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Finger [1]
3 years ago
15

Somebody help me with this question!

Mathematics
2 answers:
dimulka [17.4K]3 years ago
7 0

\frac{z\cdot z\cdot z\cdot z\cdot z\cdot z\cdot z}{z\cdot z}=\frac{z^7}{z^2}=z^{7-2}=\boxed{z^5}

Cerrena [4.2K]3 years ago
4 0

Answer:

\frac{ {z}^{7} }{ {z}^{2} }

= z to the power of 5

Step-by-step explanation:

I am 100% sure with this answer

You might be interested in
Which number produces a rational number when multiplied by 1/5?
bogdanovich [222]
The answer is A
Explanation: 11x11=121
121x1/5=121/5
5 0
2 years ago
The product of a number and -3, increased by 8, is 20
natita [175]

answer:

-4

Step-by-step explanation:

-3x+8= 20

-8 -8

-3x = 12

÷-3. = ÷-3

x = -4

3 0
3 years ago
Let the function f be defined as f(x)= 5x^2 - 7(4x+3). What is the value of f(3)
Katen [24]

Answer:

f(x) = -60 is your answer

Step-by-step explanation:

Plug in 3 for x

f(x) = 5x² - 7(4x + 3)

f(x) = 5(3²) - 7(4(3) + 3)

Follow PEMDAS. First, solve the parenthesis

3² = 9

4(3) + 3 = 12 + 3 = 15

f(x) = 5(9) - 7(15)

Multiply

f(x) = 45 - 105

Simplify. Subtract

f(x) = 45 - 105

f(x) = -60

f(x) = -60 is your answer

~

4 0
3 years ago
PLEASE HELP!!!! Will give brainliest
pashok25 [27]

Answer:

Trapezium:

perimeter= 232

area= 2052

Triangle:

perimeter= 221

area= 4088

Step-by-step explanation:

6 0
3 years ago
John sells hamburgers ($3) and cheeseburgers ($3.50). One afternoon he sells a total of 24 burger for $79. How many of these wer
ankoles [38]

John sold 10 hamburgers and 14 cheeseburgers.

Step-by-step explanation:

Given,

Cost of one hamburger = $3

Cost of one cheeseburger = $3.50

Total burgers sold = 24

Total revenue earned = $79

Let,

Number of hamburgers sold = x

Number of cheeseburgers sold = y

According to given statement;

x+y=24   Eqn 1

3x+3.50y=79    Eqn 2

Multiplying Eqn 1 by 3

3(x+y=24)\\3x+3y=72\ \ \ Eqn\ 3

Subtracting Eqn 3 from Eqn 2

(3x+3.50y)-(3x+3y)=79-72\\3x+3.50y-3x-3y=7\\0.50y=7

Dividing both sides by 0.50

\frac{0.50y}{0.50}=\frac{7}{0.50}\\y=14

Putting y=14 in Eqn 1

x+14=24\\x=24-14\\x=10

John sold 10 hamburgers and 14 cheeseburgers.

Keywords: linear equation, elimination method

Learn more about elimination method at:

  • brainly.com/question/13070361
  • brainly.com/question/13084321

#LearnwithBrainly

3 0
3 years ago
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