = 5 and y = 22

Step-by-step explanation:

See attached image.

6 0
1 year ago
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