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suter [353]
2 years ago
12

What is the equation of a line, in general form, that passes through point (1, -2) and has a slope of .

Mathematics
2 answers:
Oliga [24]2 years ago
5 0

Answer:

Answer is III line

x - 3y - 7 = 0

Step-by-step explanation:

Given that the line passes through (1,-2)

Hence when we substitute x=1 and y =-2 the equation should be satisfied

I equation

3x - y - 7 = 0\\3(1)-(-2) \neq 7\\x - 3y + 7 = 0\\1-3(-2)+7 = 14 \neq 0x - 3y - 7 = 0\\1-3(-2)-7 =0\\

Hence third equation is the correct answer.

hjlf2 years ago
4 0
The correct question is
<span>What is the equation of a line, in general form, that passes through point (1, -2) and has a slope of 1/3
</span>
we have that
point (1,-2)
slope m=1/3
so
y-y1=m*(x-x1)-----> y+2=(1/3)*(x-1)----> multiply by 3---> 3y+6=x-1
x-3y-1-6=0------> x-3y-7=0

the answer is
<span>x - 3y - 7 = 0</span>
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Find the equation of the line passing through the points (5,21) and (-5,-29)
Assoli18 [71]

Answer:

Look below

Step-by-step explanation:

lets have -29 be y2 and -5 be x2

21 - (-)29

5 - (-)5

Subtracting a negative is just adding it so

21 + 29   50
5 + 5       10

50/10

this simplified, is 5/1 or 5

y=5x+b

now we need to find b, so we substitute  y and y

x = 5

y = 21

21=5*5=b

5*5 is 25

now we need to get to 21


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b = -4

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3 0
2 years ago
If Isaac uses a coupon entitling him to a 25% discount off the purchase price before tax, how much will his bill be? Assume that
lions [1.4K]

Answer:

b) 25/100 x 79

= 19.75

= 79 - 19.75

= $59.25 (before tax)

7/100 x 59.25

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Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
How do we refer to self-contained state actions: monadic. dyadic. triadic. k-adic?
Assoli18 [71]
This state action is referred to as monadic. This is a function or a relation with an arity of one. A monad can relate an algebraic theory into a <span>composition of a function though its power is not always apparent.</span>
4 0
3 years ago
If sinX= 0.9, what is the value of cos X?<br><br> Round the value to the nearest thousandth.
SSSSS [86.1K]

Answer: sqrt(19)/10

Step-by-step explanation:

sinx=0.9

x=arcsin(0.9)


Insert x for cos(x):

cos(arcsin(0.9)=

Use identify cos(arcsin(x))=\sqrt{1-x^{2} }, so

\sqrt{1-(\frac{9}{10})^{2}} =\sqrt{\frac{19}{100} } =\frac{\sqrt{19}}{10}


Sorry if this is confusing.



6 0
3 years ago
Who ever solves this is a math wiz
WINSTONCH [101]
1. X=3, 2. X=4, 3. X= 95/2
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3 years ago
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