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2 years ago

13

Which equation has no solution?

2 answers:

Firdavs [7]2 years ago

3 0

A, because the absolute value is always non negative.<span />

son4ous [18]2 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 <em>or</em> -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 <em>or </em>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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iren2701 [21]

Answer:

(4,-8) and (4, 12)

Step-by-step explanation:

The equation of the hyperbola given is:

$\frac{(y-2)^2}{64}-\frac{(x-4)^2}{36}=1$

The general form of this hyperbola would be:

$\frac{y^2}{a^2}-\frac{x^2}{b^2}=1$

Thus, we can see that:

a^2 = 64

a = 8

and

b^2 = 36

b = 6

The distance from one focus to center is called "c", it goes by formula:

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

Let's find c:

$c^2=8^2 + 6 ^2\\c^2=100\\c=10$

This is a vertical hyperbola and the center is found from the x and y's on the numerator:

(y-2)^2 means y = 2

(x-4)^2 = x = 4

Center is (4, 2)

We go 10 units vertically up, so from y = 2 , ten units up makes it y = 12

x = 4 and y = 12

(4,12)

We go 10 units vertically down, so from y =2, ten units down makes it y = -8

x = 4 and y = -8

(4, -8)

<u>Foci coordinates:</u>

<u>(4,12) and (4,-8)</u>

3 0

2 years ago

Read 2 more answers

Kai calculates that he spends 15% of the school day in science class. If he spends 42 minutes in science class, how many minutes

MissTica

You need to first multiply 100 by 42 then divide by 15

6 0

2 years ago

What is the area of the triangle? (:

Ber [7]

Answer:

Area of triangle = 1/2 base x height

OR

Area = 1/2 bh

Step-by-step explanation:

3 0

2 years ago

A school survey found that 7 out of 30 students walk to

nika2105 [10]

Answer: 7/145

Step-by-step explanation:

The probability that the first student walks to school will be: = 7/30.

The probability of selecting the second student that walks to school will be: = 6/29.

Then we multiply both together and this will be:

= 7/30 × 6/29

= 7/145

5 0

3 years ago

Please help me, i promise its worth it!!!

Rashid [163]

$\\ \sf\longmapsto 2(L+B)=55$

$\\ \sf\longmapsto 2(\dfrac{4}{3}x+x)=55$

$\\ \sf\longmapsto \dfrac{8}{3}x+2x=55$

$\\ \sf\longmapsto \dfrac{8x+6x}{3}=55$

$\\ \sf\longmapsto \dfrac{14x}{3}=55$

$\\ \sf\longmapsto 14x=165$

$\\ \sf\longmapsto x=11.78$

$\\ \sf\longmapsto x\approx 12$

Now

B=x=12
L=4/3(12)=4(4)=16

5 0

2 years ago

Read 2 more answers