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3 years ago

What is the meaning of a negative rational number?

1 answer:

6 0

A rational number, by definition, is a number formed as the ratio of two integers. For example: 3/4 is a rational number. So is 1/51.

A negative rational number is precisely the same, except that we preface it with the negative sign. For example: -3/4, -1/51

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In the sequence – 40, –33, –26, –19, … determine the 77th term and the sum of the first 90 terms.

Gala2k [10]

The 77th term is 532 because the nth term is 7n-7

7x77=539

539-7=532

5 0

3 years ago

A recipe for making 12 cupcakes

Igoryamba

Answer:

16 cups of flour

Step-by-step explanation:

6 0

2 years ago

Using a common denominator to write an equivalent fraction for each fraction what would 1/3, 1/5, common denominator be?

STatiana [176]

The common denominator would be 15

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3 years ago

What is he value of F(-3)

PolarNik [594]

The correct answer is: " 10 " .

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→ " f(-3) = 10 " .

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Explanation:

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Given:

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f(x) = 7 − x ; if: x ≤ -3 ;

f(x) = x + 4 ; if: x > -3 ;

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Find: " f(-3) " :

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Note: " f(x) = f(-3) " ; → " x = - 3 " ;

Since " x = - =3 " ; → x is NOT greater than "-3" ;

→ So; " f(x) does NOT equal " x + 4" ;

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Consider our other option given:

We have "x = -3 " .

We our given: If " x ≤ -3 " ; {that is; if "x" is less than or equal to "-3" };

→ then: " f(x) = 7 − x " .

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Since: " x = - 3 " ;

→ then " x ≤ -3 " ; and:

→ f(x) = 7 − x ;

THEN:

→ f(-3) = 7 − (-3) ; → Note: Plug in "-3" for the value(s) of "x" in the equation;

and solve:

→ = 7 + 3 ;

= 10 .

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→ f(-3) = 10 .

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The answer is: " 10 " .

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Hope this answer — and explanation — is helpful to you.

Best wishes in your academic pursuits!

_____________________________________

5 0

4 years ago

Linda owns 4 shares of a certain stock. Yesterday the total value of her shares went down by 32 dollars. What was the change in

Annette [7]

Answer:

The value of each share decreased by $8.

Step-by-step explanation:

Number of shares of a certain stock Linda owned = 4

Total value of shares went down by = $32

So find the change in value of each share.

Solution:

Let the total value of each share in dollars be = $x$

Value of 4 shares in dollars will be = $4x$

The total value of shares went down by $32

So, new value of 4 shares = $4x-32$

New value of each share = $\frac{New\ value\ of\ total\ shares}{4}$

⇒ $\frac{4x-32}{4}$

Splitting the denominators.

⇒ $\frac{4x{{4}-\frac{32}}{4}$

⇒ $x-8$

Original value of each share in dollars was = $x$

New value of each share in dollars = $x-8$

Thus, we can see that the value of each share decreased by $8.

6 0

3 years ago