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mars1129 [50]
4 years ago
7

Identify whether each equation has no solution, one solution, or infinitely many solutions.

Mathematics
1 answer:
butalik [34]4 years ago
5 0

Answer:

  1. infinitely many
  2. one solution
  3. no solution
  4. one solution

Step-by-step explanation:

1. 4x−x=2x+x

Simplifies to 3x = 3x, which is true for all values of x. Hence there are infinitely many solutions.

___

2. 2x+1=5

True only for x=2; one solution.

___

3. 4x+2=5x−x+4

Simplifies to ...

  4x +2 = 4x +4

  2 = 4 . . . . . . . not true for any value of x; no solution.

___

4. 2(x+4)=4(x+2)

Simplifies to ...

  2x +8 = 4x +8

  0= 2x . . . . . . . . . subtract 2x+8

True only for x=0; one solution.

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Is YZ tangent to circle x
inna [77]

<u>Given:</u>

The radius of the circle XY is XY = 11.4 in

The length of ZY is 15.2 in

The length of XZ is 19.6 in

We need to determine whether YZ is a tangent to the circle X.

<u>Is YZ tangent to the circle X:</u>

We shall determine whether YZ is a tangent to the circle X by using the Pythagorean theorem.

Thus, we have;

XZ^2=XY^2+YZ^2

Substituting the values, we have;

(19.6)^2=(11.4)^2+(15.2)^2

Simplifying, we get;

384.16=129.96+231.04

384.16\neq 361

Since, both sides of the equation are not equal, thus, YZ is not a tangent to the circle X.

4 0
4 years ago
What is seven less than a number squared
Orlov [11]
654321 easy 7 is less then that
4 0
3 years ago
How add with the same denominator ?
Amiraneli [1.4K]

Answer:

you just add the top numbers and then if its over the denominator you simplify

Step-by-step explanation:

7/9 + 4/9

10/9

1-1/9

7 0
3 years ago
The value of a boat is $23,400. it loses 8% of its value every year. find the approximate monthly percent decrease in value. rou
bonufazy [111]

Given: - 
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 Loss of value by boat per year = 8% 
 To find: -  Monthly percent decrease in value of boat.  
Solution: - Decrease of value per year = 8% of $23,400 = $1,872. Monthly decrease in value = $1,872/12 = $156. Monthly percentage decrease = ($156/$23,400) * 100 = 0.6667 or 0.67 (rounded to nearest hundredth)
8 0
3 years ago
There’s this one as well
Doss [256]

Answer:

V= area of cross-section x length

V = 0.5x(8x9) x 11

V = 396cm^3

Hope this helps!

6 0
3 years ago
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