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Mekhanik [1.2K]
3 years ago
15

HELP ME PLEASE 25 points

Mathematics
2 answers:
Aleks04 [339]3 years ago
8 0
Hello,

1) 2<2&2/3=2.6666...<3 Answer C (2 and 3)

2)-4<-3.75<3  Answer B ( A and B)

3)abs(B)=3/8 Answer B

4)an absolue value is always positive or null answer FALSE

5)|5-9|=|-4|=4 answer C

6)-|5|+|-5|=-5+5=0 answer C

7)I have understand AC as distance between A and C =2

AC-EF=2-1=1 Answer C

8) CF=2-(-2)=4 Answer D

9) NE=5-1=4 answer C

10)
x-7=6
==>x=1
Answer A
ira [324]3 years ago
7 0
Pg1
1. f,g
2. a,b
3. 3/8
pg2
1 false
2 -4
3 -10
4 -5
pg 3
1 0
2 6
3 13
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Which point lies on a circle with a radius of 5 units and center at P(6,1)?
ryzh [129]

Answer:

Option B. R(2,4)

Step-by-step explanation:

we know that

If a ordered pair lie on the circle. then the ordered pair must satisfy the equation of the circle

step 1

Find the equation of the circle

we know that

The equation of the circle in center radius form is equal to

(x-h)^{2}+(y-k)^{2}=r^{2}

where

r is the radius of the circle

(h,k) is the center of the circle

substitute the values

(x-6)^{2}+(y-1)^{2}=5^{2}

(x-6)^{2}+(y-1)^{2}=25

step 2

Verify each case

case A) Q(1, 11)

substitute the value of x=1, y=11 in the equation of the circle and then compare the results

(1-6)^{2}+(11-1)^{2}=25

25+100=25 ------> is not true

therefore

the ordered pair Q not lie on the circle

case B) R(2,4)

substitute the value of x=2, y=4 in the equation of the circle and then compare the results

(2-6)^{2}+(4-1)^{2}=25

16+9=25 ------> is true

therefore

the ordered pair R lie on the circle

case C) S(4,-4)

substitute the value of x=4, y=-4 in the equation of the circle and then compare the results

(4-6)^{2}+(-4-1)^{2}=25

4+25=25 ------> is not true

therefore

the ordered pair S not lie on the circle

case D) T(9,-2)

substitute the value of x=4, y=-4 in the equation of the circle and then compare the results

(9-6)^{2}+(-2-1)^{2}=25

9+9=25 ------> is not true

therefore

the ordered pair T not lie on the circle

7 0
3 years ago
Please help i have an assignment due TODAY i need to get this done
wel

Answer:

r = 50 degrees.

Step-by-step explanation:

r = 50 degrees ( vertical angles are congruent).

3 0
2 years ago
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Step-by-step explanation:

Multiply it out, collect terms, and write as descending powers of w.

  (5+w)(w+4) = 5w +5·4 +w² +w·4

  = w² +9w +20

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