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ira [324]
3 years ago
12

Correct answer gets brainliest and full ratings, I really need help with these :(

Mathematics
2 answers:
igor_vitrenko [27]3 years ago
4 0
The symbol \leq means x is less than or equal to a certain value (in this case, 4). 

Your first step is to find 4 on the x axis, because your inequality is for x (This eliminates the first 2 answers, as they solve for y). You know x can be equal to 4, so you make a solid, vertical line through that value (the line is vertical because the y value can be anything because it is not in the inequality). 


Next, x can be less than 4, not greater, so you shade to the left of the line (this is were the smaller numbers are). 

It is always wise to test a point to make sure you shaded in the correct direction. (0, 0) is a nice simple one. You plug in your value(s)... and 0 is indeed less than or equal to 4, so you know you shaded in the correct direction.

Hope this helps.
iren [92.7K]3 years ago
4 0
The answer is c hope this helped you
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Allison measured a line to be 5.4 inches long. If the actual length of the line is 5.5 inches, then what was the percent error o
valentina_108 [34]

Answer:

1.85%

Step-by-step explanation:

→ Find the difference between the actual and predicted

5.5 - 5.4 = 0.1

→ Divide answer by 5.4

0.1 ÷ 5.4 = 0.01851851851

→ Multiply answer by 100

0.01851851851 × 100 = 1.85%

7 0
2 years ago
An expression is shown.<br>2 3/4 x 2/3<br>What is the value of the expression?​
Novay_Z [31]

Answer:

The answer is 1 5/6

Step-by-step explanation:

5 0
3 years ago
M-80=150,doing homework
Umnica [9.8K]
M=230
m-80=150
add 80 to each sides
6 0
3 years ago
What is the y-intercept of the line that is
DaniilM [7]

Answer:

The y-intercept of the line would be (C) 8

Step-by-step explanation:

The slope of the line with the equation y = -3x - 5 is -3. When figuring out a slope perpendicular to another line you would use the negative reciprocal of the slope which would lead to the slope of the line to be 1/3.

We know it passes through the point (-3,7), substituting x and y, we would then get our new equation, (7) = \frac{1}{3}( -3) + b.

Solve the equation by multiplying -3 with 1/3 and the product would be -1. Add negative one on both sides and you would get 8 = b.

3 0
2 years ago
A bag has 3 red marbles, 2 blue, 4 greens and 1 yellow. What is the probability of pulling a blue, putting it back
Tomtit [17]

Answer: 2/25

Step-by-step explanation: Since we are replacing the marbles, these two events are independent which means that the outcome of the first does not affect the outcome of the second.

First find the probability of selecting a blue marble.

There are 2 favorable outcomes, the blue marbles,

and 10 possible outcomes, all the marbles in the bag.

So the probability of selecting a blue marble is 2/10 or 1/5.

<em>Always reduce when finding probability</em>

<em></em>

Now we find the probability of selecting a green marble.

There are 4 green marbles and 10 total so the probability of

selecting a green marble is 4/10 or 2/5.

Now we multiply the probabilities.

So we have 1/5 x 2/5 or 2/25.

3 0
3 years ago
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