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2 years ago

Which statement best describes the expression 2 + 3 = y

Mathematics

1 answer:

ollegr [7]2 years ago

4 0

Answer:

The sum of 2 and the quotient of 3 and y

Step-by-step explanation:

Given:

2 + 3 ÷ y

According to BODMAS

Bracket

Division

Multiplication

Addition

Subtraction

Division comes first

2 + 3/y

The sum of 2 and the quotient of 3 and y

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I NEED ANSWER ASAP WILL GIVE BRAINLIEST(WORTH 30 POINTS)

Nadusha1986 [10]

Answer: b

Step-by-step explanation:

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2 years ago

5) Using the terms "input" and "output" and the definition of a function, explain why this relationship is or is

Aleks [24]

Answer:

This relationship is a function

Step-by-step explanation:

While a function may not have two output values (y) assigned to the same input value (x), it may have two input values (x) assigned to the output value (y).

The table follows that rule

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2 years ago

3. Theresa has 20 coins that are dimes and quarters. Together

KiRa [710]

Answer:

15 dimes
5 quarters

Step-by-step explanation:

Let q represent the number of quarters Theresa has. Then the value of her coins is ...

0.25q + 0.10(20 -q) = 2.75

0.15q = 0.75 . . . . . . . . . subtract 2.00, collect terms

q = 0.75/0.15 = 5

Theresa has 5 quarters and 15 dimes.

3 0

3 years ago

Consider a binomial distribution of 200 trials with expected value 80 and standard deviation of about 6.9. Use the criterion tha

mote1985 [20]

Answer:

The correct answer is option 'a' : 120 is more than 2.5 standard deviations above the expected value.

Step-by-step explanation:

For an exponential distribution we have

The expected value μ = 80

No of trails n = 200

Thus we have

$p=\frac{80}{200}=0.4$

The deviation is related to expected value and probability as

$\sigma =\sqrt{np(1-p)}\\\\\therefore \sigma =\sqrt{200\cdot 0.4\cdot (1-0.4)}=6.9$

Thus the values between the given deviation is

$x_{1}=80-2.5\times 6.9=62.75\\\\x_{2}=80+6.9\times 2.5=97.25$

Now since 120 successes are out of the range of [62.75,97.25] thus 120 is more than the expected value.

5 0

2 years ago

10 (w-4)=4 (w+4)+4w

eimsori [14]

Answer:

$w = 28$

Step-by-step explanation:

$10(w-4) = 4(w+4)+4w$

1. distribute

$10w - 40 = 4w +16 +4w$

2. collect like terms

$10w -4w - 4w = 40 +16$

3. solve

$2w = 56$

$w = 28$

8 0

2 years ago