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3 years ago

Which of the following are trinomials?

Mathematics

2 answers:

Tema [17]3 years ago

8 0

Answer:

A. & E. is the answer for Apex

because they have 3 terms, the others are 1 or 2 term(s)..

Sati [7]3 years ago

3 0

Answer:

Options A and E.

Step-by-step explanation:

Trinomial function is a function which has three terms for example

ax² + bx + c = 0

In the given options we find

Option A. $\frac{5}{7}y^{3}+5y^{2}+y$

It has three terms so given expression is a trinomial.

Option E. $x^{4}+x^{2}+1$

This expression has three terms so it's a trinomial.

Rest all options are not the examples of trinomial.

Options A and E are the correct options.

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The average speed of greyhound dogs is about 18.4 meters per second. A particular greyhound breeder claims that her dogs are fas

irinina [24]

Answer:

The calculated value Z = 1.183 < 1.96 at 0.05 level of significance

Null hypothesis is accepted

A particular greyhound breeder claims that her dogs are faster than the average greyhound

Step-by-step explanation:

Step(i):-

Given the average speed of greyhound dogs is about 18.4 meters per second.

Size of the sample 'n' = 35

mean of the sample x⁻ = 18.7

Population standard deviation = 1.5m/s

level of significance (∝) = 0.05

Step(ii):-

Null hypothesis : H₀ : μ = 18.4

Alternative hypothesis H₁ : μ ≠ 18.4

Test statistic

$Z = \frac{x^{-} - mean}{\frac{S.D}{\sqrt{n} } }$

$Z = \frac{18.7-18.4}{\frac{1.5}{\sqrt{35} } }$

Z = 1.183

Conclusion:-

The calculated value Z = 1.183 < 1.96 at 0.05 level of significance

Null hypothesis is accepted

A particular greyhound breeder claims that her dogs are faster than the average greyhound

8 0

3 years ago

What is 5/47 as a decimal rounded to 3 decimal places?

MAXImum [283]

Answer:

You divide 5 by 47 and then see if the fourth digit after the decimal is 5 or greater or less than 5. If it's less, the digit before it remains the same and the decimal cuts off at it. If it's 5 or greater, the digit before it goes up one and the. decimal cuts off at it. Using this, you should get 0.106, I think.

5 0

3 years ago

Rebecca needs 10 1/2 yards of fabric to make a quilt. She has one piece of fabric that is 2 1/2 yards and another piece of fabri

klasskru [66]

Answer:

ans = 4

Step-by-step explanation:

he has 2 1\2 and 4 1\4

to find the ans, we must firstly find out his total amount of fabric, so we add the available fabric

first we add whole numbers

2 + 4 = 6

then we add fractions

1 1

--- + ---

2 4

2 + 1 3

------------- = ---

4 4

after we add the whole no and fraction

6 + 3\4 = 6 3\4

note 10 1\2 is greater than 6 3\4

so to find the part left, we

have

10 1\2 - 6 3\4

as our answer

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3 years ago

A can of juice has a radius of 4 inches and height of 7 inches . what is the volume of can ?

finlep [7]

Habana baja zkGuabjavavav

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3 years ago

In this exercise, we estimate the rate at which the total personal income is rising in a metropolitan area. In 1999, the populat

DiKsa [7]

Answer:

the rate at which total personal income was rising in the area in 1999 is $1,580,507,200 billion

Step-by-step explanation:

From the given information:

Let consider y to represent the number of years after 1999

Then the population in time (y) can be expressed as:

P(y) = 9400y + 924900

The average annual income can be written as:

A(y) = 1400y + 30388

The total personal income = P(y) × A(y)

The rate at which the total personal income is rising is T'(y) :

T'(y) = P'(y) × A(y) + P(y) × A'(y)

T'(y) = (9400y + 924900)' (1400y + 30388) + (9400y + 924900) (1400y + 30388)'

T'(y) = 9400(1400y + 30388) + (9400y + 924900) 1400

Since in 1999 y =0

Then:

T'(0) = 9400(1400(0) + 30388) + (9400(0) + 924900) 1400

T'(0) = 9400(30388) + (924900)1400

T'(0) = $1,580,507,200 billion

Therefore; the rate at which total personal income was rising in the area in 1999 is $1,580,507,200 billion

8 0

3 years ago