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Aleonysh [2.5K]
3 years ago
6

HELPPPPP PLEASEEEEE

Mathematics
1 answer:
defon3 years ago
5 0

G = age of George

S = age of sister

G = S + 6, i.e. G - S = 6

G + S = 68

Solve the system of equations:

G - S = 6

G + S = 68

Add the two equations and get

2G = 74

G = 37

Then S = G - 6 = 37 - 6 = 31

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13 ≤ 4n n = 3 <br><br> True or false ? ( show work )
yaroslaw [1]

Answer:

False

Step-by-step explanation:

13 ≤ 4n if n = 3

13 ≤ 12

Is this true?

First of all this symbol (≤) means

  1. Less than
  2. Equal to

Is 13 less than 12?

No

Is 13 equal to 12?

No

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

5 0
2 years ago
(5x + 7)(5x – 7)<br> Foil method
Pavlova-9 [17]

Answer:

25x-49

Step-by-step explanation:

5x×5x=25x 5x×-7= -35x

7×5x=35x 7×-7=-49

(combine like terms)25x+-35x+35x= 25

hope that helped you!

6 0
3 years ago
Someone help please!!!!
LUCKY_DIMON [66]

Answer:

x = -2

TU = 4

UB = 2

Step-by-step explanation:

you can add x^2 with 4x+10 and equate it to 6:

x^2 + 4x + 10 = 6

x^2 + 4x + 4

then u can use the roots formula : x = (-b ± √ (b2 - 4ac) )/2a

so it'll be   x = {-4±[√16 - 4(4)]}/2

x= -2

then u can substitute it and find TU and UB

TU= (-2)^2 = 4

UB= 4(-2)+10 = 2

5 0
2 years ago
Please someone help me I don’t understand
Thepotemich [5.8K]

Answer:

Step-by-step explanation:

Remark

The solution to this is to add the two vertically opposite arcs and take 1/2 of the result to get the intersecting angle of the chords.

Solution

<x = 1/2 (arc measure of 116 + 74)

<x = 1/2 (190)

<x = 95

8 0
2 years ago
1. {(1, -2), (-2, 0), (-1, 2), (1, 3)}<br> Function:<br> Domain:<br> Range:
Anit [1.1K]

Answer: not a function; domain-2,-1,1 ; range-2,0,2,3

Step-by-step explanation:

3 0
3 years ago
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