12/07/20
two variables problems
An investor deposited $650 into two accounts. The first account earns 4.7% annual simple interest. The second account earns 4.8 % annual simple interest. If the accounts end up earning the...
more
12/07/20
You can afford monthly deposits of $270 into an account that pays 3.9% compounded monthly. How long will it be until you have $6,400 to buy a boat?
You can afford monthly deposits of $270 into an account that pays 3.9% compounded monthly. How long will it be until you have $6,400 to buy a boat?Type the number of months: _______(Round to...
more
12/07/20
On a college of 5000 students, the spread of flu virus through the student is modeled by P(t)=5000/(1+4999e^[−0.8t]), where P is the number of students infected after t days.
Questions: (a) Will all students on the campus be infected with the flu? (b) After how many days is the virus spreading the fastest?
12/07/20
A cube with an original volume of 8 units3 has been dilated. What was the scale factor if the volume is now 64 units3? (Hint: Determine the side length of the pre-image first.)
Possible answers: 24816
12/07/20
Use linear approximation to estimate the amount of paint in cubic centimeters needed to apply a coat of paint 0.09 cm thick to a hemispherical dome with a diameter of 80 meters. cubic centimeters
Use linear approximation to estimate the amount of paint in cubic centimeters needed to apply a coat of paint 0.09 cm thick to a hemispherical dome with a diameter of 80 meters. cubic centimeters
12/07/20
A cube of volume 1000 units3 is dilated by a scale factor of 1/2. What is the volume of the image? (Hint: Determine the side length of the pre-image first.)
Possible answers below:10 units3 125 units3500 units38000 units3
12/07/20
Hi can you pls help :o
Write the slope-intercept form of the equation of the line parallel to the graph of y = -2x + 5 that passes through (0, 1).
12/07/20
trigonometry solving triangles
Consider a triangle which has side lengths a, b, and c, and angles , , and , with opposite the side of length a, and so on.If , , and , what is b?(I got for the answer but just checking!)
12/07/20
Trigonometry angle of elevation
You go to the Leaning Tower of Pisa and you bring a protractor. With the protractor, you measure that the Tower is leaning at an angle of . You then walk away from the tower feet, so that the tower...
more
12/07/20
A freight train left Washington and traveled south.
A freight train left Washington and traveled south. A diesel train left six hours later traveling at 85 km/h in an effort to catch up to the freight train. After traveling for 11 hours the diesel...
more
find parabola features without a graph
A parabola can be drawn given a focus of(−8,−8) and a directrix of y=2. What can be said about the parabola?what is the vertex and p value
12/06/20
A plane traveled 400 miles to London and back.
A plane traveled 400 miles to London and back. The trip there was with the wind. It took 4 hours. The trip back was into the wind. The trip back took 5 hours. Find the speed of the plane in still...
more
12/06/20
A plane traveled 400 miles to London and back.
A plane traveled 400 miles to London and back. The trip there was with the wind. It took 4 hours. The trip back was into the wind. The trip back took 5 hours. Find the speed of the plane in still...
more
12/06/20
Trigonometry solving triangles
Consider a triangle which has side lengths a, b, and c, and angles , , and , with opposite the side of length a, and so on. If , ,, and , what is b?
12/06/20
Find the area of the region bounded by the graphs of y = x, y = -x + 8, and y = 0.
Find the area of the region bounded by the graphs of y = x, y = -x + 8, and y = 0
A
32
B
8
C
16
D
None of these
Math ratio problem help
A patio is 7 yards by 10.5 yards. You want to place an outdoor floor covering on the surface. The covering is sold for $15.99 per whole square meter. How much will it cost to cover the patio??
12/05/20
choose all true statements about the zeros of:
f(x)=x4+7x3-12x2+40x-15
f(x) has 3 or 1 positive real zeros
1,3, 5, 15 are the possible rational zeros
f(x) has 4,2 or 0 real zeros
f(x) has 2 or 0 negative real zeros
f(x) has 4 total zeros, real...
more
12/05/20
I can't figure out how to do this problem help me please
Rewrite the expression in terms of the first power of the cosine. Use a graphing utility to graph both expressions to verify that both forms are the same.9 cos2(2x)
Still looking for help? Get the right answer, fast.
Ask a question for free
Get a free answer to a quick problem.
Most questions answered within 4 hours.
OR
Find an Online Tutor Now
Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.