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Nastasia [14]
2 years ago
10

I need help on this question

Mathematics
1 answer:
cestrela7 [59]2 years ago
8 0

Answer:

Step-by-step explanation:

nth term = 3n+2

a) first term = 3+2 = 5

Second term = 3(2)+2 = 8

Third term = 3(3) +2 = 11

b) tenth term = 3(10)+2 = 32

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8×10^7×1.5×3^-1×10^-9​
quester [9]

Answer:

0.04

Step-by-step explanation:

3 0
3 years ago
Solve each inequality <br><br> x+1&gt;-5(7-2x)
Natalka [10]

x+1 > -5(7-2x)\ \ \ \ |\text{use distributive property}\\\\x+1 > (-5)(7)+(-5)(-2x)\\\\x+1 > -35+10x\ \ \ \ |-1\\\\x > -36+10x\ \ \ \ |-10x\\\\-9x > -36\ \ \ \ |\text{change the signs}\\\\9x < 36\ \ \ \ |:9\\\\\boxed{x < 9}\to x\in(-\infty,\ 9)

3 0
2 years ago
a motorboat travels 456 km in 8 hours going upstream and 783 km in 9 hours going downstream. what is the rate of the boat in sti
Galina-37 [17]
\begin{gathered} \text{Let;s assume the sp}e\text{d of boat in still water is x.} \\ And\text{ the spe}ed\text{ of stream is y.} \\ For\text{ upstream,} \\ (x-y)\times8=456 \\ x-y=57\ldots(1)_{} \\ (x+y)\times9=783 \\ x+y=87 \\ x=87-y\ldots(2) \\ \text{Now, substitute the value of x in the equation (1).} \\ 87-y-y=57 \\ -2y=57-87 \\ 2y=30 \\ y=15\text{ km/hours (rate of current)} \\ \text{Substitute the value of y in the equation (2).} \\ x=87-15 \\ x=72\text{ km/hours (boat in still water)} \end{gathered}

4 0
11 months ago
What is the answer to this question?
Vlada [557]

2A on 2A + 3B + 3C = 8 pieces

The probability:

\dfrac{2}{8}=\dfrac{2:2}{8:2}=\dfrac{1}{4}

\dfrac{1}{4}=\dfrac{1}{4}\cdot100\%=25\%

<h3>Answer: 25%</h3>
4 0
3 years ago
PLEASE HELP ASAP!!! :)<br><br>Look AT THE PICTURE PLS HURRY
crimeas [40]

Answer:

The answer would be A. 1 1/5

48/40 = 1 8/40

1 8/40 Simplify to 1 1/5

Hope this helps!

6 0
3 years ago
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