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3 years ago

Please help guys please

Mathematics

1 answer:

puteri [66]3 years ago

8 0

Answer:

Sales tax: $352.50

Final Cost: $5052.50

Step-by-step explanation:

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What’s the answer to this equation?

Tresset [83]

Answer:

Part A) The graph in the attached figure

Part B) see the explanation

Step-by-step explanation:

Part A) Graph the function

we have the quadratic function

$y=3x^2-12x-36$

This is a vertical parabola open upward

The vertex is a minimum

using a graphing tool

The graph in the attached figure

Part B) What are the values of a, b and c?

we know that

The values of a and b represent the x-intercepts of the quadratic equation

The x-intercepts are

(-2,0) and (6,0)

$a=-2\\b=6$

Find the value of c

we know that

The x-coordinate of the vertex in a vertical parabola is equal to the midpoint of the roots

The value of c is equal to

$c=\frac{a+b}{2}$

substitute the given values

$c=\frac{-2+6}{2}=2$

see the attached figure

7 0

3 years ago

Bonnie bought 6 packs of red bouncy balls, 6 packs of yellow bouncy balls, and 2 packs of green bouncy balls. There were 11 boun

zubka84 [21]

6 ×11=66+6×11=66+2×11=22 add all the totals is 154 wich the answer

8 0

3 years ago

1/b+x=3b/2x^2 - 1/x<br>btw ^2 means square<br><br>

AlekseyPX

Answer:

$x = \frac{ - 3b}{4} \: or \: b$

Step-by-step explanation:

$\frac{1}{b + x} = \frac{3b}{2 {x}^{2} } - \frac{1}{x}$

$= > \frac{1}{b + x} = \frac{3b - 2x}{2 {x}^{2} }$

$= > 2 {x}^{2} = (b + x)(3b - 2x)$

$= > 2 {x}^{2} = 3 {b}^{2} - 2bx + 3bx - 2 {x}^{2}$

$= > 2 {b}^{2} = 3 {b}^{2} + bx - 2 {x}^{2}$

$= > 3 {b}^{2} + bx - 4 {x}^{2} = 0$

$= > 3 {b}^{2} + 4bx - 3bx - 4 {x}^{2} = 0$

$= > b(3b + 4x) - x(3b + 4x) = 0$

$= > (3b + 4x)(b - x) = 0$

Hence,

$x = \frac{ - 3b}{4} \: or \: b$

8 0

3 years ago

Hitch is bigger , one seventh of 14 or half of 36

skelet666 [1.2K]

One seventh of 14 = 9.8 and half of 36 is 18 so half of 36 is larger

3 0

3 years ago

What is the value of 6/1+i?

just olya [345]

Answer:

6/1+i= 6 + i

Step-by-step explanation:

6 0

3 years ago