Which of the following statements is false? (5 points)

Mathematics

2 answers:

jeyben [28]2 years ago

7 0

Answer:

The sum of two rational numbers is always rational

Step-by-step explanation:

The sum of numbers always terminate and ends.

Aliun [14]2 years ago

3 0

Answer:

Step-by-step explanation:

The sum of two irrational numbers is always still irrational.

5√3 + 6√5 is still going to be irrational. You cannot find two such numbers adding to rational.

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5/4 to 3/8 as a percent change

Digiron [165]

Well, what's the diffrence from 5/4 to 3/8?

$\bf \cfrac{5}{4}-\cfrac{3}{8}\qquad \stackrel{\textit{LCD is 8 clearly}}{\implies }\qquad \cfrac{10-3}{8}\implies \cfrac{7}{8}$

so, if we take 5/4 to be the 100%, what is 7/8 off of it in percentage anyway?

$\bf \begin{array}{ccll}
amount&\%\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
\frac{5}{4}&100\\\\
\frac{7}{8}&x
\end{array}\implies \cfrac{\quad \frac{5}{4}\quad }{\frac{7}{8}}=\cfrac{100}{x}\implies \cfrac{5}{4}\cdot \cfrac{8}{7}=\cfrac{100}{x}
\\\\\\
\cfrac{40}{28}=\cfrac{100}{x}\implies x=\cfrac{28\cdot 100}{40}$

5 0

3 years ago

You got 8 correct out of 9 points.

kkurt [141]

Are you looking for the percentage? If you are, then you just have to find 8/9, which is about 0.89, or 89%.

4 0

3 years ago

If the average weight of sophomore boys in Arizona is 140 pounds with a standard

yKpoI14uk [10]

Answer:

Light

Step-by-step explanation:

He is below the standard deviation limits for average or normal.

5 0

3 years ago

A four-sided plane figure has sides measuring 10, 15, 10 and 15. The opposite angles are equal, but there are no right angles. w

Usimov [2.4K]

The correct answer is A- rhombus

8 0

3 years ago

Please help me lol (quadratics unit on khan)

EastWind [94]

Answer:

(2-x)^2 sorry if that’s wrong

Step-by-step explanation:

sorry

5 0

2 years ago