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ad-work [718]
2 years ago
11

Which represents the recursive formula for the arithmetic sequence An = 7-3(n − 1)?a=A2 equals A1 - 3b=A2 equals A1+3c= A3 eaual

s A2×3d= A3 equals A2-7

Mathematics
1 answer:
Anettt [7]2 years ago
8 0
\begin{gathered} a_n=7-3(n-1) \\  \end{gathered}

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Clara is growing her hair out and wants it to be no longer than 15 cm but more than 11 cm. Her hair is 7 cm right now and grows
DedPeter [7]

Answer:

16, 32

Step-by-step explanation:

We need to solve for t in this compound inequality. Let's do that!

11 < 7 + 0.25t ≤ 15

4 < 0.25t ≤ 8

16 < t ≤ 32

Therefore, we know that it will take Clara more than 16 weeks and up to and including 32 weeks to grow out her hair.

5 0
3 years ago
Which ordered pair is a solution to the equation y=-2/5x+9
Vladimir79 [104]

Answer:

c

Step-by-step explanation:

i am not sure i but i think it is

6 0
3 years ago
I will mark you
Nana76 [90]

Answer:

Yes, because the x's do not have more than one y.

Step-by-step explanation:

x      y

0      0

5       10

6       12

10     20

(That's meant to be a table). Looking at the x and y table values, you can see that none of the x's have two y's. So, this relation is a function.

7 0
3 years ago
For each reaction between a ketone and an amine, draw the curved arrow(s) to show the first step of the mechanism, then draw the
Ray Of Light [21]

Answer:

Step-by-step explanation:

Aromatic amine is generally less nucleophilic than aliphatic amine because of the aromatic delocalisation of the lone pair. Ketones are also less reactive compared to aldehyde and Reaction between aromatic amine and aromatic ketone is possible leading to the formation of Schiff's base in aqeous ethanoic solution.

6 0
3 years ago
10 POINTS PLEASE HELP!
Cerrena [4.2K]

When the surrounding flaps are folded up, the base of the box will have dimensions 11-2x by 16-2x, and the box will have a height of x. So the box has volume, as a function of x,

V(x)=(11-2x)(16-2x)x=176x-54x^2+4x^3

I don't know what technology is available to you, but we can determine an exact value for x that maximizes the volume by using calculus.

Differentiating V with respect to x gives

\dfrac{\mathrm dV}{\mathrm dx}=176-108x+12x^2

and setting this equal to 0 gives two critical points at

x=\dfrac{27\pm\sqrt{201}}6\implies x\approx2.1\text{ or }x\approx6.9

For the larger critical point we would get a negative volume, so we ignore that one. Then the largest volume would be about 168.5 cubic in.

7 0
4 years ago
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