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timofeeve [1]
3 years ago
11

Help please lol :)).

Mathematics
1 answer:
katen-ka-za [31]3 years ago
7 0

Answer:

$10.50

Step-by-step explanation:

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Complete the equation of the line through (-6, -5) and (-4, -4). Use exact numbers
77julia77 [94]


In general the equation through (a,b) and (c,d) is


(y-b)(c-a)=(x-a)(d-b)


Can you see that this is a line and that both (a,b) and (c,d) are on it?


Here we're given (a,b)=(-6,-5) and (c,d)=(-4,-4)


(y- -5)(-4 - -6) = (x - -6)(-4 - 5)


2(y+5)=x+6


2y + 10 = x + 6


x - 2y  = 4


y = \frac 1 2 x - 2


Either of the last two are fine answers.





3 0
3 years ago
What is an equation of the line that passes through the points <br>(6,5) and (3,5)?​
Nady [450]

Answer:

y = 5

Step-by-step explanation:

y  = mx + b

5 = 6m + b

5 = 3m + b

Take the first minus twice the second.

-5 = - b

b = 5

Substitute back to calculate m.

5 = 6m + 5

6m = 0

m = 0

6 0
3 years ago
Two opposite sides of the square are increased by 8 inches and the other two sides are decreased by 5 inches. the area of the ne
Iteru [2.4K]

Answer:

The length of a side of the square would be 8.

Step-by-step explanation:

7 0
3 years ago
An airplane must clear a 60-foot pole at the end of a runway 500 yards long determine the angle of elevation at which the airpla
Marat540 [252]

Answer:

2.3 degrees.      

Step-by-step explanation:

Please find the attachment.

We are told that an airplane must clear a 60-foot pole at the end of a runway 500 yards long.

Let us convert 500 yards to feet.

1 yard= 3 feet.

500 yards= 3*500 feet= 1500 feet.

We can see from our attachment pole and runway are in form of a right triangle. The pole is opposite to angle of elevation of plane and length of runway is adjacent.

Since tangent represents the relation between opposite and adjacent of right triangle, So we will use tangent to find angle of elevation that plane must ascend to clear the pole.  

tan(\theta)=\frac{60}{1500}    

\theta=\tan^{-1}(\frac{60}{1500} )

\theta=\tan^{-1}(0.04)

\theta=2.290610042639

Therefore, the airplane must ascend 2.3 degrees to clear the pole.

8 0
3 years ago
The perimeter of a triangle is 90 cm. The lengths of the sides of the triangle are in the ratios 3:5:7 Work out the length of th
qwelly [4]

Answer:

9cm 5:9

Step-by-step explanation:

7 0
3 years ago
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