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Brums [2.3K]
3 years ago
13

Please answer as soon as possible.

Mathematics
1 answer:
Sholpan [36]3 years ago
8 0
A: $101.49
B: $109.39
C: He should apply the discount on the digital camera because it saves him more money.

Is the coupon being applied to the overall price or on a specific item?
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Write the standard form of the equation of the circle with center (8,−1) that passes through the point (6,7)
marshall27 [118]

Answer:

(x - 8)^2 + (y + 1)^2 = 68

Step-by-step explanation:

The standard form of the equation of the circle with center (8,−1) is :

(x - 8)^2 + (y + 1)^2 = R^2

If the circle passes through the point (6,7) that means that the point (6,7) is a solution of the equation and we can replace (x,y) with (6,7) to find R.

5 0
2 years ago
This is a picture of a cube and the net for the cube. What is the surface area of the cube? 78in 169in 507in or 1,014in
Stolb23 [73]

Answer:

1014 cm^2.

Step-by-step explanation:

There are 6 square faces on the cube and each face has area 13^2 = 169 cm^2.

The total area is 169 * 6 = 1.014 cm^2.

5 0
3 years ago
Read 2 more answers
The area of a rectangle is 504 square meters. If the perimeter is 90 meters, find the length and width of the rectangle.
o-na [289]

Answer:

Length =24m and width = 21m

Step-by-step explanation:

Given,

Area of rectangle, A = 504 m^2

Perimeter of rectangle, P = 90 m

Since we know, A = Length * width  and  P = 2(Length + width)

So, A = L * w

=> 504 = L*w     ------------------(1)

And P = 2(L + w)

=> 90 =2( L + w)    ----------------(2)

Plug L =504/w in equation 2

i.e.  90 = 2( 504/w + w)

or 45 = 504/w  +  w

or 45 = (504 + w^2 ) / w

or 45w = 504 + w^2

or w^2 - 45w + 504 = 0

On solving above quadratic equation we get:

w = 21 or 24

So we take width , w= 21 meter

Then length will be, L =504/21 =24 meter

Hence length and width of rectangle are 24m and 21m respectively.

5 0
3 years ago
How to solve axis of symmetry for quadratics
rjkz [21]
-b/2a will give you the axis of symmetry.
5 0
3 years ago
Read 2 more answers
Determine the better buy by comparing unit rates.
ANTONII [103]
To find the better buy we have to find the cost per pen for each.

1. 20 pens for $1.60 -> 1.60/20 = .08 cents per pen.
25 pens for $2.25 -> 2.25/25 = .09 cents per pen.

The best buy is 20 pens for $1.60 because it's cheaper per pen. 

2. 13 berries for $2.60 -> 2.60/13 = .20 cents per berry
17 berries for $3.06 -> 3.06/17 = .18 cents per berry

The best buy is 17 berries for $3.06 because it's cheaper per berry.
6 0
3 years ago
Read 2 more answers
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