Solve the problem.The winning times (in seconds) W(t) and M(t) for the Olympic 1500 meter run for women and men, respectively, can be modeled by the systemW(t) = -0.24t + 240.1
M(T) = -0.1t + 216.3
where t represents the number of years since 1972.i) According to the models, for what years will the women's winning time be better than the men's winning time?ii) How much are the women's winning time gaining on the men's winning times each year?
What will be an ideal response?
| i) | After 2142 |
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Solve the problem.In how many ways can the letters in the word GIGGLE be arranged?
A. 4320 B. 720 C. 120 D. 36
Solve.County records list a rectangular parcel of land as measuring 42,994 square yards. A surveyor measures the length of the parcel of land as 259 yards. What is the width of the parcel?
A. 166 yards B. 159 yards C. 175 yards D. 42,735 yards
Provide an appropriate response.Which of the following properties do not hold for matrix multiplication?(i)Associative property(ii)Commutative property(iii)Distributive property(iv)Zero-factor property (If the product of two matrices is a zero matrix, one of the factors must be a zero matrix.)
A. (i), (iii) B. (ii) only C. (ii), (iv) D. None (All of the listed properties hold.)
Find the real solutions of the equation.
+ 
= 3
A. {1}
B. {4}
C. {
}
D. no real solution