MATHEMATICS HIGH SCHOOL

What is 9x as a variable

Answers

Answer 1
Answer:

Answer:

Step-by-step explanation:

x
Answer 2
Answer:

Answer:

Step-by-step explanation: regardless 9 is a constant term nd x is variable if x is not determined then it vanishs the constancy of 9x, so variable.

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2r-4/r-2 please help

Answers

(2r-4)/(r-2 )\n \n r-2 \neq 0 \n \nr\neq 2\n\n\n(2r-4)/(r-2 ) =(2(r-2))/((r-2) ) = 2 \n \n
2r-4/r-2 = 2(r-2)/r-2 = 2

What the solution set (x+9)^2=169 of this quadratic equations by extracting the roots? ​

Answers

Answer:

x = - 22, x = 4

Step-by-step explanation:

Given

(x + 9)² = 169 ( take the square root of both sides )

x + 9 = ± √(169) = ± 13 ( subtract 9 from both sides )

x = - 9 ± 13

Thus

x = - 9 - 13 = - 22

x = - 9 + 13 = 4

A quarterback completed 68% of his passes in a game. He threw 25 passes. How many passes did the quarterback complete?

Answers

Find\ 68\%\ of \ 25\ passed\ threw\n\n68\%*25=0,68*25=17\n\nHe\ completed\ 17\ passes.

A man with mass 81 kg lies on the floor. What is the normal force on the man?A. 855 N
B. 794 N
C. 713 N
D. 820 N

Answers

F=m\cdot g\ \ \ \ \wedge\ \ \ \ g\approx9.8\ m/s^2\n \nF\approx81\ kg\cdot9.8\ m/s^2=793.8\ (kg\cdot m)/(s^2) \approx794\ N\ \ \ \Rightarrow\ \ \ Ans.\ B
Forces come in pairs, so the force of gravity (9.8 N) with the mans weight (794N) on the earth is counteracted with the normal force ( the force of the earth back on the man) which is the same

There are 25 pupils in a class 11 pupils scored below 50 marks in a math test and the rest scored 50 marks or above if the passing mark is 50 find the percentage of pupils who passed the test. Step by step

Answers

Step 1: 25 - 11 = 14 (This is the number of pupils who passed the test)

Step 2: 14/25 = .56

Step 3: .56 is 56%

Answer: 56% of pupils passed the test

25 people total
passing mark is 50%

total number of people (25) - people who didn’t pass (11) = people who passed

25-11=14

Hello! I could use some help with this algebra question:)

Answers

Answer:

f(-2) = -14

f(4) = -13

Step-by-step explanation:

(in picture)
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