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3 years ago

PLZ DO EXACTLY AS STATED, WILL GIVE BRAILIEST AND 30 POINTS!!

Mathematics

1 answer:

dsp733 years ago

3 0

Answer:

bro just did this on a TGA

Step-by-step explanation:

A. no solutions and a contradiction

B. infinate solutions and an identity

C. one solution and niether

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Sarah runs at a pace of 6 miles in 2 hours. Assume Sarah keeps this constant pace. How long will it take her to run 24 miles

Verdich [7]

Answer:

8 hours

Step-by-step explanation:

6 miles every 2 hours so 6x4= 24 miles 2x4=8 hours

5 0

3 years ago

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Find a polynomial of the form

Sloan [31]

Answer:

$f(x)=-\frac{1}{4}x^3-\frac{1}{6}x^2+\frac{65}{12}x-3$

Step-by-step explanation:

We are given that

$f(x)=ax^3+bx^2+cx+d$

f(0)=-3,f(1)=2,f(3)=5 and f(4)=0

We have to find the polynomial

Substitute the value x=0 then ,we get

f(0)=d=-3

Substitute x=1 then we get

$a+b+c-3=2$

$a+b+c=2+3=5$

$a+b+c=5$ (equation I)

Substitute x=3 then we get

$a(3)^3+b(3)^2+c(3)-3=5$

$27a+9b+3c=5+3=8$

$27a+9b+3c=8$ (Equation II)

Substitute x=4 then we get

$a(4)^3+b(4)^2+c(4)-3=0$

$64a+16b+4c=3$ (Equation III)

Equation I multiply by 3 then subtract from equation II

$24a+6b=-7$ (Equation IV)

Equation II multiply by 4 and equation III multiply by 3 and subtract equation II from III

$84a+12b=-23$ (Equation V)

Equation IV multiply by 2 and then subtract from equation V

$36a=-9$

$a=-\frac{9}{36}$

$a=-\frac{1}{4}$

Substitute the value of a in equation IV then we get

$24(-\frac{1}{4})+6b=-7$

$-6+6b=-7$

$6b=-7+6=-1$

$b=-\frac{1}{6}$

Substitute the value of b in equation I then we get

$-\frac{1}{4}-\frac{1}{6}+ c=5$

$-\frac{5}{12}+c=5$

$c=5+\frac{5}{12}=\frac{65}{12}$

Substitute the values then we get

$f(x)=-\frac{1}{4}x^3-\frac{1}{6}x^2+\frac{65}{12}x-3$

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4 years ago

A jar contains 5 blue marbles, 2 black marbles, and 7 brown marbles.

ch4aika [34]

Answer:

5/13

five blue marbles, but one blue removed thus 5/13

Step-by-step explanation:

7 0

3 years ago

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Which of the following expressions represents the perimeter of the figure below?

Ulleksa [173]

The perimeter is D because you have to add all the sides up. 2 + 2 and 3 plus 3 equals 10x and then 8 + 8 and 2 + 2 equals 20 so 10x- 20.

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2 years ago

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This company will begin to make a profit after producing more than ______ units.

grandymaker [24]

The costs equal one another at approximately 2450 units. After that, you can see that the revenue line has a much steeper slope than the cost line and that means that revenue is greater than the costs after the point where they intersect. They begin to make a profit after 2450 units are produced.

3 0

4 years ago