3 years ago

Please help me on this question

Mathematics

1 answer:

slamgirl [31]3 years ago

6 0

3.1 miles left to go (3/3-2/3= 1/3, 1/3×9.3=3.1)

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olga55 [171]

Answer is 25 x 2x + 729/25

6 0

3 years ago

Which of the following is the quotient of b and a?

vlabodo [156]

$\bf 19^{\frac{7}{4}}\cdot \sqrt[a]{19^b}=19^{\frac{5}{2}}\sqrt{19}\\\\
-----------------------------\\\\
a^{\frac{{ n}}{{ m}}} \implies \sqrt[{ m}]{a^{ n}} \qquad \qquad
\sqrt[{ m}]{a^{ n}}\implies a^{\frac{{ n}}{{ m}}}\\\\
-----------------------------\\\\
thus\qquad 19^{\frac{7}{4}}\cdot 19^{\frac{b}{a}}=19^{\frac{5}{2}}\cdot 19^{\frac{1}{2}}\implies 19^{\frac{7}{4}+\frac{b}{a}}=19^{\frac{5}{2}+\frac{1}{2}}
\\\\\\
$

$\bf 19^{\frac{7}{4}+\frac{b}{a}}=19^{\frac{6}{2}}\implies 19^{\frac{7}{4}+\frac{b}{a}}=19^3\impliedby 
\begin{array}{llll}
\textit{same base, thus}\\
\textit{exponents must be the same}
\end{array}
\\\\\\
\cfrac{7}{4}+\cfrac{b}{a}=3\implies \cfrac{b}{a}=3-\cfrac{7}{4}$

5 0

3 years ago

Tia's teacher asked her to find the product of 8 and 207 in her head. Which of the following describes the best way for Tia to m

Mkey [24]

Answer:

the answer is number 2

Step-by-step explanation:

207 200

x 8 x 8

1656 1600

+ 56

1656

3 0

4 years ago

A farm uses a circular system to water the crops. The arm on the system (the radius) is 400 meters long. What area of land can i

ElenaW [278]

To answer this question you would need to know the formula for the area of a circle, $\pi r^{2}$ . You would start by squaring 400, getting 160,000. You would then multiply 160,000 by 3.14, getting 502,400 meters squared as your answer.

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4 years ago

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harkovskaia [24]

Can you work out what one share is
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2 years ago

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