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ryzh [129]
3 years ago
13

What the distance between (2,1) and (-5,8)

Mathematics
2 answers:
viva [34]3 years ago
7 0
Exact form = 7 √2
Decimal form= 9.899
Brut [27]3 years ago
4 0

Answer:

\sqrt{98} or 9.89949

Step-by-step explanation:

use the distance formula

d=\sqrt{(x_{2}-x_{1} )^{2} +(y_{2}-y_{1})^{2}    }

d=\sqrt{(-5-2)^{2}+(8-1)^{2}  }

d=\sqrt{(-7)^{2} +(7)^{2} } \\\\\sqrt{49+49}

d=\sqrt{98} or 9.89949

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What are the side lengths of a 45-45-90 triangle with a hypotenuse of 10root2?
scoundrel [369]

Answer:

10

Step-by-step explanation:

let the lengths of sides=x (each)

x²+x²=(10√2)²

2x²=100×2

x²=100

x=√100=10

6 0
3 years ago
Suppose that nine is a factor of a number which statement has to be true
tensa zangetsu [6.8K]
Since 9 is a factor of an unknown number, that means that that number has to be a multiple of 9. If 9 is the factor of something then that something HAS to be a multiple of 9.
6 0
3 years ago
If m ACD=100 degree,then m ECB=[?]
balu736 [363]

Answer:

100

Step-by-step explanation:

They are the same.

Hope I helped!

7 0
3 years ago
Read 2 more answers
Sine, cosine, and tangent are used when looking for a missing side length in the right triangle. True or False
natali 33 [55]
I’m pretty sure it’s true
5 0
3 years ago
The cost c, to produce b baseball bats per day is modeled by the function c(b)=0.06b^2 - 7.2b + 390. What number of bats should
Finger [1]
You have two choices.
The minimum possible cost to operate your bat factory for a day is $390,
and there are two quantities of bats that both cost that much.

One possibility: 
                   Produce no bats at all per day.  Zero.  Nada.  None.
                   Cost = 0.06(0)²  -  7.2(0)  +  390  =  $390 per day.

The other choice:
                   Produce  120 bats per day.
                   Cost = 0.06(120²)  -  7.2(120)  +  390
                          = 0.06(14,400)  -  7.2(120)  +  390
                          =      864          -      864      +  390
                          =      $390  per day.

If you produce any other number of bats in a day ... more than zero
but not 120 ... then it will cost you more than $390 to operate the factory
that day.
8 0
3 years ago
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