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3 years ago

In the ordered pair (3, 4), which number represents the x-coordinate

Mathematics

1 answer:

zavuch27 [327]3 years ago

3 0

Answer:

Step-by-step explanation:

Coordinate pairs are represented like this (x, y). So since 3 is in the first spot, it is the x coordinate.

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Please answer fast!

pentagon [3]

Answer:

4 and 2

Step-by-step explanation:

a positive times a negative makes a negative

5 0

3 years ago

4. After measuring the mass of water, the data is averaged and it is determined that the mean of 4 measurements is 122.4 g with

pogonyaev

The mass of the object would be the mean which is 122.4, which must be rounded to three significant figures, i.e 122 g.

<h3>What is the unitary method?</h3>

The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.

After measuring the mass of water,

the data is averaged and it is determined that the mean of 4 measurements is 122.4 g with a standard deviation of 1.3 g.

If the deviation is 1.3 g then, the true measurement will be

122.4g - 1.3g to 122.4g + 1.3g:

Lower limit: 122.4 g - 1.3 g

= 121.1 g

Upper limit: 122.4 g + 1.3 g

= 123.7 g

only the first two digits, hundreds and tens places, are certain.

The one digit is uncertain.

It should report the number with three significant figures:

2 certain digits + 1 uncertain digit.

The mass of the object would be the mean which is 122.4,

which must be rounded to three significant figures, i.e 122 g.

Learn more about the unitary method;

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#SPJ1

3 0

2 years ago

It is given that -7, h, k, 20,... are the first 4 terms of an arithmetic progression.

dexar [7]

Answer:

the answer should be B

Step-by-step explanation:

the first part is basically finding the difference between the terms, as we know that d=T2-T1

so by comparing the T2-T1 and T3-T2 we can find the difference with the two variables h and k

afterwards do the same with T4-T3 and T3-T2, comparing them and you will get another equation

now that you have two equations, you can do simultaneous equation to get the answers

hope i helped :D

6 0

3 years ago

The value of the x-intercept for the graph of 4x-5y=40 is

Alik [6]

$\hbox{x-intercept - y=0}: \\
4x-5 \times 0=40 \\
4x=40 \\
x=\frac{40}{4} \\
\boxed{x=10}$

8 0

3 years ago

Question

RideAnS [48]

Answer:

Step-by-step explanation:

There are 9 letters, which contains 2Qs, 3Ls and 4Bs.

If the 9 letters are distinct, the number of permutations they have will be 9!.

! is the factorial sign.

9! = 9*8*7*6*5*4*3*2*1

HOWEVER, we have some identical elements, so we need to get rid of the permutations of the same letters.

Thus we have:

$\dfrac{9!}{2!*3!*4!} =\dfrac{9*8*7*6*5}{2*3*2*1} = \dfrac{9*4*7*5}{1} = 63*20=1260$

The answer is D

6 0

3 years ago