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Semenov [28]
3 years ago
15

Evaluate 15/r -1 when r = 5

Mathematics
2 answers:
Juli2301 [7.4K]3 years ago
4 0
\frac{15}{r}-1=\frac{15}{5}-1=3-1=2

2)
\frac{15}{r-1}=\frac{15}{5-1}=\frac{15}{4}=3\frac{3}{4}=3.75
Fynjy0 [20]3 years ago
4 0
15/r-1  
15/5-1  (substitute 5 for r)
15/4     (5-1 is 4)
3.75     (15/4 is 3.75)
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8 (3f - g) when f = 9 and g = -3​
Neko [114]

Step-by-step explanation:

  • 8(3f-g)

when f=9, g=-3, then

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3 0
2 years ago
If h(x) = 5x - 3 and j(x) = -2x, solve hlj(2)] and select the correct answer below. (1 point)
BARSIC [14]

Answer:

-23

Step-by-step explanation:

We are given the functions;

h(x) = 5x - 3 and j(x) = -2x

Now, we want to find h[j(2)]

j(2) = -2(2)

j(2) = -4

Thus;

h(-4) = 5(-4) - 3

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h(-4) = - 23

4 0
3 years ago
Write each expression in simplest form. (x²/x⁻¹¹)¹/₃
aleksklad [387]

The result of simplifying the expression (x²/x⁻¹¹)¹/₃ using the exponent rules is \sqrt[3]{}(x¹³)

To solve this exercise we have to resolve algebraic operations following the exponent rules.

(x²/x⁻¹¹)¹/₃

Using the quotient rule that indicates that: the exponent result will be the subtraction of these exponents, we have:

(x⁽²⁻⁽⁻¹¹⁾)¹/₃

(x⁽²⁺¹¹⁾)¹/₃

(x¹³)¹/₃

Using the power of a power rule that indicates that: the exponent result will be the multiplication of these powers, we have:

x⁽¹³*¹/₃⁾

x⁽¹³/₃⁾

As we have a fractional exponent, you must convert the exponent to root:

\sqrt[3]{}(x¹³)

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

In mathematics an exponent is the number of time that a number, called (base) is multiplied by itself. It is also called, power or index.

Example: 3² = 3*3 = 9

Learn more about exponent at: brainly.com/question/847241

#SPJ4

8 0
1 year ago
A new car that sells for $28,000 depreicates 25% each year. Write a function that models the value of the car. Find the value of
BartSMP [9]

Answer:

<h2>88859.375  &  f(n)= 28000(0.75)×</h2>

Step-by-step explanation:

using the information on the problem a function can can be made

f(n)= 28000(0.75)×

where x is the amount of years

plug in 4 for x in the equation to get

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5 0
3 years ago
Point W bisects UV. Find UV if WV= 11 1/8 inches
schepotkina [342]
Just multiply 11 1/8 by 2 and u should get 22.25 so the length of UV is 22.25 inches
7 0
3 years ago
Read 2 more answers
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