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solmaris [256]
3 years ago
13

Graph the function. g(x)=-1/3(x+2)(x+8)

Mathematics
1 answer:
olasank [31]3 years ago
7 0
The vertex is (-5,3)
The focus is (-5,9/4)

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Coach went and bought 4 bats and 7 baseballs for $68 the next day bought one bat and one ball for 14 how much is each individual
Crazy boy [7]

Answer:

Baseballs is: $10

Bats is: $4

Step-by-step explanation:

Let x represent bats

and y represent baseballs

So we have :

(1) 4x + 7y = 68

(2) x + y = 14 => y = 14 - x

Use substitution.

Substitute equation (2) into equation (1)

4x + 7(14 - x) = 68

Solve for x

4x + 98 -7x = 68

-3x + 98 = 68

-3x = -30

x = 10

Solve for y, replace x = 2 into equation (2)

y = 14 - 10 = 4, so y = 4

Since x represents bats and y represents baseballs, it cost $10 for the bats and $4 for the baseballs.

3 0
3 years ago
Am I correct or wrong?
DochEvi [55]
I would say yes because like a triangle isn’t a polygon pentagon octagon are polygons
5 0
4 years ago
The perimeter of a rectangle changes from 2.5 to 10 after a dilation. What was the scale factor of the dilation?
kozerog [31]

Answer:

4

Step-by-step explanation:

To find the scale factor divide the new length by the original.

10/ 2.5 = 4

The scale factor is 4.

6 0
3 years ago
Work out the area of this cuboid 7.5cm 2.3 cm and 5cm
gizmo_the_mogwai [7]

Answer:

Below

Step-by-step explanation:

Area if cuboid =2(l*b+b*h+h*l)

= 2(7.5*5+5*2.3+2.3*7.5)

=2(37.5+11.5+17.25)

=2(66.25)

=103.75cm^3

6 0
3 years ago
Solve the equation<br><br> - 9x – 2y=-12<br> 2x+5y=-11<br><br> X=<br> Y=
inysia [295]

Answer:x=2, y=3

Step-by-step explanation:

solving this equation simultaneously

-9x - 2y=-12.............(1)

2x + 5y=-11.. ...........(2)

Using elimination method

Multiply equation 2 by 2 and equation 1 by 5

-45x -10y= -60...........(3)

4x + 10y=-22...............(4)

Subtracting equation 2 from 1

-41x + 0=-82

41x=82

x=82/41

X=2

To find y put x in equation 1

-9x - 2y= -12

-9(2)-2y=-12

-18-2y=-12

-2y=-12+18

-2y=6

Y= 6/2

Y=3

X=2, Y=3

3 0
4 years ago
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