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Aleonysh [2.5K]

3 years ago

12

I need help i dot get it.

2 answers:

iren2701 [21]3 years ago

8 0

Answer:

The answer is "about 8."

Step-by-step explanation:

Compatible numbers are pairs of numbers that are easy to add, subtract, multiply, or divide mentally. While it is hard to mentally calculate 55.59 divided by 7.8, it is easier to mentally calculate 56 divided by 7, because they are compatible numbers, and they are close to the numbers given in the problem (55.59 and 7.8). 56 divided by 7 leaves us with a quotient of 8, which is a good estimate for the quotient of 55.59 and 7.8.

gayaneshka [121]3 years ago

6 0

Answer:

the answer is about 8 cuz the answer shows 7.12 if you divide mentally

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Flura [38]

Answer:

800

Step-by-step explanation:

since 300 divided by 15 is 20.

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3 0

3 years ago

Read 2 more answers

Choose the appropriate pattern and use it to find the product: (p4−q4)(p4+q4).

sp2606 [1]

The expression can be solved by expanding the bracket and multiplying out the terms

$(p^4-q^4)(p^4+q^4)$ $\begin{gathered} =p^4(p^4+q^4)-q^4(p^4+q^4) \\ =p^8+p^4q^4-p^4q^4-q^8 \\ =p^8-q^8 \end{gathered}$

Therefore, the expression can be simplified as;

$p^8-q^8$

Alternatively, using the theorem of difference of two squares, which is

$a^2-b^2=(a-b)(a+b)$

Hence,

$p^8-q^8=(p^4)^2-(q^4)^2$

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1 year ago

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olasank [31]

Answer:

<u>-5 ± √5² - 4 · 1 · 4</u>

2 · 1

Step-by-step explanation:

ax²+bx+c=0 (quadratic equation)

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2 years ago

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4 years ago

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Sveta_85 [38]

Answer:

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Step-by-step explanation:

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