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4 years ago

A number, x, rounded to 2 decimal places is 15.38Write down the error interval for x.

Mathematics

1 answer:

Stels [109]4 years ago

5 0

Answer:

The error interval for x is:

$[15.375,15.384]$

Step-by-step explanation:

In order to determine the error interval for x, We have to get the all the number which could be rounded off to $15.38$ .

These number can be listed in order such as:

15.375 15.376 15.377 15.378 15.379 15.380 15.381 15.382 15.383 15.384

Therefore, the error interval for x is:

$[15.375,15.384]$

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dem82 [27]

It's the slope of the secant line to f(x) through the points (-3, f (-3)) and (9, f (9)),

$\dfrac{f(9) - f(-3)}{9 - (-3)} = \dfrac{-7 - 1}{12} = -\dfrac8{12} = \boxed{-\dfrac23}$

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3 years ago

Which of the following expressions represents the statement below?

Viktor [21]

The answer is B. 7 times a number plus 4 would be 7n +4.

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3 years ago

Y=x-7 6x-6y=-7 elimination method

Archy [21]

Answer:

The system has no solutions.

Step-by-step explanation:

Let's write it in a more traditional form

$\left \{ {{x-y=7} \atop {6x-6y=-7}} \right. \\$

Try staring at it for a bit, and then realize what you are being asked: find two numbers whose difference is - at the same time, 7, and -7/6. That's impossible.

Same result you get by elimination. Multiply the first by 6 and either add or subtract - your choice the second. In either case you will get 0 = 35 or 0=49, which are obviously absurd

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3 years ago

The dimensions of a standard tennis court are 36 ft. × 78 ft. with a net that is 3 ft. high in the center. The court is modified

Tema [17]

Answer:

Modified court is not similar to the standard court

Step-by-step explanation:

Given that :

Dimension of standard tennis court:

36ft by 78ft

Net height = 3 ft

Dimension of Modified Court :

27ft by 60ft

Net height = 3ft

To examine similarity :

We obtain the dilation factor for width and length :

(Standard court length / modified court length)

= 36 ft / 27 ft

= 4 / 3

Width :

Standard court width / modified court width)

= 78 ft / 60 ft

= 13 / 10

Since the dilation factor for the width and length are different, then we can conclude that the standard and modified court are not similar

7 0

3 years ago

1. In school lottery to win a price for "Free Domino's Pizza" it is required to select 5 numbers (in any order) out of 40 number

barxatty [35]

Answer:

1/8 ;

12 / 51

Step-by-step explanation:

To select any 5 numbers out of 40

Number of selection required / total numbers

Probability of winning = 5 /40 = 1/8

Total number of socks = 18

White, W = 8

Black, B = 6

Blue, C = 4

probability, without looking in the drawer, that you will first select and remove a black pair, then select either a blue or a white pair?

P(B) * [(P(C) + P(W)]

Probability = required outcome / Total possible outcomes

P(B) = 6 / 18 = 1/3

Without replacement :

P(W or C) = 8/17 + 4/17 = 12/17

Hence,

1/3 * 12/17

= 12 / 51

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3 years ago

A number, x, rounded to 2 decimal places is 15.38Write down the error interval for x.​

A number, x, rounded to 2 decimal places is 15.38Write down the error interval for x.