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Algebra
What is 2/5 of 40?
Algebra
4 months ago
The school principal is designing a square courtyard outside of the school, separated into 4 equal spaces. She wants to know the total area of the courtyard. s= length ft of one side of each space. # Which expression shows the total area of the courtyard? 4s2 What is the total area if each smaller space is 5 feet on each side? ft2
Algebra
4 months ago
20. On Monday, it took Helen 3 hours to do a page of science homework exercises. The next day she did the same number of exercises in 2 hours. If her average rate on Monday was p exercises per hour, what was her average rate the next day, in terms of p?
Algebra
4 months ago
1 What do you call a relation where each element in the domain is related to only one value in the range by some rules? A. Function C. domain B. range D. independent variable 2. Which of the following real-life relationships represent a function? A. The rule which assigns to each person the name if his aunt. B. The rule which assigns to each person the name of his father C. The rule which assigns to each cellular phone unit to its phone number. D. The rule which assigns to each person a name of his pet. 3. A person is earning P500.00 per day for doing a certain job. Which of the following expresses the total salary S as a function of the number n of days that the person works? A. Sn=500+n C. Sn=500n D. B. Sn= 500/n Sn=500-n 4. Find the function value given hx=7x-11 i x=8m+3 A. 56m+10 c. 56m2+10 D. B. 56m-10 56m210 5. For what values of x can we not evaluate the function fx=frac 3x+7x2-4 ± 4 ± 3 _ ± 1 ± 2 6. Given fa=2a+1 and ga=3a-3 ,Find fa+ga A. 5a-2 C. -2a+1 D. B. -5a+2 -6a-1 7. Giver gx=6x-7 and fx=5x-1 ,find ghx A. -9x+11 C、 30x+13 B. 9x2+4x D. 30x-13 8. If fx= square root of x+6 and kx=9-x , find jk-1 A. 9- square root of 5 C. 16 B. square root of 14 D. 4
Algebra
4 months ago
The equation C=2 π r is the formula that relates the circumference of a circle to the radius. This gives us the ability to calculate pi if we physically measure a circle's circumference and radius. Solve the equation for π to get the formula you would use to perform this activity. π = C/2r π =C-2r π =2Cr π = C/2 -r
Algebra
4 months ago
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