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Tresset [83]
3 years ago
10

40-50-60Work out2 × 1/7 -1 2/5Give your answer in its simplest form.​

Mathematics
1 answer:
MAVERICK [17]3 years ago
5 0

Answer:

the simplest form of the given expression is -1\frac{4}{35}

Step-by-step explanation:

Given;

2 \times  \frac{1}{7}  -  1\frac{2}{5}

The above expression can be simplified as follows;

2 \times  \frac{1}{7}  -  1\frac{2}{5} \\\\=\frac{2}{7} - \frac{7}{5} \\\\= l.c.m \ of \ 7 \ and \ 5 \ is \ 35\\\\= \frac{5(2) - 7(7)}{35} \\\\= \frac{10 - 49}{35} \\\\= -\frac{39}{35} \\\\= - 1\frac{4}{35}

Therefore, the simplest form of the given expression is -1\frac{4}{35}

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Find the length of the segment indicated. Round to the nearest tenth if necessary.
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Step-by-step explanation:

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3 0
3 years ago
Need the a answer for this
FinnZ [79.3K]

Answer:

Given expression:

\dfrac{14a^4b^6c^{-10}}{8a^{-2}b^3c^{-5}}

Separate the variables:

\implies \dfrac{14}{8} \cdot \dfrac{a^4}{a^{-2}} \cdot \dfrac{b^6}{b^3} \cdot \dfrac{c^{-10}}{c^{-5}}

Reduce the first fraction:

\implies \dfrac{7}{4} \cdot \dfrac{a^4}{a^{-2}} \cdot \dfrac{b^6}{b^3} \cdot \dfrac{c^{-10}}{c^{-5}}

\textsf{Apply Division Property of Exponents rule} \quad \dfrac{a^b}{a^c}=a^{b-c}:

\implies \dfrac{7}{4} \cdot a^{4-(-2)} \cdot b^{6-3} \cdot c^{-10-(-5)}

\implies \dfrac{7}{4} \cdot a^{6} \cdot b^{3} \cdot c^{-5}

\textsf{Apply Negative Property of Exponents rule} \quad a^{-n}=\dfrac{1}{a^n}

\implies \dfrac{7}{4} \cdot a^{6} \cdot b^{3} \cdot \dfrac{1}{c^5}

Therefore:

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4 0
2 years ago
Can someone answer this for me
Vlada [557]

Answer:

s=4

Step-by-step explanation:

area of square is side*side

so that means s*s=16

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8 0
3 years ago
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creativ13 [48]
Tan a = \frac{7}{9}
a = Tan^{-1}  \frac{7}{9}
a = 37.875°
4 0
3 years ago
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