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3 years ago

Someone help fasttttt

Mathematics

2 answers:

Dvinal [7]3 years ago

4 0

Maybe 44 because 180-136=44

bulgar [2K]3 years ago

4 0

Answer:

D. 44 degrees

Step-by-step explanation:

angle 3: 180-136 = 44 degrees

Because angle 7 is congruent to angle 3, angle 7 is also 44 degrees

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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

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

8 0

3 years ago

Which expressions have a sum of -12 right answer only!!

kenny6666 [7]

Answer:

B and D

Step-by-step explanation:

2+-14 = -12

-4+(- 8) = -12

because its a negative number it wont go up it will go down

7 0

2 years ago

Read 2 more answers

Amy launched a ball into the air. The height of the ball can be represented by the equation h = -16t^2 + 96t + 112, where h is t

Sidana [21]

Answer:

Vertex is (3, 256)

Step-by-step explanation:

The vertex means that at 3 seconds, the highest point the ball will reach is 256 units in the air.

3 0

2 years ago

A rectangle is drawn with the dimensions shown. The area is listed inside each rectangle.

lutik1710 [3]

Answer:

the awnser is 45

Step-by-step explanation:

i just took this test on masery connect

5 0

3 years ago

3.868×10 9 =? <br> What is this answer?

viktelen [127]

The answer is 421.612

4 0

3 years ago