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2 years ago

X/3 = -2 i dont know how to do this

Mathematics

1 answer:

4vir4ik [10]2 years ago

6 0

Answer:

-6

Step-by-step explanation:

3*x/3=-2*3

^-- times both sides by the denominator (3)

the threes on the left side of the equal sign will cancel themselves out. you are thn left with

x=-2*3

-2*3=-6

x=-6

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3. Suppose the mystery bag had resulted in the following number of red chips. Using the simulated sampling distributions found e

Vinvika [58]

Answer:

a) 0.172

b) 0.167

c) 0.1404

Step-by-step explanation:

Margin of error, E = $2\times\sqrt{\frac{p(1-p)}{n}}$

here,

p = probability of the event

n = sample size

a) n = 30

p = 10 ÷ 30 = 0.333

Therefore,

E = $2\times\sqrt{\frac{0.333(1-0.333)}{30}}$

= 2 × 0.0861

= 0.172

b) n = 30

p = 21 ÷ 30 = 0.7

Therefore,

E = $2\times\sqrt{\frac{0.7(1-0.7)}{30}}$

= 2 × 0.0836

= 0.167

c) n = 30

p = 22 ÷ 50 = 0.44

Therefore,

E = $2\times\sqrt{\frac{0.44(1-0.44)}{50}}$

= 2 × 0.0702

= 0.1404

3 0

3 years ago

Given C is the midpoint of BD.

Nataly_w [17]

Answer:definition of midpoint, angle BCA is congruent to angle DCA

4 0

3 years ago

jeb has to pay a plumber $65 to come to his house and $40 per hour after that. how many hours did the plumber work if jeb paid h

Verdich [7]

Let x be the amount of hours the plumber worked.
Therefore, we get:
40x+65=325
Solve for x.
40x=260
x=6.5
Therefore, the plumber worked for 6.5 hours.

3 0

3 years ago

Read 2 more answers

A regular pentagon has an exterior angle with a measure of 20 degrees find number of sides

Harlamova29_29 [7]

ans: there are 5 sides

pentagon is a five sided polygon

8 0

3 years ago

Select the correct answer.

scoundrel [369]

Answer:

Option C

Step-by-step explanation:

Difference of the two expressions has been written as,

$\frac{3x}{x^2-7x+10}-\frac{2x}{3(x-5)}$

To rewrite this expression as one expression,

First he factored the the denominators,

$\frac{3x}{(x-2)(x-5)}-\frac{2x}{3(x-5)}$

Then Juan will make the denominators of both the terms equal,

For which he will multiply the second expression by $\frac{x-2}{x-2}$ .

$\frac{3x}{(x-2)(x-5)}-\frac{2x(x-2)}{3(x-5)(x-2)}$

Option C will be the correct option.

8 0

2 years ago