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Sphinxa [80]
3 years ago
13

HELP ASAP DUE IN 20 MINUTES

Mathematics
1 answer:
IrinaK [193]3 years ago
8 0

Answer:

x = 3

< D = 26

< E = 54

Step-by-step explanation:

I did the math

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-3√45+3√20<br>SHOW HOW YOU GOT YOUR ANSWER​
Juli2301 [7.4K]

-3√45 + 3√20 = -3√(9 · 5) + 3√(4 · 5) =

= -3√(3² · 5) + 3√(2² · 5) =

= -3 · 3√5 + 3 · 2√5 =

= -9√5 + 6√5 = -3√5 ← the end

4 0
3 years ago
What is 4% converted to decimal
kenny6666 [7]
0.04, just divide 4 by 100
6 0
3 years ago
Roy is twice as old as Joan, and in 3 years the sum of their ages will be 21 years. Find their present ages.
Lisa [10]

Answer:

Roy is 10 years old at present and Joan is 5 years old at present

Step-by-step explanation:

Let

x----> Roy's age

y----> Joan's age

we know that

x=2y ----> equation A

(x+3)+(y+3)=21 ----> equation B

substitute equation A in equation B

(2y+3)+(y+3)=21

solve for y

3y+6=21

3y=21-6

3y=15

y=5 years

Find the value of x

x=2y  ----> x=2(5)=10 years

therefore

Roy is 10 years old at present

Joan is 5 years old at present

8 0
3 years ago
In the congruent figures ABCD and WXYZ, which angles are corresponding?
nordsb [41]

Answer: B

The letters have the same positions in the figure names.

4 0
2 years ago
Your cell phone costs $50 a month plus $0.25 for each text message, (t). How much would your monthly bill be if you sent 40 text
aalyn [17]

Answer:

$60

Step-by-step explanation:

40 text messages × .25 each = $10. Plus the $50 per month is $60.

8 0
2 years ago
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