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3 years ago

Which inequality has a dashed boundary line when graphed ?

Mathematics

1 answer:

nadezda [96]3 years ago

7 0

Answer:

Third inequality has dashed boundary.

Step-by-step explanation:

An equality has dashed boundary on graphing when it strictly less than or strictly greater than Symbolically ( < or > sign in the inequality)

boundary line is is solid line when the inequality is with symbol of equality also ( < = or > = )

Here we can see that all the inequalities except third one has symbol less than or equal to or greater than or equal to . And third inequality is with

symbol > (greater than ) that mean strictly less than ,therefore on graphing

third inequality gives dashed line boundary.

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What are geologists able to tell archaeologists about fossils?

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Answer:

C. . how old they are

Step-by-step explanation:

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They study Rocks, and it's deposit accumulated millions of years back.

They can also give account of what happened in the past and the types of organisms that existed in the past.

Fossils are traces of event, remains of dead animals and decomposed object.

So geologist can give account of how many years a particular fossil has lived in that particular environment.

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3 years ago

Find the surface area of the prism.<br> 7 yd<br> 7 yd<br> 7 yd

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Answer:

343 yd

Step-by-step explanation:

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2 years ago

two numbered 1 to 6 dice are thrown together and their scores are added. the probability that the sum will be 4 is?

natulia [17]

Answer:

$Pr = \frac{3}{36}$

Step-by-step explanation:

Given

2 number die

Required

P(Sum = 4)

The sample space of 2 die is:

$S = \{(1, 1) (1, 2) (1, 3) (1, 4) (1, 5) (1, 6), (2, 1) (2, 2) (2, 3) (2, 4) (2, 5) (2, 6)$

$(3, 1) (3, 2) (3, 3) (3, 4) (3, 5) (3, 6), (4, 1) (4, 2) (4, 3) (4, 4) (4, 5) (4, 6)$

$(5, 1) (5, 2) (5, 3) (5, 4) (5, 5) (5, 6), (6, 1) (6, 2) (6, 3) (6, 4) (6, 5) (6, 6)$

$n(S)= 36$

The pairs that adds up to 4 are:

$Sum(4) = \{(1,3), (2,2),(3,1)\}$

$n(Sum) =3$

So, the probability is:

$Pr = \frac{n(Sum)}{n(S)}$

$Pr = \frac{3}{36}$

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2 years ago

Use the spinner below to find the probability of getting the following number after 1 spin. P(multiple of 3) = (Round to 4 decim

Talja [164]

The value of the probability P(multiple of 3) is 0.3333

<h3>How to determine the probability?</h3>

The spinner that completes the question is added as an attachment

From the attached spinner, we have:

Total section = 12
Multiples of 3 = 4

The probability is then calculated as:

P(multiple of 3) = Multiples of 3/Total

This gives

P(multiple of 3) = 4/12

Evaluate

P(multiple of 3) = 0.3333

Hence, the value of the probability is 0.3333