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anyanavicka [17]
3 years ago
8

Hey i need help with these and i’ll mark you brainliest

Mathematics
1 answer:
Gnoma [55]3 years ago
7 0

Answer:

I believe for 21 PQR is 60 and therefore PQS would be 38

Step-by-step explanation:

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Help with this one because I do not know how to do perpendicular plz put explanation with steps worth 50!
Yuri [45]

Answer:

Therefore, equation of the line that passes through (16,-7) and is perpendicular to the line 2x-3y=12 is 3x+2y=34  

Step-by-step explanation:

Given:  

2x-3y=12  

To Find:  

Equation of line passing through ( 16, -7) and is perpendicular to the line  

2x-3y=12  

Solution:  

2x-3y=12 ...........Given  

\therefore y=\dfrac{2}{3}\times x-4

Comparing with,  

y=mx+c  

Where m =slope  

We get  

Slope = m1 = \dfrac{2}{3}  

We know that for Perpendicular lines have product slopes = -1.

m1\times m2=-1

Substituting m1 we get m2 as

\dfrac{2}{3}\times m2=-1\\\\m2=-\dfrac{3}{2}

Therefore the slope of the required line passing through (16 , -7) will have the slope,

m2=-\dfrac{3}{2}  

Now the equation of line in slope point form given by  

(y-y_{1})=m(x-x_{1})  

Substituting the point (16 , -7) and slope m2 we will get the required equation of the line,  

(y-(-7))=-\dfrac{3}{2}\times (x-16)\\\\2y+14=-3x+48\\3x+2y=34......Equation\ of\ line  

Therefore, equation of the line that passes through (16,-7) and is perpendicular to the line  2x-3y=12 is

3x+2y=34  

3 0
3 years ago
What percent of the dogs and cats sold were dogs? a 70% b 22% c 55% d 45%
denis23 [38]
This gives no information, how many of each were sold
8 0
2 years ago
Read 2 more answers
Finding area of circle with radius , giving brainliest :)) pls help asap
Schach [20]

Answer:

number 2 is the answer or 4*pi inches² or 12.6

Step-by-step explanation:

6 0
3 years ago
What does quadratic functions mean
Ivahew [28]
Quadratic functions are second-order equations of the form y=ax^2+bx+c.  Their graphs form parabolas. The defining characteristic of a quadratic is that the acceleration of the outputs is a constant.
4 0
3 years ago
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167÷2=83.5 how to solve
gavmur [86]

Step-by-step explanation:

162/2 (the same as 162÷2) =83.5

83.5+83.5=162

^

that was two times to add so we know for sure that 162/2=83.5. Theres no special way to solve it since its just dived by <em>two</em>. Its just 162÷2=83.5

Hope this helps.

3 0
3 years ago
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