Questions in Grade College

Questions in Grade College

[Answered] Heather is training for a long-distance run. Her data points listed below represent the days of practice, [tex]$x$[/tex], and the number of miles run, [tex]$y$[/tex]. [tex]$(1,2.5),(2,4.2),(4,5.6),(6,7),(8,8.1),(10,11)$[/tex] Use the equation to interpolate the value and estimate the distance that she could have run on day 3. Round to the nearest tenth of a mile. day 3 = [$\square$] miles

[Answered] What is the range of [tex]$y=\log _8 x$[/tex]? A. all real numbers less than 0 B. all real numbers greater than 0 C. all real numbers not equal to 0 D. all real numbers

[Answered] $5-6-8= -9 -19 -7 -11

[Answered] The radius of a circle with an area of 60 square centimeters is represented by the expression [tex]$\sqrt{\frac{60}{\pi}}$[/tex] centimeters. What is another way of expressing the radius? A. [tex]$2 \sqrt{15 \pi}$[/tex] B. [tex]$4 \sqrt{5 \pi}$[/tex] C. [tex]$\frac{2 \sqrt{15 \pi}}{\pi}$[/tex] D. [tex]$\frac{4 \sqrt{5 \pi}}{\pi}$[/tex]

[Answered] A single person earns a gross biweekly salary of $840 and claims 5 exemptions. How will federal taxes affect his net pay? a. Federal taxes will not affect the net pay. b. Net pay will increase $11 from the gross pay. c. Net pay will decrease $11 from the gross pay. d. Net pay will decrease $13 from the gross pay.

[Answered] If [tex]f(x)=x^2-2 x[/tex] and [tex]g(x)=6 x+4[/tex], for which value of [tex]x[/tex] does [tex](f+g)(x)=0[/tex]?

[Answered] Factor the expression. [tex]$-3 r-15$[/tex] Factor out a negative number. [](r+[])

[Answered] The loudness of a jack hammer is 96 dB. Its sound intensity is about [tex]$\sqrt{ } 0.004 v$[/tex]. The loudness of a compactor is 94 dB, its sound intensity is about [tex]$\sqrt{ } 0.0025 v$[/tex]. The sound intensity of the jack hammer is about how many times the sound intensity of the compactor?

[Answered] Answer. Write the answer in simplest form. 1. [tex]\frac{1}{6} \times \frac{5}{9}=[/tex] 2. [tex]\frac{2}{5} \times \frac{7}{8}=[/tex] 3. [tex]\frac{6}{7} \times \frac{2}{9}=[/tex] 4. [tex]18 \times \frac{5}{6}=[/tex] 5. [tex]\frac{5}{24} \times \frac{8}{15}=[/tex] 6. [tex]\frac{16}{7} \times \frac{21}{8}=[/tex] 7. [tex]2 \frac{11}{12} \times \frac{2}{5}=[/tex] 8. [tex]1 \frac{3}{4} \times \frac{20}{21}=[/tex] 9. [tex]4 \frac{9}{10} \times 1 \frac{1}{7}=[/tex] 10. [tex]8 \frac{1}{3} \times 4 \frac{1}{2}=[/tex]

[Answered] In triangle PQR, angle QPR is acute, PQ = 10 cm and PR = 14 cm. (a) The area of triangle PQR is 48 cm². Calculate angle QPR and show that it rounds to 43.3°, correct to 1 decimal place.