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3 years ago

Graph the solution set for the inequality x-2/-3 ≤ -5/6

Mathematics

2 answers:

ZanzabumX [31]3 years ago

4 0

Answer: x ≤ 1/6
Explanation: Solve for x
by simplifying both sides of the inequality, then isolating the variable.

zhuklara [117]3 years ago

3 0

Answer:

x $\leq$ - 3/2 (The graph is the image I attached)

Explanation:

1) Determine the sign of the fraction next to the variable, in this case, it's positive, which turns the equation into : x + 2/3 $\leq$ - 5/6

2) Move the constant to the right so that x is only on one side, this then turns the equation into: x $\leq$ - 5/6 - 2/3

3) Subtract the fractions, and the answer is x $\leq$ -3/2

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A random sample of 100 people was taken. Eighty of the people in the sample favored Candidate A.

andre [41]

Answer:

Step-by-step explanation:

Given:

Number of samples, n = 100

let number of sample that favoured candidate A be x = 80

probability, p' = x/n = 80/100 = 0.8

probability, p for significance = 75% = 0.75

Using Z-proportion test statistics, we have

Z = $(p' - p)/\sqrt{p(1 - p)/n}$

Substituting the values, we have

Z = $(0.8 - 0.75)/\sqrt{0.75(1 - 0.75)/100}$

Z = 0.05 / 0.0433 = 1.1547

The p-value is

P(Z>1.1547) = 1 - P(Z≤1.1547)

Checking the Z-score table, P(Z≤1.1547) = 0.8789

Hence, we have 1 - 0.8789

= 0.1241

Hence, the p-value is greater than 0.05, so we cannot say it is very significant.

Hence, the population in favour of candidate A is not significantly greater than 75%

6 0

4 years ago

What error was made? -4(6 - b) = 4 -24 - 4b = 4 -4b = 28 b = -7

lisov135 [29]

Answer:

step 2; a negative times a negative = a positive.

Step-by-step explanation:

-4(6-b)=4

-24 +4b=4

4b=28

b=7

3 0

3 years ago

A company that offers tubing trips down a river rents tubes for a person to use for $20 and “cooler” tubes to carry food and wat

aivan3 [116]

The group rent 11 river rent tubes and 4 cooler tubes.

Step-by-step explanation:

Rent for river rent tube = $20

Rent for cooler tubes = $12.50

Total spent = $270

Total tubes rented = 15

Let,

x be the number of river rent tube.

y be the number of cooler tubes.

According to given statement;

x+y=15 Eqn 1

20x+12.50y=270 Eqn 2

Multiplying Eqn 1 by 20

$20(x+y=15)\\20x+20y=300\ \ \ Eqn\ 3$

Subtracting Eqn 2 from Eqn 3

$(20x+20y)-(20x+12.50y)=300-270\\20x+20y-20x-12.50y=30\\7.50y=30$

Dividing both sides by 7.5

$\frac{7.5y}{7.5}=\frac{30}{7.5}\\y=4$

Putting y=4 in Eqn 1

$x+4=15\\x=15-4\\x=11$

The group rent 11 river rent tubes and 4 cooler tubes.

Keywords: linear equations, subtraction

Learn more about linear equations at:

#LearnwithBrainly

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3 years ago

Which of the following is a correct interpretation of the expression -7 - (-11)

shepuryov [24]

Answer:a

Step-by-step explanation:

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3 years ago

How to make a array for 2/24

Dima020 [189]

Answer

Step-by-step explanation:

just say pog frog and hope you don't fail.

5 0

2 years ago