EXERCISE 4.2 (Non-straight-line Graphs) In these you may use graph paper, pencil and pen, a graphics calculator or a mathematics software package to help you solve the problem. A ball is thrown vertically into the air from ground level so that at t seconds it is h metres above the point of projection. The relationship between h and t is given byh = 25t -5P. Draw the graph of h against t for 0 s ts 5, using a scale of 2 cm to 1 second horizontally and 2 cm to 10 metres vertically. Use your graph to find: a) the time when the ball is at its greatest height, b) the greatest height achieved by the ball, c) the interval of time during which the ball is at a height of 30 m or more above the ground. 1)

Q: f c = 12, what is 4 + c?

A: given,  c=12 let  A=4+c

Q: 5. If a number plus 4 equals two times 6, what is the number?

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Q: was having trouble finding out the first response, I would really love help with that. Thank you!

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Q: solve the same given using algebraic manipulation

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Q: 3. Solve for x in the picture below: 7x+4 5x X-4 4х - 3 x-7 Зх - 1 2x-9,

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Q: Can you clarify the answer for the second step (a) ? It says that it's wrong.

A: as per the given data we can draw the following pond Let Q(t) be the amount of chemical (in kg) in…

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Q: That is NOT the correct solution. Thanks.

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A: given equations are…

Q: х - 12 1 18

A: Solving the problem by finding the value of x.

Q: Solve h=ab+rh=ab+r for a

A: Given     h= ab + rh We can solve for a by separating it

Q: For step three, how did you replace the h?

A: Let's solve.

Q: Solve the second order. Dieg - Ý - ý syes 1 39

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Q: could you solve the second question as well

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Q: How do I solve this question?

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Q: Explain again step 3 ? I don't understand.

A: It is clear that the function f(t) has jump discontinuity at (n,0) where n is an integer.

Q: 5. [ sinxcos^xdx

A: Use necessary identities.

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Q: ADEFAWVU 18x+6 D 156

A:

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.