02/06/20

An artillery shell is fired from a cliff 20.7 m above a valley with a velocity of 255 m/s at an angle of 37.7 degrees above the horizontal

How far (in km) has the shell traveled horizontally when it is at its maximum height?
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02/06/20

Write the slope intercept form of the line with a slope of 2 and a y intercept of -4
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02/05/20

what equation is equivalent to 8+24x
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02/05/20

Solve the system using substitution........... y=-3x+12 5y-x+4=0
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02/05/20

Richard spent $8 for 1 magazine and 2 puzzle books.At the same store Christopher spent $23 for 4 magazines and 4 puzzle books.How so you write a system of equation to represent the situation?
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02/05/20

homework help for math 103
(1 point) Is the function below exponential?m(t)=(4⋅5t)3If so, write the function in the form  and enter the values you find for  and  in the indicated blanks below. If the function is not... more
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02/05/20

Perpendicular to 3y=x-4 and passes through the point (-2,1)
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02/05/20

Math Question .
Does either y=2x or y=2x+1 represent an exponential function?
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02/05/20

An atom has a diameter of 5.00 Å and the nucleus of that atom has a diameter of 3.00 × 10 − 5 Å . Assume the atom and the nucleus are a sphere.
 Determine the fraction of the volume of the atom that is taken up by the nucleus. fraction of atomic volume: Calculate the density of a proton, given that the mass of a proton is 1.0073 amu and... more
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02/05/20

what is 1.6 times 10 to the negative power of 6 in standard form
what is 1.6 x 10-6 in standard form
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02/05/20

Models and applications

After a 70% reduction, you purchase a new soft drink machine on sale for $174. What was the original price of the soft drink machine
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02/05/20

Algebraic expression
Write an algebraic expression for "3 times the sum of a number and 7."
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02/04/20

What are the length and width of a rectangular traffic sign if the length exceeds the width by 10 inches and the perimeter is 156 ​inches?
Kind of stuck dont know how to solve this?
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02/04/20

Of the 400 vehicales that passed an intersection 98 of them are busses. What percentage of the vehicles that passed the intersection are busses
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02/04/20

quadratic functions
jake tosses a coin in the air and lets it fall on the ground. the equation that models the height (in feet) and time (in secounds) of the parabola is h(t)=-26t^2+24t+6. what is the height of the... more
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02/04/20

how will u subtract 678 - 8y = - 23
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02/04/20

Please help! Quadratic function solving

A basketball player shoots a basketball with an initial velocity of 15 ft/sec. The ball is released from an initial height of 6.5 feet.The function         models the height, in feet, of an object... more
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02/04/20

A cylindrical can has a volume of 160(pi)cm^3 and is 10 cm tall. What is the diameter?

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02/04/20

Find the slope of the line y = –4 x − 3 2 . Simplify your answer and write it as a proper fraction, improper fraction, or integer.
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02/04/20

Eight times the sum of a number and 9 is 7

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02/04/20

Determine the zero(s) of k ( x ) = 20 + 7 6 x k(x)=20+76x .
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02/04/20

physics projectile problem with max height
A projectile of mass 0.5 kg is shot straight up with an initial speed of 18.8 m/s. How much energy is lost from the system if it reaches a max height of 15.9048 meters? 
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02/04/20

please help with chem!
Antimony has two naturally occuring isotopes, 121Sb and 123Sb. 121Sb has an atomic mass of 120.9038 u, and 123Sb has an atomic mass of 122.9042 u. Antimony has an average atomic mass of 121.7601 u.... more
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02/04/20

Help me find how to get 8 to 100?
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02/03/20

rite the equation of the line passing through the point ​(4​,- 8​) with slope -3/4

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