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Shkiper50 [21]
4 years ago
7

Find the distance between (-2, 1), (-5,5)

Mathematics
1 answer:
9966 [12]4 years ago
6 0

Answer:

(-2, 1). (5,5) is 11.55

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Which of the following is equal to the rational expression below when x=11?
topjm [15]
Our first expression is equal to zero:
\frac{x^2-121}{x+11}= \frac{11^2-121}{11+11} = \frac{121-121}{22}=0
So we simply find the expression that is equal to zero. 
The final answer is a.
x-11=11-11=0
4 0
4 years ago
Use the substitution method to solve the system of equations: <br><br> 2x – 5y = –14<br> x – 2y = –5
Nutka1998 [239]
Solve for 1 variable
solve for x in second

add 2y to both sides
x=2y-5
sub 2y-5 for x in first equation
2(2y-5)-5y=-14
4y-10-5y=-14
-10-y=-14
add 10 to both sides
-y=-4
times -1
y=4

sub
x=2y-5
x=2(4)-5
x=8-5
x=3

x=3
y=4
(3,4)
8 0
3 years ago
Read 2 more answers
- b = 14.89, C = 77°, c = 17.11
Leto [7]
∠A=36°  ∠B=67°  measures of a=8

in a Δ sum of all angles are 180
∠A+∠B+∠C=180
36+67+∠C=180
∠C=77

Now use law of sines 
a/sinA=b/sinB=c/sinC
8/sin36=b/sin67
now u can find B and C
8 0
3 years ago
How to subtract 582,295 from 670 063?
Harman [31]

Answer: 87,768

670063

-

582295

________

87768

4 0
3 years ago
Dave drives to work each morning at about the same time. his commute time is normally distributed with a mean of 45 minutes and
Paladinen [302]
The normal distribution curve is shown in the diagram below

<span>The percentage of time that his commute time exceeds 61 minutes is equal to the area under the standard normal curve that lies to the RIGHT of X=61

Standardising X=61 to find z-score
</span>z= \frac{61-45}{5} =3.2
<span>
from the z-table
</span>P(Z\ \textgreater \ 3.2) = 1 - P(Z\ \textless \ 3.2) = 1 - 0.9993 = 0.0007 = 0.07%<span>
</span>

8 0
3 years ago
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