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VashaNatasha [74]
3 years ago
13

One more thanfour times a number is thirteen what is the number

Mathematics
1 answer:
brilliants [131]3 years ago
7 0

Answer:

3

Step-by-step explanation:

subtract 1 from 13 divide the number by 4

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In how many ways can three married couples attending a concert be seated in a row of six seats if
OleMash [197]
 i think it would be 30 ways 

3 0
3 years ago
Given f(x) = 3x2 − 48 and g(x) = x − 4, identify (f/g)(x).
Ratling [72]

The choose a. 3x+12

( \frac{f}{g} )(x) =  \frac{3 {x}^{2} - 48 }{x - 4}  =  \frac{3( {x}^{2} - 16) }{x - 4}  \\  \\  =  \frac{3(x - 4)(x  +  4)}{x -4}  \\  \\  = 3(x + 4) \\  = 3x + 12

I hope I helped you^_^

3 0
2 years ago
A value two standards deviation from the mean is more likely to occur than a value three standard deviations from the mean.
Alexxandr [17]

Answer:

A value two standards deviation from the mean is more likely to occur than a value three standard deviations from the mean.

Step-by-step explanation:

Standard deviation is a quantitative measure of the variability of traits of the subjects in a given population. These traits can range from age, height, weight e.t.c. This deviation is brought about by extreme or abnormal conditions, which is the reason why two deviations is more likely to occur than three deviations.

Moreover, going by the provisions of the empirical rule, If data comes from a population that is approximately symmetrical;

95% of the data will fall within two standard deviations.

99.7% will fall within three standard deviations

Find the attachment below.

Nevertheless, in a symmetrical distribution most of the data values fall around the mean. Two standard deviations is closer to the mean than 3 standard deviations hence more likely to occur.

5 0
3 years ago
Read 2 more answers
Prove that : sin^4(2x)=3/8-1/2cos4x+1/8cos8x<br> Someone plzz help!!!
Gekata [30.6K]
Sin^2 (2x) = (1 - cos(4x))/2
---> sin^4 (2x) = (1/4)(1 - cos4x)^2 = (1/4)(1 - 2cos4x + cos^2 (4x)) and replace cos^2(4x) by (1/2)(1+cos(8x)) --->answer
7 0
3 years ago
Help me out please T-T​
Anettt [7]

Answer:

The simplyfied version would be 19/4

Show of work:

(1/4)^-2 = 4^2

3 × 8^2/3 × 1 = 12

(9/16)^1/2 = 3/4

4^2 - 12 + 3/4

Convert elements to fractions:

-12 × 4 + 3

---------- ----

4 4

Since the denominators are equal combine the fractions:

-12 × 4 + 3

---------------

4

-12 × 4 + 3 = -45

= -45/4

=4^2 - 45/4

4^2 = 16

16 - 45/4

16 × 4 - 45. 16 × 4 - 45

--------- ----- ----------------

4 4. 4

-> 16 × 4 - 45 = 19

= 19/4

7 0
2 years ago
Read 2 more answers
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