Mathematics Questions

If you have a semi-circle with a diameter of 8.6ft, what's the semi-circles area? Use the formula
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Find the slope of the line:5x+3y=6
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A horizontal line passes through the point (5, –1). Which point is also on this line?(0, 0)(–1, 5)(5, –4)(–2, –1)
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A cell phone plan uses a fixed charge of $20 per month plus 10 cents for each minute used to calculate the total bill. The total bill, t, can be expressed in terms of the number of minutes, m, by the function rule t=20+0.10m. Which rule describes the inverse function?t=20−0.10mm=20+0.10tt=−20+0.10mm=10t−200
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Phil has 50 nickels and dimes worth $4.15. How many of each coin does he have?
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Substitution method-r = -3sr= 10 - 4s
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How many pairs of parallel lines does a triangle have
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Round 32.697 to the nearest tenth
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Write 80 as a prime factor?
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Round 32.697 to the nearest hundredths
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What is 32.697 to the whole number
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What is 25/1000 reduced
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how do you represent real- world problems involving ratios and rates with tables and graphs? PLEASE HELP! 10 POINTS!!!!!!
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the screen on brianna new phone is 2.85 centimeters long. what mixed number represents the length ofbthe phone screen
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The ratio of the number of boys to the number of girls in a school is 5:7.If there are 600 students in the school,how many girls are there?
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What is 12/75 as a decimal
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The $199.99 game console Amy purchased was on sale for 10% off. What amount did Amy get off the price?
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I really need help with these and my dad said the way i originally did it was wrong.
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