Answer:
178/7
Step-by-step explanation:
4x-7+3x+9=180
4x+3x-7+9=180
7x-7+9=180
7x+2=180
7x=180-2
7x=178
x=178/7
Answer:
Step-by-step explanation:
3pink,5red,4yellow. 12 total roses. Probability of selecting a pink rose would be 3/12 or 1/4. The complement of that would be 1-1/4=3/4. So theres a 3/4 chance that she WON'T randomly select a pink rose. Answer=3/4
Answer:
BD = 14
Step-by-step explanation:
Using Pythagoras' identity on Δ's ADC and ABC
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, thus
BC² + 12² = 15²
BC² + 144 = 225 ( subtract 144 from both sides )
BC² = 81 ( take the square root of both sides )
BC =
= 9
and
DC² + 12² = 13²
DC² + 144 = 169 ( subtract 144 from both sides )
DC² = 25 ( take the square root of both sides )
DC =
= 5
Hence
BD = BC + DC = 9 + 5 = 14
I think it’s 84 you multiply 14 and 12 then divide by 2 since it is a triangular prism
B because the graph just shifted down 3