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kari74 [83]
2 years ago
14

Evaluate the expression, if x = 9, y = 3, and z = 5. z2 • (x-y)

Mathematics
2 answers:
Bad White [126]2 years ago
3 0

\huge\text{Hey there!}


\mathsf{z^2 \times (x - y)}

\mathsf{= 5^2 \times (9 - 3)}

\mathsf{= 5 \times 5 \times (9 - 3)}

\mathsf{= \bold{25}\times(9 - 3)}

\mathsf{= 25\times \bf 6}

\mathsf{= \bf 150}


\huge\text{Therefore, your answer should be: }

\huge\boxed{\frak{150}}\huge\checkmark


\huge\text{Good luck on your assignment \& enjoy your day!}


~\frak{Amphitrite1040:)}

S_A_V [24]2 years ago
3 0

Answer:

150

Step-by-step explanation:

substitute the given values into the expression

z² × (x - y)

= 5² × (9 - 3)

= 25 × 6

= 150

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Write the inverse function for the function, ƒ(x) = x + 4. Then, find the value of ƒ -1(4). Type your answers in the box.
lesya [120]

The inverse is:

f^{-1}(x) = x-4

Further explanation:

Given function

f(x) = x+4

<u>Step 1: Replacing f(x) with y</u>

y = x+4

<u>Step 2: Replacing x with y and y with x</u>

x = y+4

<u>Step 3: Solving the equation for y</u>

x = y +4\\x -4 = y+4-4\\y = x-4

<u>Step 4: Replacing y with f-1(x)</u>

f^{-1}(x) = x-4

So, the inverse is:

f^{-1}(x) = x-4

Keywords: Functions, Inverse of function

Learn more about inverse of functions at:

  • brainly.com/question/3225044
  • brainly.com/question/4620451

#LearnwithBrainly

3 0
3 years ago
​The diameter of the circle shown below is 12 . What is the area of the circle?
Diano4ka-milaya [45]

The area of the circle is 113.1 !!

8 0
3 years ago
Need help! :(
snow_tiger [21]
Given:
2x² + 8x - 12 = 0

Solution:
The first term 2x² can't be changed to a complete square form. If we want to change it to the complete square form, we need to change 2x² to 4x². So, multiply both sides of the equation by 2
2x² + 8x - 12 = 0
------------------------- multiplied by 2
4x² + 16x - 24 = 0

then change it to complete quadratic form by adding 16 to both sides
4x² + 16x - 24 = 0
4x² + 16x + 16 - 24 = 16
4x² + 16x + 16 = 16 + 24
4x² + 16x + 16 = 40
(2x + 4)(2x + 4) = 40
(2x + 4)² = 40
This is the complete quadratic form of the equation.

Because there is no option of the solution, we can modify the equation by multiplying the two sides by a square number. I multiply the equation by 4.
(2x + 4)² = 40
4 (2x + 4)² = 4 × 40
4 (2x + 4)² = 160
4 (2x + 4)(2x + 4) = 160
2(2x + 4) 2(2x + 4) = 160
(4x + 8)(4x + 8) = 160
(4x + 8)² = 160

The answer is option b
5 0
4 years ago
Read 2 more answers
Xavier is x years old and Yvonne is y years old. Yvonne is 7 years older than Xavier. Four times Yvonne’s age is equal to 200.
Anit [1.1K]
A) y=x+7
B) y=200/4=50
C) y=x+7 and we know that y=50 so we have 50 = x+7 which can be changed to x=50-7=43
6 0
4 years ago
!PLEASE EXPLAIN IT EASY SO I UNDERSTAND IT!
Mariana [72]
$1350-$750=$600
2010-2000=10 years
600/10=$60 increase per year
a) since elliot started with $750 in 2000 and he started working in 2000 that would be his initial fee and every year he increased his fee by $60.
b) y=60x+750
4 0
3 years ago
Read 2 more answers
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