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Tutors Answer Your Questions about Square-cubic-other-roots (FREE)
Question 230408: The first part is what I have to solve, and I do not no what I am doing. Especially what it says about exersice 107 I cannot solve that one either but does it have to be done in order to answer the top part of the question? HELP SOMEBODY please. I need help. I am not sure if this is a work problem or a square root problem either :(
Comparing wind chills. Use the formula from
Exercise 107 to determine who will feel colder:
a person in Minneapolis at 10°F with a 15-mph wind
or a person in Chicago at 20°F with a 25-mph wind.
107. Wind chill. The wind chill temperature W (how cold
the air feels) is determined by the air temperature t and
the wind velocity v. Through experimentation in
Antarctica, Paul Siple developed a formula for W:
W = 91.4 - (10.5+6.7sqrtv-0.45v)(457-5t)/110 (this is a fraction)
where W and t are in degrees Fahrenheit and v is in miles
per hour (mph).
a) Find W to the nearest whole degree when t = 25°F
and v = 20 mph.
b) Use the accompanying graph to estimate W when
t = 25°F and v = 30 mph.
Click here to see answer by stanbon(57278)  |
Question 230619: I need to know if there is a difference between x^3 and cubed root, I did a
inverse function problem H(x)=2x^3+3 My answer was y=(x-3)^3/2=h^-1(x)-the answer given was h^-1(x)=cubed root of (x-3)/2 Is this the same?
Click here to see answer by Theo(3458)  |
Question 230439: 5*(-2)+((-1)^(2)-3)^(2) OK I will explain this. There is a parenthesis then a smaller one next to the first + sign. Then the (2) is a to the power 2 and so is the other (2) There I copied and pasted this and this is the way it turned out. I am wondering is all this equals -6??? Did I do it correct or still no such luck for Deb? Help.
Click here to see answer by ankor@dixie-net.com(15645)  |
Question 231013: Write the following expression in simplified radical form.
3sqrt(?)128
I am not even sure if I have this written correctly. The 3 is before the square root sign and the 128 is in the usual spot :) Help please. Does it mean that 3 is a whole number?
Click here to see answer by rfer(12654) |
Question 231256: Ok, these type of problems scare me to no end. Can someone please help me with a step by step explanation. Thanks
1. sqrt w-9=8
2. not sure how to write this problem but it has a 3, then the sqrt sign and inside the sqrt sign is -64.
3. this one is similar where it has 3 sqrt sign and 16 inside the sqrt.
Any help with either problem is greatly appreciated.
Click here to see answer by josmiceli(9664)  |
Question 231256: Ok, these type of problems scare me to no end. Can someone please help me with a step by step explanation. Thanks
1. sqrt w-9=8
2. not sure how to write this problem but it has a 3, then the sqrt sign and inside the sqrt sign is -64.
3. this one is similar where it has 3 sqrt sign and 16 inside the sqrt.
Any help with either problem is greatly appreciated.
Click here to see answer by texttutoring(324)  |
Question 231867: Explain how the graph of y= little 3 sqaure root x+2 -4 can be obtained from the graph of y= little 3 sqaure root x.
A. translate 2 units to the right and 4 units up
B. translate 2 units to the right and 4 units down
C. translate 2 units to the left and 4 units up.
D. translate 2 units to the left and 4 units down.
Click here to see answer by jsmallt9(3296) |
Question 234726: A square picture frame is 36" on each side. The wood trim is 2" and the matting is 5". What is maximum area of the photograph ?
a. 841 sq inches
b. 900 sq inches
c.1156 sq inches
d. 484 sq inches
Thanks,
Emile
Click here to see answer by rfer(12654) |
Question 235092: 3 over 7 minus the square root of 2
Okay so I multiplyed by the opposite, which would be 7 plus square root of 2 on both the deonominator and top.
I got 21 + 3 to the radical of 2 over 47
Did I do this right or am I totally wrong?
Click here to see answer by Theo(3458) |
Question 235093: cube root of 3 to the radical of -1/8d^2f^5(cube root of three to radical of -1/8d squared f to the fifth)
How do you get the cubed root of 1/8 because no number multiplied 3 times equals 1/8 so I am very lost. Please help me!
Click here to see answer by solver91311(16872)  |
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