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3 years ago

Which expression represents the phrase? "6 less than the sum of 9 and d." A) 6 – 9d B) 9d + 6 C) 6 – (9 + d) D) (9 + d) – 6

Mathematics

2 answers:

Tamiku [17]3 years ago

7 0

Answer:

(9+d) - 6

Step-by-step explanation:

6 less than the sum of 9 and d

First we do the sum since less than means it comes after

(9+d)

Then subtract 6

(9+d) - 6

Tresset [83]3 years ago

5 0

Answer:D) (9+d) - 6

Step-by-step explanation:First we do the sum since less than means it comes after

(9+d)

Then subtract 6

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Each interior angle of a regular polygon is 140°.Find the number of sides

castortr0y [4]

Step-by-step explanation:

Each interior angle=140°

(n-2)180°/n=140°

180°n-360°/n=140°

180°n-360°=140°n

180°-140°=360°

40°n=360°

n=360°/40°

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Hence, the number of sides of the polygon is 9.

It is nonagon .

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3 years ago

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Answer:

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3 years ago

Write 2.71x10-3 as an ordinary number.

Katyanochek1 [597]

Step-by-step explanation:

${2.71 \times 10}^{ - 3}$

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2 years ago

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Step-by-step explanation:

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2 years ago

Simplify the imaginary number sqr -75

m_a_m_a [10]

Answer:

5i $\sqrt{3}$

Step-by-step explanation:

Using the rule of radicals

$\sqrt{a}$ × $\sqrt{b}$ ⇔ $\sqrt{ab}$

and $\sqrt{-1}$ = i

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$\sqrt{-75}$

= $\sqrt{25(3)(-1)}$

= $\sqrt{25}$ × $\sqrt{3}$ × $\sqrt{-1}$

= 5 × $\sqrt{3}$ × i

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3 years ago