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maw [93]
2 years ago
14

Solve for z: -42z^2 = 14z

Mathematics
2 answers:
schepotkina [342]2 years ago
4 0

\\ \rm\Rrightarrow -42z^2=14z

\\ \rm\Rrightarrow 42z^2=-14z

\\ \rm\Rrightarrow 3z^2=-z

\\ \rm\Rrightarrow 3z=-1

\\ \rm\Rrightarrow z=-1/3

  • Another root is 0
Fiesta28 [93]2 years ago
4 0

Answer:

- \frac{844}{29} z

Step-by-step explanation:

I hope to help

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Lulu has exactly enough fencing to go around her rectangular garden. She has 40 m of fencing and the garden is 8 m wide. What is
vesna_86 [32]

Answer:12 m

Step-by-step explanation:

Given

Width of garden W=8\ m

Total fencing T=40\ m

If Lulu has enough fencing to go around her rectangular garden then , it should be equal to perimeter of garden

Suppose L is the length of garden

Therefore perimeter is P=2(L+W)

2(L+W)=40

L+W=20

L=20-8=12\ m

thus length of fencing is 12\ m

4 0
4 years ago
What is the solution when the equation y=4x+13 is evaluated at x = 4
Marta_Voda [28]

Answer:

29

Step-by-step explanation:

If x = 4, then y = 4x + 13 can be written as the following:

y = 4(4) + 13

y = 16 + 13

y = 29

Hope this helps!

7 0
3 years ago
Read 2 more answers
Value of x is less than 14
nalin [4]

Hey there!

Value of x is less than 14 would look like this:

x < 14

Hope this helps you!

God bless ❤️

xXxGolferGirlxXx

4 0
3 years ago
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Help me with this question
Aleksandr [31]

Answer:

65, 90, 30, 24(in order abcd)

Step-by-step explanation:

The sum of all angles in a triangle is 180 degrees, so knowing this, you should be able to get all of them.

1) x+65+50 = 180, so x= 65

2)x+34+56 =180, so x= 90

3)90+3x=180, so x=30

4)90+66+x=180, x=24

7 0
3 years ago
Read 2 more answers
What is a simpler form of the radical expression?
adoni [48]
∛125x^21y^24

Split them up:
∛125 * ∛x^21 * ∛y^24

∛125 = 5
∛x^21 = x^7           21/3 = 7
∛y^24 = y^8           24/3 = 8

The simpler form of the radical expression: ∛25x^21y^24 is: <span>D. 5x^7y^8</span>
5 0
4 years ago
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