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stellarik [79]
2 years ago
8

From the set {36, 16, 13}, use substitution to determine which value of x makes the equation true. 3x = 39

Mathematics
2 answers:
stealth61 [152]2 years ago
7 0

Answer:

Step-by-step explanation:

3x = 39.....so instead of just subbing in all ur answer choices....just solve for x

3x = 39...divide both sides by 3, cancelling out the 3 on the left side

x = 39/3

x = 13 <=====

goblinko [34]2 years ago
3 0
The answer is 13 because if you plug in all three of the numbers only 13x3=39
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Will mark brainlest<br> please help
TiliK225 [7]

Answer:

Sin Z = 8/17

Tan G = 15/8

Cos Z = 15/17

Sin M = 1

Step-by-step explanation:

Sin is equivalent to Opposite over Hypotenuse. For Z, the opposite would be 40. 85 is always the hypotenuse in this problem.

Sin Z = 40/85, simplified it is 8/17

Tan is opposite over adjacent. In this case, the opposite is 75. The adjacent is 40.

Tan G = 75/40, simplified it is 15/8

Cos is adjacent over hypotenuse. In this one, the adjacent is 75. The hypotenuse is 85.

Cos Z = 75/85, simplified it is 15/17.

In Reference to what I said above Sin, I will use the same thing.

Sin M = 1

85/85

8 0
2 years ago
Find a basis for the row space and column space of a matrix and the rank .
ANEK [815]
......................
7 0
2 years ago
Solve this using a number line.<br> 3 1/8 ÷ 1/8
sp2606 [1]
Hey there!!

25 is the answer

Hope this helps. c:
4 0
3 years ago
Find the point P on the line y=2x that is closest to the point (20,0) .what is the least distance between pans (20,0)?
Vsevolod [243]
The closest point on a line, to another point, will be a point that's on a normal of that line, or a line that is perpendicular to it, notice picture below

so, y = 2x, has a slope of 2, a perpendicular line to it, will have a slope of negative reciprocal that, or \bf 2\qquad negative\implies -2\qquad reciprocal\implies \cfrac{1}{-2}\implies -\cfrac{1}{2}

so, we know that line passes through the point 20,0, and has a slope of -1/2

if we plug that in the point-slope form, we get \bf y-0=-\cfrac{1}{2}(x-20)\implies y=-\cfrac{1}{2}x+10

now, the point that's on 2x and is also on that perpendicular line, is the closest to 20,0 from 2x, thus, is where both graphs intersect, as you can see in the graph

thus  \bf 2x=-\cfrac{1}{2}x+10  solve for "x'

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

not sure on the 2nd part, but sounds like, what's the distance from that point to 20,0, well, if that's the case, just use the distance equation

\bf \textit{distance between 2 points}\\ \quad \\&#10;\begin{array}{lllll}&#10;&x_1&y_1&x_2&y_2\\&#10;%  (a,b)&#10;&({{ \square }}\quad ,&{{ \square }})\quad &#10;%  (c,d)&#10;&({{ \square }}\quad ,&{{ \square }})&#10;\end{array}\qquad &#10;%  distance value&#10;d = \sqrt{({{ x_2}}-{{ x_1}})^2 + ({{ y_2}}-{{ y_1}})^2}


6 0
3 years ago
Of 50 students surveyed, 19 said they had soda for breakfast. write a portion in fraction, decimal, percent
Naya [18.7K]
Answers:
___________________________
In fraction:  \frac{19}{50} .
___________________________
In decimal:  0.38  .
_________________
In percent:  38 %  .
_________________
Explanation:
_________________
19/50 = (19*2)/(50*2) = 38/100 .

38/100 = 38 ÷ 100 = 0.38  .

38/100 = 38 % .
___________________________
7 0
3 years ago
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