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scoundrel [369]

4 years ago

13

For each function, y varies dirctly with x. Find each constant of variation. y=4 when x=-3

1 answer:

OlgaM077 [116]4 years ago

8 0

X=2 because I did this test today and got the answer from the teacher but if it was wrong idk

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Suppose that the function g is defined, for all real numbers, as follows.

lara [203]

Answer:

5/2

Step-by-step explanation:

g(-3) falls under x<=-1 so substitute -3 on x

-1/2(-3)+1

3/2+1

5/2

4 0

3 years ago

Your friend pad for 1/4 of a bill. How many eighths is that

valkas [14]

1/4 is equivalent to 2/8

7 0

3 years ago

Read 2 more answers

2/15 + 27/35 = what in reduced terms

solniwko [45]

2/15 + 27/35 = 14+81 /105 = 95/105 = 19/21

so, your answer is 19/21

8 0

4 years ago

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

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

5 0

4 years ago

On a piece of paper, graph y> -x+ 2. Then determine which answer matches<br> the graph you drew.

Semenov [28]

Answer:

Step-by-step explanation:

y> -x+ 2.

6 0

3 years ago