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Brut [27]
4 years ago
13

Help me please I don’t understand

Mathematics
1 answer:
LuckyWell [14K]4 years ago
8 0

Answer:

14/11

Step-by-step explanation:

A rational number times a rational number is rational

A rational number is written as a/b

14/11 * 1/2 = 7/11

This is rational

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What are the integer solutions to the inequality below? 3 < 3 x − 1 < 2 x + 6
natita [175]

Answer:

4/3<x<7

Step-by-step explanation:

Given the inequalities

3 < 3 x − 1 < 2 x + 6

Add 1 to all sides

3+1 < 3x-1+1<2x+6+1

4 < 3x < 2x + 7

Split

4 < 3x

3x > 4

x > 4/3

4/3 <x

Also

3x < 2x + 7

3x-2x < 7

x <7

Combine

4/3<x<7

Hence the required solution is 4/3<x<7

3 0
3 years ago
13. If 3 times a number minus 2 equals 13, what is the number?
irina [24]

Answer:

5

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
By how many times does the surface area of a sphere differ if radius is double​
stich3 [128]

<em>If the radius of a sphere is doubled, the surface area becomes four times the original surface area.</em>

6 0
3 years ago
Read 2 more answers
BRAINLIESTT ASAP! MATH EXPERT PLEASE HELP ME :)
Inga [223]

Answer:

Step-by-step explanation:

3 0
4 years ago
I need help please.
JulijaS [17]

Answer:

\frac{7\sqrt{5} }{8}

Step-by-step explanation:

Using the rules of radicals

\sqrt{\frac{a}{b} } = \frac{\sqrt{a} }{\sqrt{b} }

\sqrt{a} × \sqrt{b} ⇔ \sqrt{ab}

Given

\sqrt{\frac{245}{64} } = \frac{\sqrt{245} }{\sqrt{64} }

Simplifying the radicals

\sqrt{245}

= \sqrt{5(7)(7)}

= \sqrt{49(5)}

= \sqrt{49} × \sqrt{5} = 7\sqrt{5}

and

\sqrt{64} = 8

The simplified radical is

\frac{7\sqrt{5} }{8}

3 0
3 years ago
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