Examples. By: Bailey Garrison, Keaton Devening, Christian Curtner, Kaylee Schnelten, Lucas Gardner,...
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Transcript of Examples. By: Bailey Garrison, Keaton Devening, Christian Curtner, Kaylee Schnelten, Lucas Gardner,...
![Page 1: Examples. By: Bailey Garrison, Keaton Devening, Christian Curtner, Kaylee Schnelten, Lucas Gardner, Caleb Love, Noha Duam.](https://reader036.fdocuments.us/reader036/viewer/2022062511/5518d56555034638098b5296/html5/thumbnails/1.jpg)
Examples.
By: Bailey Garrison, Keaton Devening, Christian Curtner, Kaylee Schnelten,
Lucas Gardner, Caleb Love, Noha Duam
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Examples 2.1
• Absolute values, when a negative number is put into brackets they automatically become positive.
• When the negative sign is outside the brackets the number stays negative.
• |-32|= +32• -|12|= -12
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Examples.2.2
• Adding real numbers. To add two numbers with the same sign, add their absolute values. The sum has the same sign as the numbers added.
• 8+7=15, -6+10=-16• To add two numbers with different signs,
subtract the lesser absolute value from the greater absolute value. The sum has the same sign as the number with the greater value.
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examples. 2.3
• Subtracting real numbers, to subtract a from b add the opposite of b to a.
• A-b=a+(-b)• Now you plug in the numbers.• -12-19=-12+(19)• The answer is -31.
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Examples. 2.4
• Multiplying real numbers.• The product of two real numbers with the
same sign is positive. The product of two real numbers with different signs is negative.
• 3(4)=12• -6(-3)=18• 2(-5)=-10• -7(2)=-14
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Examples 2.5
• Applying the distributive property.• You need to know the terms, they are the
constant terms and like terms. • Then you have to draw your arcs.• 2(x-6)• 2x-12• You have to multiply each number by 2.
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Examples 2.6
• Diving real numbers, to divide real numbers you need to use the multiplicative inverse.
• The product of a nonzero number and a multiplicative inverse is 1.
• A*1/4=1/4*a• 8*1/8=1• The eights cancel out.
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Examples 2.7
• Finding square roots and comparing real numbers.
• A square root is where you can have a number times its self to give you another number.
• Like the square root of 36 is 6. because 6*6=36
• A perfect square is the square of an integer.•
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he temperature in your city at 6A.M. was -8°F and increased by 15°F by noon. What was the temperature an noon?
Increase means to add (+)-8 + 15 = Noon Temperature
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FOOTBALLIn Four Plays a football team gains 3 yards, loses 7 yards, loses 2,
and gains 15 yards. How many yards did the team gain after four plays?
3-7-2+15=9They gained 9 yards overall.
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You have a coupon for $2 off the regular cost per movie rental. You rent 3 movies, and the regular cost of each rental is the same. Write an equation that gives the total cost c ( in dollars)as a function of the regular cost R (in dollars) of a rental. Then find the total cost if a rental regularly cost $3.99.
Write a verbal mode. Then write an equation. Total cost = Numbers of movie rented* (Regular cost of a rental-Discount per movie)
C=3(r-2) or C=3r-6Find the value of C when r = $3.99. C=3($3.99-2) $11.97-6=$5.97 The total cost is $5.97
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You have a coupon for $2 off the regular cost per movie rental. You rent 3 movies, and the regular cost of each rental is the same. Write an equation that gives the total cost c ( in dollars)as a function of the regular cost R (in dollars) of a rental. Then find the total cost if a rental regularly cost $3.99.
Write a verbal mode. Then write an equation. Total cost = Numbers of movie rented* (Regular cost of a rental-Discount per movie)
C=3(r-2) or C=3r-6Find the value of C when r = $3.99. C=3($3.99-2) $11.97-6=$5.97 The total cost is $5.97
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A guitar tuner is a device that tunes a guitar string to its exact pitch. Some tuners use the measure cents to indicate how far above or below the exact pitch, marked as 0 cents, the string tone is. Suppose that one string tone measures -3.4 cents, and a second string tone measures -3.8 cents. Which string tone is closer to the exact pitch? Explain.
-3.4 is the absolute value of -3.4 is less than absolute value of -3.8, so it is closer to 0, the exact pitch.
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An investor purchases 50 shares of a stock at $3.50 per share. The next day, the change in value of a share of stock is -$.25. What is the total value of the shares the next day?
Total value = original price per share * #’s of shares + Change in price per share * #’s of share
Original price = ($3.50)(50) = $175Change in price = (-$.25)(50)= -$12.50Total value = (3.50)(50)+(-0.250(50)= 175 + (-12.50)= 162.50The total value is $162.50
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A farm in Dallas Texas is 250,000 sq ft what is the farm on one side
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