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4 years ago

I need help to figure out this question

Mathematics

2 answers:

ololo11 [35]4 years ago

8 0

I think it would be 16.95 Hope this help you in someway.

otez555 [7]4 years ago

5 0

The correct answer is $16.95. Please mark BRAINLIEST!:)

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X 5.2.19

Semmy [17]

Answer:

Step-by-step explanation:

y = ax² + bx + c

Plug the points into the equation to get a system of 3 equations with 3 unknowns a, b, and c.

-27 = 4a - 2b + c

-42 = 9a + 3b + c

-12 = a + b + c

(a,b,c) = (-4,1,-9)

y = -4x² + x - 9

7 0

3 years ago

X f(x)

lubasha [3.4K]

Remember slope formula is y=mx+b m is the slope b is the y intercept

Part a-1+5/0+1 = 4/1 that just equals 4 slope of g(X) is 4

part b y = 4x + b -1 = 4(0) + b -1 = b so y = 4x - 1

the function g(x) has a bigger y intercept (or where it crosses y on a graph) y intercept of g(x) is 3 and the y intercept of f(x) is -1

This really helps if you graph it

5 0

4 years ago

Read 2 more answers

Silvio works at a car wash. He earns $50 per day and $12 per car washed. Silvio wants to earn at least $158 in 1 day.

iren [92.7K]

Answer:

50+12x≥158

Step-by-step explanation:

starting with $50, adding $12 for every car washed (x), must be at least, but can be greater than, $158.

5 0

3 years ago

A point G on a segment on a segment with endpoints F(4, 8) and H(10, 12) partitions the segment in a 3:4 ratio. Find G. You must

Andru [333]

Suppose, we are given

two points as

F as (x1, y1)

H as (x2, y2)

assume it divides in m/n

we can use formula

$G=(x,y)=(\frac{mx_2+nx_1}{m+n}, \frac{my_2+ny_1}{m+n})$

now, we are given points as

F=(x1, y1)=(4,8)

$x_1=4,y_1=8$

H=(x2, y2)=(10,12)

$x_2=10, y_2=12$

$\frac{m}{n} =\frac{3}{4}$

so,

$m=3,n=4$

now, we can find

$x=(\frac{3*10+4*4}{3+4}, y=\frac{3*12+4*8}{3+4})$

$x=\frac{46}{7} , y=\frac{68}{7}$

so, point is

$G=(\frac{46}{7} , \frac{68}{7})$ .................Answer

7 0

3 years ago

In a designated VIP seating section there must be an odd number of seats in each row and each row must have two more seats than

Vikki [24]

Let n be the total number of rows and there are x seats is the 1st row where x is an odd natural number.

As each row must have 2 more seats than the one before it, so

Number of seats in 2nd row = x+2

Number of seats in 3rd row = x+2+2=x+2x2

Number of seats in 4th row = x+2+2+=x+2x3

Similarly, the number of seats in (n-1)th row =x+2x(n-1)

the number of seats in n^{th} row, i.e last row =x+2x n.

As the front row must have one-quarter of the total seats in the back 2 rows combined, so

$x =\frac 1 4 ( x+2\times(n-1) + x+2\times n) \\\\\Rightarrow 4x=2x+4n-6 \\\\\Rightarrow 4x-2x=4n-6 \\\\\Rightarrow 2x=4n-6 \\\\\Rightarrow x=2n-3\cdots(i)$

So, the number of seats in the 1st row, x, and the total number of seats, n, must satisfy the equation (i).

For $x>0, n\geq 3.$

So, for n=3 rows

The number of seats in the 1st row, x= 2x3-3=3.

The number of seats in the 2nd row, = 3+2=5 as in subsequent rows, there will be 2 more seats.

and the number of seats in the 3rd row (last row)=5+2=7.

n can have any integral values satisfying $n\geq 3$ .

3 0

3 years ago