3 years ago

Two small questions...

Mathematics

1 answer:

AfilCa [17]3 years ago

7 0

You would have to find x first

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0.5 + (-1.5) - (-5.5) =

alexgriva [62]

Answer:

4.5

Step-by-step explanation:

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3 years ago

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Which statement about this system of equations is true?

Lunna [17]

Parallel lines have no solution

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3 years ago

A = bh/2 solve for b

rjkz [21]

$A = \dfrac{bh}{2}$

Cross multiply:
$2A = bh$

Divide by h on both sides:
$b = \dfrac{2A}{h}$

8 0

3 years ago

Last month, when Joe took his puppy to the veterinarian, the puppy weighed 4.8 pounds. This month, the puppy weighed 6.72 pounds

Anvisha [2.4K]

Answer:40% weight increase

Step-by-step explanation:

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3 years ago

A survey asked students whether they have any siblings and pets. the survey data are shown in the relative frequency table.

IceJOKER [234]

Answer:

The likelihood that he or she has a pet given that a student does not have a sibling is:

Option: D ( 60%)

Step-by-step explanation:

Let A denote the event that a student does not have a sibling.

Let B denote the event that a students has a pet.

Then A∩B denotes the event that the student does not have a sibling but has a pet.

Let P denote the probability of an event.

Then, we are asked to find:

P(B|A)

We know that:

$P(B|A)=\dfrac{P(A\bigcap B)}{P(A)}$

Also from the table we have:

P(A)=0.25

and P(A∩B)=0.15

Hence,

$P(B|A)=\dfrac{0.15}{0.25}\\\\P(B|A)=\dfrac{3}{5}\\\\P(B|A)=0.6$

which in percentage is:

$0.6\times 100=60\%$

Hence, the likelihood is:

60%

5 0

3 years ago