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alekssr [168]
3 years ago
6

What is the value of the function y=2x−3ywhen x=−1x=−1 ?

Mathematics
2 answers:
tensa zangetsu [6.8K]3 years ago
5 0
The answer is y = -5
y = 2(-1) - 3
y = -2 - 3
y = -5
Lena [83]3 years ago
4 0

You made a typo in your question.

The equation should be y = 2x - 3.

y = 2(-1) - 3

y = -2 - 3

y = - 5

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A sample of 5 integers selected is shown. Does this sample represent the general rule for picking an integer from 1 to 25 in the
Anit [1.1K]

Answer:

No

Step-by-step explanation:

The general rule for picking sample from a population at random ensures that all members of the population have equal chances of being selected.

Therefore to select 5 samples in the range 1 - 25 from a population of integers from 1 - 1000.

Firstly, befure we start selecting our samples directly from the population since we are not interested in all integers, we seperatw the integers belonging to our target samples from the population first, the we select 5 samples out of the sepwratwd integers between 1 - 25. This ensures that all our 5 samples will have integers between 1 - 25 becausw integers 1 - 25 is the range we want our specs to be within and not between 1 - 100.

However, from the trial samples recorded none of the samples have integer between 1 - 25 ; jnecw, the samples must have been chosen directly from the entire population of 1 - 1000

8 0
3 years ago
Evaluate the expression when c=6 and d=5.<br> d+ 8c
Elza [17]

Answer:

53

Step-by-step explanation:

when c=6 and d=5 we want to substitute the variables with the numbers in the equation so we'll have

(5) + 8(6)

after evaluating we come up with the answer 53

3 0
3 years ago
One card is randomly selected from a deck of cards. Find the odds against drawing a spade greater than 2 and less than 8.
scoray [572]

Answer:

The odds against drawing a spade greater than 2 and less than 8 is \frac{5}{47}.

Step-by-step explanation:

Total number of cards in a standard deck of cards = 52

Total number of cards of each suit (Spade, club,heart, diamond)=13

Total number of spade cards, which are greater than 2 and less than 8 = 5

We need to find the odds against drawing a spade greater than 2 and less than 8.

Let event A be the total number of cards which are greater than 2 and less than 8

Favorable outcomes:

A' = 52 - 5 = 47

Unfavorable outcomes:

A = 5

Formula for odds

Odd=\frac{favorable}{unfavorable}

Odd=\frac{5}{47}

Therefore the odds against drawing a spade greater than 2 and less than 8 is \frac{5}{47}.

5 0
4 years ago
-2x+y+4z=5<br> x+3y-z=2<br> 4x+y-6z=11
Damm [24]
-8 if you search it just use calculater
4 0
3 years ago
I PROMISE YOU, FIRST PERSON TO ANSWER IT 'CORRECTLY' GETS BRAINLY. Monica found a pair of skis that cost $122 more than the time
Troyanec [42]

Answer:

$75 for the sled. (I don't understand "more than the times the cost of the sled")

Step-by-step explanation:

I don't understand "more than the times the cost of the sled" but if you were trying to figure out the cost of the sled, then it would be:

197-122=

75

3 0
3 years ago
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