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Sonbull [250]
3 years ago
5

Need help with question 3. ASAP PLS. Much appreciated :)

Mathematics
1 answer:
s2008m [1.1K]3 years ago
4 0
Emma is running faster than Maggie. The point on the graph where the two lines intersect represents the spot on the running track where Maggie and Emma are at the same distance from the starting point.
Since Emma starts ahead of Maggie, Maggie has to run FASTER to catch up with Emma.
I hope this helps :)
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What is the shortest driving distance from the animal shelter to the stadium?
Inessa [10]

Answer:

7 miles

Step-by-step explanation:

Four miles plus 3 miles = 7 miles


6 0
3 years ago
Pls help with 29..tank you
trapecia [35]

Answer:

See below

Step-by-step explanation:

Let the  2 roots be  A and A^2.

Then A^3 = c/a and A + A^2 = -b/a.

Using the identity a^3 b^3 = (a + b)^3 - 3ab^2 - 3a^2b:-

A^3 + (A^2)^3 =  ( A + A^2)^3 - 3 A.A^4 - 3 A^2. A^2

= (A + A^2)^3 - 3A*3( A + A^2)

Substituting:-

c/a + c^2/a^2 = (-b/a)^3 - 3 (c/a)(-b/a)

Multiply through by a^3:-

a^2c + ac^2 = -b^3 + 3abc

Factoring:-

ac(a + c) = 3abc - b^3

This is not the formula required in the question but let's see if the formula in the question reduces to this. If it does we have completed the proof.

a(c - b)^3 = a(c^3 - 3c^2b + 3cb^2 - b^3) = ac^3 - 3ac^2b + 3acb^2 - ab^3

c(a - b)^3 = c(a^3 - 3a^2b + 3ab^2 - b^3) = ca^3 - 3a^2bc + 3acb^2 - cb^3.

These are equal so we have

ca^3 - 3a^2bc + 3acb^2 - cb^3 = ac^3 - 3abc^2 + 3acb^2 - ab^3

The 3acb^2 cancel out so we have:-

a^3c - ac^3 =  3a^2bc - 3abc^2 + b^3c - ab^3

ac(a^2 - c^2) = 3abc( a - c) + b^3(c - a)

ac(a + c)(a -c) = 3abc(a - c) - b^3 (a - c)

Divide through by (a - c):-

ac(a + c) = 3abc - b^3 , which is the result we got earlier.

This completes the proof.

 

3 0
3 years ago
Read 2 more answers
The ratio of square H’s length to square I’s length is 3 : 5. If the length of square H is 18 meters, what is the perimeter of s
aleksandr82 [10.1K]
B. 54 meters

first you want to set up your ratios and cross multiply to figure out the number to square l's ratio. which would be 10.8.

then use formula for perimeter 
2(l)+2(w)=9
2(10.8)+2(18)=53.6-rounded =54<span />
6 0
3 years ago
A _____ is a function that assigns a numerical value to every possible outcome in a sample space.
swat32
The answer is:
 
 A Ramdom variable is a function that assigns a numerical value to every possible outcome in a sample space.
 
 It is a number that represents a result of an event or a random experiment. This variable does not depend on other factors and its values ​​are random, without a specific order. For example: when you roll a dice, the number that you get is a random variable, because in 6 attempts you may get 1,6,4,2,2,5 and then, in another 6 attempts, you may get 3,3, 6,2,1,6.
7 0
3 years ago
What is the remainder of the function f(x)=x^4-3x^3+7x-1 is divided by (x-2)
Basile [38]
The answer would be B

6 0
3 years ago
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