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3 years ago

3z+(-4)=-1 how would you find your answer to what is z?

Mathematics

2 answers:

Masja [62]3 years ago

5 0

Answer:

z=1

Step-by-step explanation:

3z+(-4)=-1

Add 4 to each side

3z+(-4) +4=-1+4

3z = 3

Divide each side by 3

3z/3 = 3/3

z=1

olchik [2.2K]3 years ago

3 0

Happy Valentines Day!

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Solution and Steps:

3z + (-4) = -1 Problem.

3z + (-4) + 4 = -1 + 4 Add 4 to both sides.

3z = 3 Simplify.

3z/3 = 3/3 Divide 3 to both sides.

z = 1 Simplify

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Answer:

z = 1

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Hope This Helps :)

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A study was conducted to determine whether there were significant differences between medical students admitted through special

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Answer:

$P(X\geq 9)=P(X=9)+P(X=10)$

And using the probability mass function we got:

$P(X=9)=(10C9)(0.913)^9 (1-0.913)^{10-9}=0.383$

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And replacing we got:

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Step-by-step explanation:

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Where (nCx) means combinatory and it's given by this formula:

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We want to find the following probability:

$P(X\geq 9)=P(X=9)+P(X=10)$

And using the probability mass function we got:

$P(X=9)=(10C9)(0.913)^9 (1-0.913)^{10-9}=0.383$

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4 years ago

Simplify 1)5x+3=x+13 2)5/2x-1/X =1/6

Artyom0805 [142]

Step-by-step explanation (Question 1):

Step 1: (Question 1): Subtract x from both sides.

5x+3=x+13

5x+3−x=x+13−x

4x+3=13

Step 2: (Question 1): Subtract 3 from both sides.

4x+3−3=13−3

4x=10

Step 3: (Question 1): Divide both sides by 4.

4x/4 = 10/4

FIRST ANSWER: x = 5/2

Step-by-step explanation (Question 2):

Step 1: (Question 2): Multiply by LCM

15x^2 - 6 = x

Step 2: (Question 2): Solve 15x^2

15x^2 - 6 = x:

x = 2/3

x = -3/5

Step 3: (Question 2): Solve

ANSWER: x=0.666667 or x=−0.6

See Attachment 1 for question 1 steps (FULL)

See Attachment 2 for question 2 steps (FULL)

Answer:

1) x = 5/2

2) x=0.666667 or x=−0.6

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