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zvonat [6]
2 years ago
15

a positive real number is 4 less than anther of the sum of the squares of the two numbers is 72 then find the numbers.​

Mathematics
1 answer:
ZanzabumX [31]2 years ago
6 0

Answer:

3.657 and 7.657 to the nearest thousandth.

Step-by-step explanation:

x - y = 4

x^2 + y^2 = 72

From equation 1

x = y + 4 so

(y + 4)^2 + y^2 = 72

y^2 + 8y + 16 + y^2 - 72 = 0

2y^2 + 8y - 56 = 0

y^2 + 4y - 28 = 0

y = 3.657.

so x = 7.657.

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inysia [295]
I'm 100% sure that the answer is C
5 0
3 years ago
Please help me with this ​
Gelneren [198K]

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5 0
3 years ago
The volume of a room that is 23 feet in W , 10 feet in D, and 8 feet in H is?​
Solnce55 [7]

The volume of the room is: 1840 ft^3

Step-by-step explanation:

The volume is the capacity of a given figure.

Given

Width = w = 23 feet

Depth = d = 10 feet

Height = h = 8 feet

The formula for volume is:

V = W*D*H\\= 23*10*8\\=1840\ ft^3

The volume of the room is: 1840 ft^3

Keywords: Volume, Box

Learn more about volume at:

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6 0
3 years ago
Help T-T plz (14 points)
olganol [36]

Answer:

The answer is 10.5 or 10 1/2

Step-by-step explanation:

1) A=LxW

2) the height is given but you do not have the width So Divide.

3) first turn the fraction into decimals

H= 12 1/4= 12.25

A= 128 5/8= 128.625

4) 128.625 divided by 12.25 Give you 10.5

5) you can change 10.5 into a fraction 10 1/2

hopes this helps.

8 0
3 years ago
Can someone please help me!!!
egoroff_w [7]
The correct answer is the first one(a): To get the system B,..., the first equation multiplied by 4...

Explanation:

1. Let us first multiple the first equation in System A with 4, we would get:
4(2x - y) = 4 * 3

=> 8x - 4y = 12 --- (A)

Now add the equation (A) and the second equation of System A:

8x  - 4y = 12
3x + 4y = 10
------------------
11x = 22 

Hence,
System B:
2x - y = 3
11x = 22

-i
5 0
3 years ago
Read 2 more answers
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