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2 years ago

Solve for z 7z < 21 z=

Mathematics

1 answer:

Step2247 [10]2 years ago

3 0

Answer:

z=5

Step-by-step explanation:

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Solve for x.

denis-greek [22]

Answer:

$\frac{3\±\sqrt{3}}{3}$

Step-by-step explanation:

Whe have the function $3x^2-6x+2=0$

To solve this equation we must factor.

To factor, we need to find the points where the function is equal to zero. So we use the quadratic formula

$\frac{-b\±\sqrt{b^2-4ac}}{2a}$

Where:

a = 3

b = -6

c = 2

Then

$\frac{-(-6) + \sqrt{(-6)^2-4(3)(2)}}{2(3)} = \frac{3+\sqrt{3}}{3}\\\\and\\\\\frac{-(-6) - \sqrt{(-6)^2-4(3)(2)}}{2(3)}= \frac{3-\sqrt{3}}{3}$

finally the correct answer is $\frac{3\±\sqrt{3}}{3}$

5 0

2 years ago

Read 2 more answers

An editor has a stack of k documents to review. The order in which the documents are reviewed is random with each ordering being

ladessa [460]

Using the probability concept, it is found that there is a $\mathbf{\frac{1}{k}}$ probability that “Relaxation Through Mathematics” is first to review.

A probability is given by the number of desired outcomes divided by the number of total outcomes.

In this problem:

There is a total of k documents to be reviewed, hence $T = k$ .
Of those documents, 1 is named “Relaxation Through Mathematics”, hence $D = 1$

The probability is:

$p = \frac{D}{T} = \frac{1}{k}$

A similar problem is given at brainly.com/question/24483829

8 0

2 years ago

Math question please help If you get this right I will mark you as a brainliest

irinina [24]

The answer is 23.3
Is that the answer of d

8 0

2 years ago

Evaluate this expression for a = 3 and b = 4.

ahrayia [7]

Answer:

Step-by-step explanation:

a = 3

b = 4

$b(a + 4)-3(3 + 2)+3 - 2\\a = 3,b=4\\4(3+4)-3(5)+3 - 2\\4(7)-15+3 - 2\\28-14\\\\14$

8 0

3 years ago

F(x)=6x-3 graph the function in inverse

Digiron [165]

Answer:

See attachment.

Step-by-step explanation:

f(x) = 6x - 3

y = 6x - 2

Switch out x for y.

x = 6y - 2

Solve for y.

x + 2 = 6y

$\frac{x+2}{6}$ = y

Graph.

5 0

2 years ago