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andreev551 [17]

3 years ago

13

If the function f(y) models the number of inches a tree grows in a (y) year, which describes an appropriate domain for the funct

ion?
A) all integers where n > 0
B) all integers where n ≥ 0
C) all rational numbers where n > 0
D) all rational numbers where n ≥ 0

1 answer:

Gala2k [10]3 years ago

3 0

All rational numbers where n ≥ 0

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Vega wants to prove that the segment joining midpoints of two sides of a triangle is half the length of the third side. Select t

konstantin123 [22]

Answer:

The Answer is D : In triangle EFG△ , if EH=HF and EI=IG , then HI= 1/2 FG

FGH, I, equals, start fraction, 1, divided by, 2, end fraction, F, G.

Step-by-step explanation:

I Saw on Khan Academy

7 0

3 years ago

Identify the set of numbers that best describes each situation. explain your choice. the height of an airplane as it descends to

meriva

The height of an airplane as it descends to an airport runway is a quantity which has a unit that is usually rounded to a certain terminating degree of accuracy (i.e. 1, 2, ..., n decimal places)

Thus the set of rational<span> numbers best describes the height of an airplane as it descends to an airport runway.

A rational number is a number which can be represented in the form a/b where a and b are integers. It is usually identified by a terminating or a recurring decimal number.
</span>

8 0

3 years ago

If three times a number added to 8 is divided by the number plus 7, the result is four thirds. Find the number.

Marina86 [1]

9514 1404 393

Answer:

4/5

Step-by-step explanation:

The wording is ambiguous, as it often is when math expressions are described in English. We assume you intend ...

$\dfrac{3n+8}{n+7}=\dfrac{4}{3}\\\\3(3n+8)=4(n+7)\qquad\text{multiply by $3(n+7)$}\\\\9n+24=4n+28\qquad\text{eliminate parentheses}\\\\5n=4\qquad\text{subtract $4n+24$}\\\\\boxed{n=\dfrac{4}{5}}\qquad\text{divide by 5}$

The number is 4/5.

5 0

3 years ago

The product of -8 and x is -96.

velikii [3]

-96 divided by -8 = 12
Negative and negative make a positive, therefore the x has to be a positive for the answer to be a negative (-96)
Since you're looking for the product, you divide the two numbers you have.

3 0

3 years ago

Match the verbal expression (term) with its algebraic expression (definition).

NARA [144]

Four less than an unknown value is (B)

Quotient of a variable by four is (E)

Some number to the power of four is (D)
I AM SUMMING

Four times and unknown value is (C)

Four more than an unknown value is (A)

4 0

3 years ago