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mario62 [17]
2 years ago
10

Pls help !!!!!! i need the answer for this pleasee <33

Mathematics
2 answers:
Serjik [45]2 years ago
6 0
Isishsiahsuxhzgfzgsj
Alika [10]2 years ago
5 0

Answer:

slope- intercept form is

y=mx+b

m= slope

b= y-int  

looking at the chart we can see that the graph goes up 11 and right 6

so we now have

y= 11/6x+b

we could also do

m=(y2-y1)/(x2-x1) using our points

m=(21-10)/(-3-(-9)

m=11/6

then we can use an x value and its corresponding y value from the equation to find b

I will use the points -9,10

10= 11/6(-9)+b

10=-16.5+b

+16.5   +16.5

26.5=b

so your full equation is:

y=11/6x + 26.5

Step-by-step explanation:

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<span>Highest point = 1406.25 Number of seconds = 9.375 We've been given the quadratic equation y = -16t^2 + 300t which describes a parabola. Since a parabola is a symmetric curve, the highest value will have a t value midway between its roots. So using the quadratic formula with A = -16, B = 300, C = 0. We get the roots of t = 0, and t = 18.75. The midpoint will be (0 + 18.75)/2 = 9.375 So let's calculate the height at t = 9.375. y = -16t^2 + 300t y = -16(9.375)^2 + 300(9.375) y = -16(87.890625) + 300(9.375) y = -1406.25 + 2812.5 y = 1406.25 So the highest point will be 1406.25 after 9.375 seconds. Let's verify that. I'll use the value of (9.375 + e) for the time and substitute that into the height equation and see what I get.' y = -16t^2 + 300t y = -16(9.375 + e)^2 + 300(9.375 + e) y = -16(87.890625 + 18.75e + e^2) + 300(9.375 + e) y = -1406.25 - 300e - 16e^2 + 2812.5 + 300e y = 1406.25 - 16e^2 Notice that the only term with e is -16e^2. Any non-zero value for e will cause that term to be negative and reduce the total value of the equation. Therefore any time value other than 9.375 will result in a lower height of the cannon ball. So 9.375 is the correct time and 1406.25 is the correct height.</span>
4 0
3 years ago
Nadia bought 3 packs of baseball cards. Each pack had the same number of cards. She gave 5 cards to her sister. Now she has 19 c
garri49 [273]

Answer:

8 cards

Step-by-step explanation:

19 + 5 = 24

24/3 = 8

Hope this helps :)

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I drive 25 miles per day

divide the number of miles per day by the total miles to find how long it will take:

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6 0
3 years ago
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What is the difference between an algebraic expression and a linear expression?
Alik [6]

Step-by-step explanation:

A mathematical phrase that groups together numbers, variables, and operators, to show the value of something is called expression.

An expression is a sentence fragment that stands for a single numerical value. On the contrary, an equation is a sentence showing equality between two expressions.

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