2 years ago

Please tell me is my answer right

Mathematics

2 answers:

garik1379 [7]2 years ago

6 0

Yes it’s the right answer

BARSIC [14]2 years ago

3 0

Yessssssssssssssssss

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a gas-filled balloon rises 40 feet in the 1st minute, 60 feet in the 2nd minute, and 80 feet in the 3rd minute, how many feet wi

vladimir2022 [97]

Let $g_n$ represent the number of feet that the balloon rises in the $n^{th}$ minute.

so

$g_1=40$ ft , means that in the 1st minute, the balloon rose 40 feet

$g_2=60$ ft, means : in the 2nd minute the balloon rose 60 feet

$g_3=80$

we notice that each minute, the balloon rises a multiple of 20, feet:

$g_1=40=2*20$

$g_2=60=3*20$

$g_3=80=4*20$

so it is clear that $g_n=(n+1)*20$

during the 15th minute the balloon rises $g_1_5=16*20=320$ (feet)

Answer: 320

6 0

3 years ago

Please help! Thank you

Gekata [30.6K]

Answer: 1. -90

Step-by-step explanation:

5xy², if x=-2 and y=-3

You substitute the value into the original expression

5xy²

=5(-2)(-3)² ⇔ substitution

=(-10)(9) ⇔ multiply 5 and -2, and simplify (-3)²

=-90