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netineya [11]
3 years ago
13

What is the slope of the passing through the points (4,6) and (-1, -2)

Mathematics
1 answer:
Likurg_2 [28]3 years ago
5 0
The\ slope:m=\dfrac{y_2-y_1}{x_2-x_1}\\------------------\\\\(4;\ 6)\to x_1=4\ and\ y_1=6\\(-1;-2)\to x_2=-1\ and\ y_2=-2\\\\subtitute\\\\m=\dfrac{-2-6}{-1-4}=\dfrac{-8}{-5}=\boxed{\frac{8}{5}}
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Can someone explain to me how to round to the nearest 10 dollars?
Leni [432]
Pinpoint the ten's place.
look at the one's place. It is a digit ≥5, round up. If it is digit <5, round down.
all the digits to the right of the ten's place becomes 0.
for example, if you are given $216.23, the ten's place is a 1. Look at the number to the right of it, the one's place is a 6, bigger than 5, so you round up, the 1 becomes a 2. the result is $220.00
if you are given $214.23, the 1 stays a 1 because 4 is smaller than 5, the result is $210.00

3 0
2 years ago
A piece of wire measuring 20 feet is attached to a telephone pole as a guy wire. The distance along the ground from the bottom o
dem82 [27]

Answer: Height at which the wire is attached to the pole is 12 feet.

Explanation:

Since we have given that

Length of the wire = 20 feet

Let the height at which wire is attached to the pole be h

and distance along the ground from the bottom of the pole to the end of the wire be x+4

Now, it forms  a right angle triangle so, we can apply "Pythagorus theorem".

H^2=B^2+P^2\\\\20^2=x^2+(x+4)^2\\\\400=x^2+x^2+8x+16\\\\400=2x^2+8x+16\\\\400=2(x^2+4x+8)\\\\200=x^2+4x+8\\\\x^2+4x-192=0\\\\x^2+16x-12x-192=0\\\\x(x+16)-12(x+16)=0\\\\(x+16)(x-12)=0\\\\x=-16\ and\ 12

But height cant be negative so, height will be 12 feet.

Hence, height at which the wire is attached to the pole is 12 feet.


8 0
3 years ago
What is the logarithmic form of 9² = 81?
Scorpion4ik [409]

Answer:

9*9=81

(if it is wrong i am sorry!)

8 0
3 years ago
Jason bought 10 of the 30 raffle tickets for a drawing. What is the probability that Jason will win all 3 of the prizes if once
lyudmila [28]
10/30) x (9/29) x (8/28)  =  720 / 24,360

                                                             =  6 / 203  =  2.96 percent (rounded)   
6 0
3 years ago
Read 2 more answers
If you have a plant and it grows 21.3 centimeters in 1 day what would be the x and y
DochEvi [55]

Answer:

Step-by-step explanation:

Here we want to present growth as a function of time; the growth depends upon the number of days that go by.  So, growth(y) is the dependent variable and time (in days, x) is the independent variable.

7 0
3 years ago
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