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3 years ago

Write the equation of a line that has zero slope and goes through the point (6,-4)

1 answer:

6 0

$\bf (\stackrel{x_1}{6}~,~\stackrel{y_1}{-4})~\hspace{10em} slope = m\implies 0 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-(-4)=0(x-6)\implies y+4=0\implies y=-4$

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Solve for x. 6(x+1)-2x-1=(x+15)+(x+16)?

Aleksandr [31]

Answer:

x=13

Step-by-step explanation:

6(x+1)-2x-1=(x+15)+(x+16)

6x+6-2x-1= x+ 15+x+16

4x+5= 2x+31

2x+5=31

2x=26

x=13

7 0

4 years ago

The diagram shows a sketch of a survey done by a civil engineering student .Find the value of x,giving your answer correct to 1

Hatshy [7]

You can do this by drawing one line through parallel to PQS to meet RQ at T

Now calculate length of RT:-

cos 70 = RT / 70 giving RT = 23.94m

sin 70 = ST/70 giving ST = 65.78 m

draw a line from S perpendicular to PQ to meet PQ at U.

PU = 110 - 65.78 = 44.22 m

tan 50 = SU / 44.22 giving SU = 52.70 m

TQ = SU = 52.70 m

So x = TQ + RT = 52.70 + 23.94 = 76.6 m to 1 dec place.

7 0

3 years ago

How many people attended the game?

lys-0071 [83]

I would say that 300 people attended.

8 0

3 years ago

If a system of equations has infinite solutions, what do you know about the graph?

Anton [14]

Answer:

Step-by-step explanation:

A: Perpendicular lines have 1 solution. A is not the answer.

B: If the lines intersect, there is one solution, not many.

C: The lines are the same or can be reduced to being the same. C is the answer.

D: The lines don't intersect means that the lines are parallel. There isn't a solution.

3 0

3 years ago

Could someone help me solve this problem?

Ann [662]

Answer:

$\boxed{x=58}$ & $\boxed{m \angle C = 60}$

Step-by-step explanation:

You need to find x first in order to find the measure of angle C. To solve for x, we will use the fact that interior angles of a triangle have angle measurements that add up to 180 degrees.

Using this knowledge, we can create an equation where angles A, B, and C add up to equal 180.