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138 Answered Questions for the topic High School: Math

High School: Math Maths Square Roots

11/19/15

Please help me with the following questions on surds.

1) Expand 5 and square root 5 (square root 6 + 8 and square root 5)   2) Expand (Square root 3 - 4 and square root 5)(Square root 7 - 8 and square root 2)   USING ONLY DOPS FOR 3 AND 4   3)... more
High School: Math Integers Maths

11/19/15

Please help me answer the following questions on surds.

1) Can a negative be a perfect square? 2) Is -67 an integer? 3) Is 3/7 an integer? 4) What is the square root of 729 with a little 3 on the left of the square root sign? 5) What is the square... more
High School: Math Math Geometry

11/16/15

Write each statement in if- then form.

1. All students at Hermitage take an English class.   2. All right angles measure 90 degrees.   3. Every dog has four legs.   4. All vertical angles are congruent.   5. All cat chase... more
High School: Math Trigonometry Maths

11/15/15

Hi. Please help me solve this question.

1) A flying doctor plane flies from its base (B), in a direction of 072degreesT for 80km to reach an outback station (S). From there, the flying doctor travels in a direction 162degreesT for... more
High School: Math Maths Solving Equations

11/15/15

Hi. Please help me with the following two mathematical questions.

1) Solve the following equations using inverse operations.i) 3x-7=7+xii) 3[(6x-2)/4 (Separate)+ 1 ] = 332) A cylindrical (cylinder) water tank of diameter 2.2m and height of 3m is full of water.... more
High School: Math Trigonometry Maths

11/15/15

Hi. Please help me with the following mathematical equations.

1) A flying doctor plane flies from its base (B), in a direction of 072degreesT for 80km to reach an outback station (S). From there, the flying doctor travels in a direction 162degreesT for... more
High School: Math Trigonometry Maths

11/12/15

Hi. Please help me with the following mathematical questions.

1) A flying doctor plane flies from its base (B), in a direction of 072degreesT for 80km to reach an outback station (S). From there, the flying doctor travels in a direction 162degreesT for... more
High School: Math Math Algebra 2

11/09/15

a red flare followed the function f(x)= -(x-15)^2+175. a green flare followed the function f(x)= -x(x-25). which flair went highest in the air?

((where x is the horizontal distance in meters and f(x) was the height in meters.)) I got the question partially correct, the red flare went the highest but I got the highest height of the two... more
High School: Math Conversion Maths

11/05/15

Please help me with the following mathematical questions.

1) I did time=distance/speed. my sum was 170/35=time. My answer was 4.85714. How do i show that in hours and the nearest minute?   2) Again, i used the same formula for another question and... more
High School: Math Trigonometry Maths

11/04/15

Please help me with the following mathematical question.

Rescue Option 2: Rescue BoatThere is a rescue boat that is already out at sea at R. However, it receives distress calls from the yacht and another boat, at the same time.The rescue boat must go to... more
High School: Math Trigonometry Maths

11/04/15

Please help me with the following mathematical question

There is a rescue boat that is already out at sea at R. However, it receives distress calls from the yacht and another boat, at the same time.-The rescue boat must go to the nearest distress call... more
High School: Math Trigonometry Maths

11/04/15

Please help me get x alone.

8100=x^2 + 25600-2x2cos(90)   Thanks so much
High School: Math Maths Exponents

08/23/15

Decay Factor Form Maths

For my maths assignment, i had to do an experiment using a pendulum and measuring the amplitude of every 10 swings up to the 80th swing. One of the questions is find the ratio between consecutive... more
High School: Math Math Algebra

08/18/15

I bicycle across the bridge, ride a flat road, then up the hill to the top of the hill... (more)

I bicycle across the bridge, ride a flat road, then up the hill to the top of the hill. At the top I turn around to go down the hill, over the flats, and back over the bridge. As I look at my... more
High School: Math Math Math Help

07/26/15

Intersection of two lines

a(1−ax)=y2(ax−y)+1=−3(x+y) I need to find the Intersection of these two linesThe answer is: (1/a-3 , 3a/3-a) but I can't get to it
High School: Math Algebra 1 Algebra 2

06/10/15

I need help finding the domain and range of these functions

y=(1/x)-2 and also y=(-4/x-4)+4   also the problem told me to compare 
High School: Math Pre Calculus

05/14/15

Find the fifth roots of 243(cos 260° + i sin 260°).

Find the fifth roots of 243(cos 260° + i sin 260°).
High School: Math Math Help Pre Calculus

05/14/15

Find the standard form of the equation of the parabola with a focus at (0, 6) and a directrix at y = -6

Find the standard form of the equation of the parabola with a focus at (0, 6) and a directrix at y = -6. y equals 1 divided by 24 x squared y2 = 6x y2 = 24x y equals 1 divided by 6 x squared    
High School: Math Algebra 1 Algebra 2

05/13/15

On a 1287 long road trip in windy conditions, a family calculates their fuel economy to be 18 miles per gallon over the 2 days it takes to reach their destinat

On a 1287 long road trip in windy conditions, a family calculates their fuel economy to be 18 miles per gallon over the 2 days it takes to reach their destination. On their 2-day return trip, with... more
High School: Math Precalculus

05/12/15

Find the derivative

Find the derivative of f(x) = 11x2 + 5x at x = 9. 243 223 203 -243 -----------------------------------------------   Find the derivative of f(x) = 3 divided by x at x = 1. -3 -1 1... more
High School: Math Precalculus

05/12/15

Let u = <-4, 1>, v = <-1, 6>. Find -2u + 4v.

Let u = <-4, 1>, v = <-1, 6>. Find -2u + 4v. <4, 22> <4, 7> <12, -26> <10, -14>
High School: Math Precalculus

05/11/15

Evaluate the expression.

Evaluate the expression. r = <7, -3, -7>, v = <4, 6, -5>, w = <-5, -6, -3> v ⋅ w -41 <-20, -36, 15> <-28, 18, -35>... more
High School: Math Math Precalculus

05/11/15

Determine whether a triangle can be formed with the given side lengths. If so, use Heron's formula to find the area of the triangle.

Determine whether a triangle can be formed with the given side lengths. If so, use Heron's formula to find the area of the triangle. a = 240 b = 132 c = 330 No triangle is formed. 30,776.84... more
High School: Math Math Precalculus

05/05/15

Find an equation for the nth term of a geometric sequence where the second and fifth terms are -24 and 1536, respectively.

Find an equation for the nth term of a geometric sequence where the second and fifth terms are -24 and 1536, respectively. an = 6 • (-4)n + 1 an = 6 • 4n an = 6 • 4n - 1 an = 6 • (-4)n - 1
High School: Math Math Help

05/03/15

how to solve

http://assets.openstudy.com/updates/attachments/55468a9fe4b050c6ec063bef-nickymail48-1430686388272-jn.png   couldnt write it out

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