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Lesechka [4]
3 years ago
15

What is (radical 75 y 19 ) in the simplest form.

Mathematics
1 answer:
Liono4ka [1.6K]3 years ago
3 0

Answer:

7519 is already in the simplest form. It can be written as 3.947368 in decimal form (rounded to 6 decimal places).

Step-by-step explanation:

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Solve algebraically the simultaneous equations<br><br> X^2 + Y^2 =25<br> Y-2X = 5
Georgia [21]

Answer:

Therefore the solutions are

x=0\\and\\ y =5\\\\Or\\\\x=-4\\and\\y=-3

Step-by-step explanation:

Given:

x^{2} + y^{2} =25 .........( 1 )

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

To Find:

x = ?

y = ?

Solution:

Substituting ' y ' in Equation  1 we get

x^{2}+(2x+5)^{2} =25

Using identity (A+B)²=A²+2AB+B² we get

x^{2}+4x^{2}+20x+25=25\\\\5x^{2}+20x=0\\5x(x+4)=0\\5x=0\ or\ x+4=0\\x=0\ or\ x= -4

Now Substitute x =0 in equation 2 we get

y=2\times 0+5=5

Or

Now Substitute x =-4 in equation 2 we get

y=2\times -4+5=-3

Therefore the solutions are

x=0\\and\\ y =5\\\\Or\\\\x=-4\\and\\y=-3

4 0
4 years ago
Three times a number plus three times a second number is fifteen. Four times the first plus twice the second number is fourteen.
Alexxx [7]

Answer:

x = 2 | y = 3. ( 2,3 )

Step-by-step explanation:

2(3x + 3y = 15)

6x + 6y = 30

3(4x + 2y = 14)

12x + 6y = 42

- 6x. -6y. -30

6x = 12

÷ 6. ÷6

x = 2

3x + 3y = 15

3(2) + 3y = 15

6 + 3y = 15

-6. -6

3y = 9

÷3. ÷3

y = 3

3 0
3 years ago
Today a car is valued at $42000. The value is expected to decrease at a rate of 8% each year. What is the value of the car expec
aleksandr82 [10.1K]
The formula is
A=p (1-r)^t
A future value?
P current value 42000
R rate of decreases 0.08
T time 6 years
A=42,000×(1−0.08)^(6)
A=42000 (0.92)^6
A=25,466.91 round your answer to get 25467

Hope it helps!
7 0
3 years ago
GOT ANOTHER QUESTION... WILL MAKE BRAINLIEST
Oksi-84 [34.3K]

Answer:

s= -1

Step-by-step explanation:

7= -10s-3

+3        +3

10=-10s

s= -1

4 0
3 years ago
Please help due in 30 minutes!
Alexeev081 [22]

Answer:

  • AB=2
  • CD=5
  • CAD=5
  • CBD=5

STEP-BY-STEP

8 0
3 years ago
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