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2 years ago

9

A test has five questions. To pass the test, at least three of the questions must be answered correctly. question ----> Find

the probability that Mark guesses 4 questions correctly.

1 answer:

torisob [31]2 years ago

7 0

Answer:

1/5

Step-by-step explanation:

Total Question no. 5

Three must be answer correctly so 3/5 to pass

and 2/5 to fail

So 1/5 because to pass the test he can answer it correctly only one time

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Segment JK has a length of 4.5 units. If segment LM has end points of L (3,1) and M (-1,4), how much longer than segment JK is s

stepan [7]

Distance formula:
$d= \sqrt{ (x_{2}-x_{1}) ^{2}+( y_{2} - y_{1} )^{2}}\\ d= \sqrt{ (3-(-1)) ^{2}+(1 - 4 )^{2}}\\ d= \sqrt{ (4) ^{2}+(-3)^{2}}\\ d=\sqrt{16+9}\\ d=\sqrt{25}\\ d=5$

5 units-4.5 units=0.5 units

LM is 0.5 units longer than LM.

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2 years ago

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A family of five goes out to dinner and spends $114.10. This includes a 20% tip. How much did the family's server receive for a

Vaselesa [24]

Answer:

$19.01 I think

Step-by-step explanation:

you have to divide the total price by 120 because the family is paying what the food cost...the 100% and then they add 20% of that 100% to make 120%...therefore...when you divide the price by 120 you'll get 1%. Finally you multiply the 1% by 20 to find the tip.

$114.10 ÷ 120 = 0.95 × 20 = the tip ( $19.01 )

I'm sorry if that doesn't make sense

7 0

2 years ago

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Someone help me and remember to show your work so I know how to do it!

Monica [59]

(x^15)(x^-3) = x^(15 + (-3)) = x^12
n = 12

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3 years ago

Help me again I’m lazy again and giving brainliest if correct number 12

RSB [31]

the answer is 0 my g

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2 years ago

When compared with the independent variable, how many of the graphs represent a linear relationship?

Arada [10]

Answer:

2

Step-by-step explanation:

The first graph does not represent the linear relationship, because the slope of the line connecting points (3,60) and (4,90) is

$\dfrac{90-60}{4-3}=\dfrac{30}{1}=30$

and the slope of the line connecting points (4,90) and (5,110) is

$\dfrac{110-90}{5-4}=20$

Since slopes differe, this is not linear relationship. Simply, if you connect all points on the graph, they will not lie on the same line.

Two next graphs represent the linear relationships, so they represent the llinear relationship.

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3 years ago

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