3 years ago

How can you determine if a number is a rational number?

1 answer:

8 0

A rational number is a number that can be written as a ratio. That means that it can be written as a fraction. The numerator and the denominator both need to be whole numbers for it to be rational. For example, 2 is a rational number because it can be written as the fraction 2/1.

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Strand A changes color every 14 seconds. Strand B changes color every 20. Both strands just changed color. After how many second

Vesna [10]

Answer:

140

Step-by-step explanation:

14, 28, 42, 56, 70, 84, 98, 112, 126, 140.

20, 40, 60, 80, 100, 120, 140.

14 x 10 = 140

20 x 7 = 140

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2 years ago

2. The pair of numbers used to locate points on a grid is<br> an

NeX [460]

how dI I exit out of thiss

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2 years ago

The figure below shows a triangle with vertices A and B on a circle and vertex C outside it. Side AC is tangent to the circle. S

JulsSmile [24]

Answer:

Step-by-step explanation:

First, one theorem states that (arc AB - arc AX) / 2 = angle ACB. We know that arc AB is 176, so we have

(176 - arc AX) /2 = ∠ACB

Next, the Inscribed Angle Theorem states that

arc AX/2 = ∠ABX

multiply both sides by 2

56 * 2 = arc AX = 112

Therefore, ∠ACB = (176-112)/2 = 64/2 = 32

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3 years ago

Jack bought 5 \text{ pounds}5 pounds5, start text, space, p, o, u, n, d, s, end text of Halloween candy. He gave out 3\text{ pou

dangina [55]

Answer:

1.375 pounds

Step-by-step explanation:

We want to find how many pounds of candy he has left.

He bought 5 pounds.

He gave out 3 pounds.

He ate 10 ounces. Converting 10 ounces to pounds:

1 ounce = 0.0625 pounds

10 ounces = 10 * 0.0625 = 0.625 pounds

Therefore the amount of candy he has left is:

5 - (3 + 0.625)

= 5 - (3.625)

= 1.375 pounds

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3 years ago

Given that a and b are legs of a right triangle and c is the hypotenuse. Solve for the missing length using the Pythagorean Theo

Levart [38]

Answer:

Step-by-step explanation:

a^2+b^2=c^2

7^2+9^2=C^2

49+81=c^2

$\sqrt{49+81}$ =c

$\sqrt{130}$ =c

3 0

3 years ago