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GREYUIT [131]
3 years ago
8

The following below shows values for x and y. If y varies directly with x, what is the constant of variation?

Mathematics
2 answers:
Bingel [31]3 years ago
4 0
Option C is correct.
blagie [28]3 years ago
4 0
X up ---- 2
y is up down ---- -6

now you divide. -6/2. = -3

you answer is C

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A ladder is leaning against the side of a building and positioned such that the base of the ladder is 17 ft from the base of the
andrezito [222]

Answer:

The ladder is 28.6 feet long.

Step-by-step explanation:

Given that:

Length of base = 17 feet

Length above the ground = 23 feet

These forms two legs of right angled triangle.

The length of ladder will be the hypotenuse.

Using Pythagorean theorem;

a^2+b^2=c^2\\(17)^2 + (23)^2 = c^2 \\289 + 529 = c^2 \\c^2 = 818

Taking square root on both sides

\sqrt{c^2}=\sqrt{818}\\c=28.6

Hence,

The ladder is 28.6 feet long.

5 0
3 years ago
Evaluate -5x^2 − 8x + 1 when x = -3.
Yakvenalex [24]

Hello.

Answer: 70

New equation: −5(−3^2)−(8)(−3)+1


How to get the answer:

(−5)(−9)−(8)(−3)+1

=45−(8)(−3)+1

=45−(−24)+1

=69+1

=70


Have  a nice day

7 0
3 years ago
An escalator lifts people to the second floor of a building, 28 ft
Marysya12 [62]

9514 1404 393

Answer:

  56 ft

Step-by-step explanation:

The geometry can be modeled by a right triangle with an unknown hypotenuse, and a side opposite the 30° angle that is 28 ft.

  sin(30°) = (28 ft)/hypotenuse

  hypotenuse = (28 ft)/sin(30°) = 56 ft

The length of the escalator is 56 feet.

4 0
3 years ago
10+20= answer and explanation please​
kap26 [50]

Answer:is 30

Step-by-step explanation:

So u can say 5+5=10, well if the answer is 10 then 10+10= 20 and then if u add 10 to 20 you will get 30

4 0
3 years ago
If p is the midpoint of xy, xp=8x-2 and py=12x-30, find the value of x
goldenfox [79]
Check the picture below.

surely, you'd know how much that is.

3 0
3 years ago
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