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3 years ago

Which equation has no solution?

Mathematics

2 answers:

Firdavs [7]3 years ago

3 0

A, because the absolute value is always non negative.

son4ous [18]3 years ago

3 0

|4x - 2| = -6 is your answer.

Solve each equation:
|4x - 2| = -6
The equation has no solution because absolute value equations are always positive.

|-2 - x| = 9
-2 - x = 9 or -2 - x = -9

-2 - x = 9
-x = 11
x = -11

-2 - x = -9
-x = -7
x = 7

x = -11 or x = 7.

|3x + 6| = 6
3x + 6 = 6 or 3x + 6 = -6

3x + 6 = 6
3x = 0
x = 0

3x + 6 = -6
3x = -12
x = -4

x = 0 or x = -4.

|-2x + 8| = 0
-2x + 8 = 0
-2x = -8
x = -4.

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A group of 444 friends is playing cards. The deck has 707070 cards. To start the game, the dealer makes a pile of 151515 cards i

Alik [6]

Answer:

The correct answer is 14 not 17 or 7

Step-by-step explanation:

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3 years ago

#1. Factor the expression. 4g^2+21g-49

juin [17]

1. You want to find factors of 4×(-49) that add to 21. Those would be +28 and -7. Replacing the term 21g with the sum 28g -7g, we get an expression that can be factored by grouping.

... (4g² +28g) + (-7g -49)

... = 4g(g +7) -7(g +7) = (4g-7)(g+7)

2. After you factor out 5, you have 5(64y² -16y -15). As in the previous problem, you're looking for factors of 64×(-15) = -960 that sum to -16. There are 14 factor pairs of 960, so it can take a little bit of effort to find the right pair. That pair is -40 and 24. As in the previous problem you replace the term -16y with the sum -40y +24y and factor by grouping.

... = 5(64y² -40y +24y -15) = 5(8y(8y -5) +3(8y -5))

... = 5(8y +3)(8y -5)

3. False. It is perhaps easiest to check this by multiplying out the offered factors. Doing that gives you 36k² -36k +8k -8. The collected k terms add to -28k, not -44k.

4 0

4 years ago

RST with vertices R(–2, 3), S(1, 2), and T(2, –1) is rotated 270° counterclockwise about the origin.

photoshop1234 [79]

Answer:

vertices are rotation by 270° about the origin

R¹( 3, 2), S¹( 2, -1) and T¹ (-1,- 2)

Step-by-step explanation:

Explanation:-

The rule for a rotation by 270° about the origin is

( x,y) → (y,-x)

Given vertices are R(–2, 3), S(1, 2), and T(2, –1)

Given vertices are rotation by 270° about the origin

R¹( 3,-(-2)) , S¹( 2 , -1) and T¹ (-1 , -(2))

R¹( 3, 2), S¹( 2,-1) and T¹ (-1,- 2)

3 0

3 years ago

Name a career in which one would have to use the phythagorean theorem.Give an example of when and how it would be used.Please wr

DanielleElmas [232]

Answer:

The careers that use Pythagoras theorem are mentioned below.

Step-by-step explanation:

The Pythagoras theorem states that the sum of squares of the two sides of right angled triangle is equal to the square of the length of the hypotenuse.

Let a, b and c be the sides of a right triangle where c is the length of the hypotenuse.Then

$a^{2}+b^{2}=c^{2}$

Pythagoras theorem is used in daily life situations.

A surveyor looks through a telescope toward a measuring stick a fixed distance away, so that the telescope's line of sight and the measuring stick form a right angle.

It is also used to calculate the steepness of slopes and mountains.

8 0

3 years ago

What is the next number in sequence 364861210?

Ainat [17]

Hello,

Shall we begin?

364,861,210

n + 1 = 364,861,210 + 1 = 364,861,211

Answers: 364,861,211

8 0

3 years ago