MATHEMATICS HIGH SCHOOL

Explain how u would multiply 5x21/2

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

5x21 = 105

105/2 = 52,5

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A full moon occurs every 30 days if the last full moon occurred on Friday how many days will pass before full moon occurs again on a Friday

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Not sure but I think it will need 210 days

If a square has an area of 81 square units how long is each side?

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$A=81 \n \n A = s^2 \n \n s^2 = 81 \n \ns=√(81) \n \ns= 9 \n \n Ansewr : \ each \ side \ is \ 9 \ units \ on \ each \ side$

Solve this inequality j/4 -8<4

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$(j)/(4)$ - 8 < 4
Take 8 to the right side
$(j)/(4)$ < 12
Multiply by 4 on either sides to isolate the variable
j < 48

I wwant to no what is 23f

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It's a number that is 23 times the size of ' f ' .

Find the stationary point on the curve y=3x^4 +1 and determine its nature

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$y=3x^4+1\ny'=12x^3\n\n12x^3=0\nx=0\leftarrow \text{stationary point}\n\n\forall x\in(-\infty,0)\ y'<0\Rightarrow y\searrow\n\forall x\in(0,\infty)\ y'>0\Rightarrow y\nearrow\n\Downarrow\ny(0)=y_(min)$

$y_(min)=3\cdot0^4+1=1$

A survey shows that the probability that an employee gets placed in a suitable job is 0.65. A psychometric test consultant claims that he could help place any employee in a suitable job based on the result of a psychometric test. The test has an accuracy rate of 70%. An employee working in a particular company takes the test. The probability that the employee is in the right job and the test predicts that he is in the wrong job is_______The probability that the employee is in the wrong job and the test predicts that he is in the right job is ________

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The probability that the employee is in the right job and the test predicts that he is in the wrong job is_______The probability that the employee is in the wrong job and the test predicts that he is in the right job is ________

1. 30%
2. 35%

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What is the x-intercept for 6x-y=30

Can someone help me?