Answer:
x = 3
Step-by-step explanation:
7x - 9 + 3x = 2x + 18 - x
10x - 9 = x + 18
10x - x = 18 + 9
9x = 27
x = 3
Step-by-step explanation:
x° + (x - 34)° = 180°. (C-angles)
Thereforr 2x - 34 = 180 and x = 107.
x° = 107°.
(x - 34)° = 73°.
Answer: 251 stickers
Step-by-step explanation:
She had 27 stickers before she started her sticker buying spree 14 days ago (2 weeks)
She bought 3 stickers on the 1st day of those 14
Then she started increasing in by 2 each day
Total for those 14 days = 3+5+7+9+11+13+15+17+19+21+23+25+27+29
Adding the 27 she already had
3+5+7+9+11+13+15+17+19+21+23+25+27+29+27 = 251 stickers
9514 1404 393
Answer:
- surface area: 456 cm²
- volume: 408 cm³
Step-by-step explanation:
The surface area of the figure is the total of the areas of the two triangular bases and the three rectangular faces.
SA = 2(1/2)(8 cm)(6 cm) + (17 cm)(6 cm + 8 cm + 10 cm)
= 48 cm² + 408 cm²
SA = 456 cm²
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The volume is the product of the area of the triangular base and the length of the prism.
V = (1/2)(8 cm)(6 cm)×(17 cm) = (24 cm²)(17 cm)
V = 408 cm³
Hope it helpssssss best of luckkkkk
