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3 years ago

Ricardo weigh 2pounds

Mathematics

1 answer:

IrinaVladis [17]3 years ago

7 0

Answer:

I think that you are missing parts of your question as it is just a statement

Step-by-step explanation:

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(6.03) Which of the following best describes the expression 6(y + 3)?

ivanzaharov [21]

Answer:

what are the followings..........

6 0

2 years ago

Read 2 more answers

Does 23^-1 (mod 1000) exist? If yes solve it.

sweet [91]

Yes, 23 has an inverse mod 1000 because gcd(23, 1000) = 1 (i.e. they are coprime).

Let x be the inverse. Then x is such that

23x ≡ 1 (mod 1000)

Use the Euclidean algorithm to solve for x :

1000 = 43×23 + 11

23 = 2×11 + 1

→ 1 ≡ 23 - 2×11 (mod 1000)

→ 1 ≡ 23 - 2×(1000 - 43×23) (mod 1000)

→ 1 ≡ 23 - 2×1000 + 86×23 (mod 1000)

→ 1 ≡ 87×23 - 2×1000 ≡ 87×23 (mod 1000)

→ 23⁻¹ ≡ 87 (mod 1000)

3 0

2 years ago

Exercise 2.4.2: Proving statements about rational numbers with direct proofs. About Prove each of the following statements using

IgorLugansk [536]

Answer:

See Explanation

Step-by-step explanation:

(a) Proof: Product of two rational numbers

Using direct proofs.

Let the two rational numbers be A and B.

Such that:

$A = \frac{1}{2}$

$B = \frac{2}{3}$

The product:

$A * B = \frac{1}{2} * \frac{2}{3}$

$A * B = \frac{1}{1} * \frac{1}{3}$

$A * B = 1 * \frac{1}{3}$

$A * B = \frac{1}{3}$

Proved, because 1/3 is rational

(b) Proof: Quotient of a rational number and a non-zero rational number

Using direct proofs.

Let the two rational numbers be A and B.

Such that:

$A = \frac{1}{2}$

$B = \frac{2}{3}$

The quotient:

$A / B = \frac{1}{2} / \frac{2}{3}$

Express as product

$A / B = \frac{1}{2} / \frac{3}{2}$

$A / B = \frac{1*3}{2*2}$

$A / B = \frac{3}{4}$

Proved, because 3/4 is rational

(c) x + y is rational (missing from the question)

Using direct proofs.

Let x and y be

Such that:

$x = \frac{1}{2}$

$y = \frac{2}{3}$

The sum:

$x + y = \frac{1}{2} + \frac{2}{3}$

Take LCM

$x + y = \frac{3+4}{6}$

$x + y = \frac{7}{6}$

Proved, because 7/6 is rational

The above proof works for all values of A, B, x and y; as long as they are rational values

8 0

3 years ago

A recipe takes 90 minutes to make 25% of the time he spent preparing the ingredients how many minutes are spent preparing

gizmo_the_mogwai [7]

25% * 90 minutes is 22.5 22.5 minutes

5 0

3 years ago

Help please it due at 8

umka2103 [35]

I need help my self lol XD sorryyyyyyyyy88898

8 0

2 years ago