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Lesechka [4]
3 years ago
14

19 - a = 42 What is a?

Mathematics
2 answers:
PtichkaEL [24]3 years ago
6 0
A=61 since if you do the opposite equation 42+19=61
n200080 [17]3 years ago
4 0

Answer:

61

Step-by-step explanation:

add 42 the 19 because of reverse operation

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HURRY WILL MARK BRAINLIEST IMAGE ATTACHED. ​
Mashcka [7]

Answer:

b

Step-by-step explanation:

8 0
3 years ago
Find the length of each side of the polygon for the given perimeter. p=54 mi
mote1985 [20]
This all depends upon the number of sides your polygon has.  I am assuming it is regular and that all the sides have the same length. If this is true, then the polygon will only be able to have the number of sides that is a factor of 54.  If this is a 27-gon, then each side will measure 2 mi; if this is an 18-gon, then each side will measure 3 mi; is this is a triangle, then each side will measure 18 mi; if this is a hexagon, then each side will measure 9 mi; if this is a 9-gon, then each side will measure 6 mi.  It all depends upon the number of sides you have.  Your answer will be found in the info above, again, assuming this is a regular polygon.
8 0
4 years ago
Write the equation of a line through (-1,-5) parallel to 3x-y=5, and in slope intercept form
MAXImum [283]

Answer:

y =3 x

Step-by-step explanation:

The standard equation of a line in point slope form is expressed as;

y -y0 = m(x-x0)

m is the slope

(x0, y0) is the point on the line

Given the line 3x - y = 5

Get the slope

- y = -3x + 5

y = 3x - 5

Slope m  = 3

Substitute m = 3 and (-1, -5) into the given formula

y - (-5) = 3(x-(-1))

y+5 = 3(x+1)

y + 3 = 3x+3

y = 3x + 3 - 3

y = 3x

Hence the equation in slope intercept form is y =3 x

4 0
3 years ago
In the figure, PQ is parallel to RS. The length of RP is 5 cm, the length of PT
Nikitich [7]

Answer:

A) 10

Step-by-step explanation:

Apex :)

7 0
3 years ago
If, for a random sample of 16 days, the sample mean ends up being exactly one standard deviation of x above the population mean,
Rudik [331]

Answer:

The answer to the question is

μx + (σx/4)

Step-by-step explanation:

The sample mean that is one standard deviations above the population mean  is given by

value = μx + (Number of standard deviations)

(σx/√n)

value = μx + 1 (σx/√16)=

=  μx + (σx/4) =

Where

μx = Population mean

σx = Population standard deviation

n = Sample size

The standard error of the mean is

σ/√n =σ/√16 = σ/4

The standard of error is an indication of the expected error in the mean of a sample from the mean of the population.

The above statements is based on the central limit theorem, which states that, in particular instances the normalized sum of independent random variables becomes closer and closer to those of  normal distribution regardless of the variation in the sample of the variables

8 0
3 years ago
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