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sergeinik [125]

3 years ago

15

13 (I'll gibe brainliest to whoever answers correctly) 14 - 1 7 + 1 2 =

2 answers:

guajiro [1.7K]3 years ago

8 0

Answer:

9

Step-by-step explanation:

Ray Of Light [21]3 years ago

5 0

14-(17+12)
14 -29

15 or -15

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Which number is the opposite of Point B on the number line?

KonstantinChe [14]

The answer is 6
Because the number line is skip counting by 2

7 0

3 years ago

C. 24 mm, 24 mm, 24 mm

Lemur [1.5K]

Equilateral triangle

Explanation:
All of the sides are equal

3 0

2 years ago

The graph of a function f(x) is shown below:

Tom [10]

Count the dots plotted here. There are four of them, right? What are the x-coordinates of those four dots: Answer: {-1, 0, 1, 2}.

Reject answers B and C because none of the four dots have x-coordinate -3.
Reject answer A because this set would not include x=-1 or x=2.

5 0

3 years ago

A rectangular pool is to be built on a lot that measures 20 m by 12 m. A wooden deck of uniform width, equal to the area of the

frutty [35]

The length and breadth(width) of the pool are

$l\approx15.7m\text{ and }b\approx7.7m$

Let

$l=\text{length of the side of the pool}\\b=\text{breadth of the pool side}\\w=\text{the width of the strip of deck surrounding the pool}$

From the question, we can build the following relationships

$l+2w=20\\b+2w=12$

subtracting to eliminate $w$ (we do not even need it!)

$l-b=8\\b=l-8$

we can also build another relationship from the question. Since the area of the strip equals the area of the pool:

$lb+lb=2lb=20\times 12\\lb=120$

We have two unknowns, $l$ and $b$ . Eliminate $b$

$lb=120\\l(l-8)=120\\l^2-8l-120=0$

If we solve the quadratic equation for $l$ , we get

$l=4+2\sqrt{34}\approx 15.7m$

and

$b=l-8\\b=(4+2\sqrt{34})-8\\b=2\sqrt{34}-4\approx7.7m$

The length and breadth(width) of the pool are

$l\approx15.7m\text{ and }b\approx7.7m$

Learn more about area here: brainly.com/question/1447350

7 0

2 years ago

g 3.23 Marbles in an urn. Imagine you have an urn containing 5 red, 3 blue, and 2 orange marbles in it. (a) What is the probabil

My name is Ann [436]

Answer:

$P(Blue) = 0.3$

Step-by-step explanation:

Given

Red = 5

Blue = 3

Orange = 2

Required

Probability that the first marble is Blue

First, the total number of marble has to be calculated;

$Total = Red\ Marble + Blue\ Marble + Orange\ Marble$

$Total = 5 + 3 + 2$

$Total = 10$

The probability of Blue being the first is calculated as thus;

$P(Blue) = \frac{n(Blue)}{Total}$

$P(Blue) = \frac{3}{10}$

$P(Blue) = 0.3$

<em>Hence, the required probability is 0.3</em>

5 0

4 years ago