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k0ka [10]
3 years ago
5

Use benchmarks to estimate 6.34 + 3.95

Mathematics
2 answers:
larisa86 [58]3 years ago
8 0
6.34 rounds to 6.
3.95 rounds to 4.
So 6+4=10
alexandr1967 [171]3 years ago
8 0
10.30 is the correct answer.
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Can you help me please?
morpeh [17]

\bf 3\sqrt{2}-\sqrt{50}+3-\sqrt{8}+\sqrt{288}-\sqrt{9}~~ \begin{cases} 50=2\cdot 5\cdot 5\\ \qquad 2\cdot 5^2\\ 8=2\cdot 2\cdot 2\\ \qquad 2^2\cdot 2\\ 288=2\cdot 2\cdot 2\cdot 2\cdot 2\cdot 3\cdot 3\\ \qquad 2^4\cdot 2\cdot 3^2\\ \qquad 2 (2^2)^2 3^2\\ \qquad 2(2^2 3)^2\\ \qquad 2(12)^2\\ 9=3^2 \end{cases}


\bf 3\sqrt{2}-\sqrt{2\cdot 5^2}+3-\sqrt{2^2\cdot 2}+\sqrt{2\cdot 12^2}-\sqrt{3^2} \\\\\\ 3\sqrt{2}-5\sqrt{2}+3-2\sqrt{2}+12\sqrt{2}-3 \\\\\\ 3\sqrt{2}-5\sqrt{2}-2\sqrt{2}+12\sqrt{2}+3-3\implies \stackrel{\textit{adding like-terms}}{8\sqrt{2}}

7 0
3 years ago
A train left Denver, Colorado at 12:00 going 250 kilometers per hour. How long will it take the train to get to Chicago, Illinoi
Allushta [10]
It will be about 12:55ish at night if the train starts in the day
8 0
3 years ago
Factor 1/4 out of 1/4x -13/4
sweet-ann [11.9K]
\bf \frac{1}{4}(x-13)\qquad 
\begin{cases}
\frac{1}{4}\cdot x\implies &\frac{1}{4}x\\\\
\frac{1}{4}\cdot 13\implies &\frac{13}{4}
\end{cases}
3 0
3 years ago
Rebeckah answered 42 of the 60 questions correctly on a test. Which method should she use to find the percent of questions she a
Mars2501 [29]

Answer:

The last option

Step-by-step explanation:

To find a percentage of something you need

\frac{expected}{total}*100

The expected is correct marks, the total is the total amount - then you multiply by 100 to turn the decimal into a percentage.

6 0
3 years ago
Please help me:(:(:(:(
motikmotik

Answer:

1. 30/14

2. -26.775

3. 0.1668

4. -44/7 which can be simplified into -6 and -2/7

5. $10.96

5 0
3 years ago
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