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erastova [34]
3 years ago
5

Valentina has a tray where she keeps all of her important papers. The tray is in the shape of a rectangular prism with no top.

Mathematics
2 answers:
Alchen [17]3 years ago
6 0
The answer is 300 as 2.5x10x12=300
kramer3 years ago
3 0

Answer:

D.300

Step-by-step explanation:

did it on a test.

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A jewelry box containes 3 rings, 7 necklaces, 4 earrings, 5 braceletes and 1 tiara. If 1 piece of jewlery is selected at radom,
Brums [2.3K]

Answer:

C and D

Step-by-step explanation:

Hope this helps!

6 0
3 years ago
Read 2 more answers
Please include work
OLga [1]

Answer:

9.     6k + 5 and 2k - 1.

10.    5√2 .

Step-by-step explanation:

9.    Area = 12k^2 + 4k - 5

Factoring:

12k^2 - 6k + 10k - 5

= 6k(2k - 1) + 5(2k - 1)

= (6k + 5)(2k - 1)

So the required lengths are 6k + 5 and 2k - 1.

10.  The ratio of a leg to the hypotenuse is  1: √2 so if the hypotenus = 10 the length of a leg is 10 / √2  

= 10 √2  / 2

= 5√2 .

7 0
3 years ago
Help plz help plz fast​
Alex

Answer:

fast doesn't need help you do

Step-by-step explanation:

5 0
3 years ago
Please help me ASAP, thanks!
jenyasd209 [6]
The answer is option c
I hope this helps!
6 0
3 years ago
Two angles of a quadrilateral measure 130 and 10. The other two angles are in a ratio 2.9. What are the measures of those two a
andrey2020 [161]

Answer:

check: 50+160+130+20 = 360

50:160 = 5 : 16

Step-by-step explanation:et the smaller of the unknown angles be 5x and the larger of the two be 16x

so 130+20+5x+16x = 360

21x = 210

x = 10

so the two missing angles are 50° and 160°

check: 50+160+130+20 = 360

50:160 = 5 : 16

8 0
2 years ago
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