3 years ago

Estimate the difference of the decimals below by rounding to the nearest whole number 42.706 - 4.423= ?

Mathematics

1 answer:

Aneli [31]3 years ago

4 0

The answer would be 39

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4. In the diagram below, ZABD = (4x + 3)º and DBC = (7x-6)º.

blsea [12.9K]

Answer:

Step-by-step explanation:

a) ∠ABD + ∠DBC = 90°

4x - 3 + 7x - 6 = 90

4x + 7x - 3 - 6 = 90

11x - 9 = 90

11x = 90 + 9

11x = 99

x = 99/11

x = 9

∠ABD = 4*9 - 3 = 36 - 3 = 33

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2 years ago

Simplify.<br><br> n 6 · n 5 ÷ n 4 · n 3 ÷ n 2 · n

trasher [3.6K]

Answer: $n^{9}$

Step-by-step explanation:

Given expression: $n^6\cdot n^5\div n^4\cdot n^3\div n^2\cdot n$

The law of exponents are given by :_

$a^m\cdot a^n=a^{m+n}\\\\a^m\div a^n=a^{m-n}$

Using PEDMAS, first we solve division, we get

$n^6\cdot n^{5-4}\cdot n^{3-2}\cdot n\\\\=n^6\cdot n\cdot n\cdot n$

Now, using product law of exponent we get

$n^{6+1+1+1}\\\\=n^{9}$

7 0

3 years ago

Read 2 more answers

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lana66690 [7]

The answer is D. y=-1/2x

7 0

3 years ago

Some helps ASAP plss!!!

larisa86 [58]

Answer: D Triangle EFG

Hope this helps and congruent means the shaped that are same in shape and size

4 0

3 years ago

The value of 7 rounded to the nearest hundredth

erma4kov [3.2K]

Answer: 9.22

Step-by-step explanation:

2^2 + 9^2 = C^2

4+81=C^2

85=C^2

(square root both sides)

C=9.219544

C=9.22

3 0

3 years ago