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Doss [256]
3 years ago
8

One number is 2 more than another. the difference between their squares is 60 what are the numbers

Mathematics
1 answer:
weeeeeb [17]3 years ago
3 0
Expand (x+2)^2: x^2 + 4x + 4 : remember that (a+b)^2 = a^2 + 2ab + b^2
So: x^2 + 4x + 4 - x^2 = 60
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Please answer! this is an important exam that im taking right now.
Scorpion4ik [409]

Answer:

Required ordered pair is (0,0) for system of equation

Step-by-step explanation:

The given system of equation is

A). 9^{12x} = 9^{3y}

B). y^{4} - 9y^{2} x^{2} =16y

On simplifying the equation A

9^{12x} = 9^{3y}

Take log on both side,

(12x) (log9) = (3y) (log9)

4x=y

To find the solution of the system of the equation :

Replacing value of y=4x in equation B,

y^{4} - 9y^{2} x^{2} =16y

(4x)^{4} - 9(4x)^{2} x^{2} =16(4x)

256x^{4} - 144x^{2} x^{2} =64x

256x^{4} - 144x^{4}=64x

112x^{4}=64x

We get,

x=0 and x=0.829

Since, 0.829 is not integer number

Only solution of equations is x=0

For the value of y

Replace value x in y=4x=0

Thus, Required ordered pair is (0,0)

8 0
4 years ago
Esteban bought a new stove for $986 on his credit card. He used the stove for eleven years before replacing it. The stove cost h
lianna [129]

Answer:

2166.53

Step-by-step explanation:

Price x 1.0822 = 1067.0492 <Price with tax

P= PV x i / 1- (1+i)^-n

^ x (identical monthly payments for 5 years aka 12 x 5)

average cost for electricity x (365 x years aka 11)

cost for maintenance x 11

Add all 3 answers

=2166.53

7 0
4 years ago
What is the approximate volume of the cylinder with a height of 5 and a diameter of 4? round to the nearest tenths place
Vlad [161]
Formula for volume of cylinder:
V=πr²h
Here height, h= 5 units
Diameter, d= 4 units
So, radius, r= d/2 = 4/2 =2 units
Put values in formula.
V= (3.14)(2)²(5)
V=62.8 Cubic units

Answer: 62.8 cubic units
5 0
4 years ago
The vector to fully describe the single transformation which takes triangle A to triangle​
shusha [124]

Answer:

<em>The translation vector from A to B is (-4,6)</em>

Step-by-step explanation:

A translation vector is a type of transformation that moves a figure in the coordinate plane from one location to another.

All the vertices of the figure are translated by the same vector, and the resulting figure is shifted horizontally and vertically.

The vertices of triangle A are:

(3,-1) (1,-4) (3,-4)

The corresponding vertices of triangle B are:

(-1,5) (-3,2) (-1,2)

Subtracting the vertices of B from vertices of A:

(-4,6) (-4,6) (-4,6)

Note they are result in the same translation vector, thus:

The translation vector from A to B is (-4,6)

4 0
3 years ago
Evelyn can text 78 words in 6 minutes. At this rate, how many minutes would it take her to text 156 words?
8_murik_8 [283]

156 words / 78 words = 2

2 * 6 = 12.

It would take Evelyn 12 minutes to text 156 words.

7 0
3 years ago
Read 2 more answers
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