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3 years ago

What is the verbal sentence for x^2 -9=27

Mathematics

1 answer:

Ratling [72]3 years ago

8 0

X^2 - 9 = 27

the square of a number x decreased by 9 is 27

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5. Using only odd numbers for numerators,

Lady bird [3.3K]

Answer:

3/4 - 1/4 = 1/2
5/8 - 1/8 = 1/2

Step-by-step explanation:

You can pick just about any fraction with an odd numerator and find another at distance 1/2 from it.

For example, 5/7 - 1/2 = 10/14 - 7/14 = 3/14. So your subtraction problem can be ...

5/7 - 3/14 = 1/2

Choosing a denominator divisible by 4 can make both parts of the problem use the same denominator.

3/4 - 2/4 = 1/4, so the corresponding subtraction problem is 3/4 - 1/4 = 1/2.

5/8 - 4/8 = 1/8, so the subtraction problem is 5/8 -1/8 = 1/2.

4 0

3 years ago

Nadia cuts 3 pieces of equal length from 8 yards of ribbon .How is each piece

Volgvan

Your answer is 2.66666667

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3 years ago

What is the quotient of 8592÷24?

frez [133]

Answer:

358

Step-by-step explanation:

6 0

3 years ago

Simplify.<br> Rewrite the expression in the form b^n<br><br> (b^3)^2

Alexxandr [17]

Step-by-step explanation:

$a^n={\underbrace{a\cdot a\cdot a\cdot...\cdot a}_{n}$

<h2>METHOD 1.</h2>

$\left(b^3\right)^2=\underbrace{b^3\cdot b^3}_{2}=\underbrace{b\cdot b\cdot b}_{3}\cdot\underbrace{b\cdot b\cdot b}_{3}=\underbrace{b\cdot b\cdot b\cdot b\cdot b\cdot b}_{6}=b^6$

<h2>METHOD 2.</h2>

$\left(b^3\right)^2=\underbrace{b^3\cdot b^3}_{2}=b^{3+3}=b^6\qquad\text{used}\ a^n\cdot a^m=a^{n+m}$

<h2>METHOD 3.</h2>

$\left(b^3\right)^2=\left(\underbrace{b\cdot b\cdot b}_{3}\right)^2=b^2\cdot b^2\cdot b^2=b^{2+2+2}=b^6\\\text{used}\ (ab)^n=a^nb^n,\ a^n\cdot a^m=a^{n+m}$

<h2>METHOD 4.</h2>

$\left(b^3\right)^2=b^{3\cdot2}=b^6\qquad\text{used}\ \left(a^n\right)^m=a^{nm}$

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3 years ago

Evaluate the expression when m=4<br> m^2-9m-5

enyata [817]

Answer:-25

Step-by-step explanation:

simplify

3 0

3 years ago

Read 2 more answers