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3 years ago

Plz give 8th and 9th question

Mathematics

1 answer:

Neko [114]3 years ago

3 0

Answer:

for number 8 it is the multiplictivie inverse because you just do 8/9 x 2 so it would be correct and for number 9 it is not the multiplicative inverse because it is not reversing it also can i pls get brainliest

Step-by-step explanation:

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Please help. Show all work:)

Alex787 [66]

Answer:

Step-by-step explanation:

$(3+\sqrt{-16})(6-\sqrt{-64})=(3+4\sqrt{-1})(6-8\sqrt{-1})=2(3+4\sqrt{-1})(3-4\sqrt{-1})\\\\=2(3^2-(4\sqrt{-1})^2)=2(9-(-16))\\\\=2(25)=50$

We make use of the special form for the difference of squares:

(a+b)(a-b) = a²-b²

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3 years ago

PLZ HELP A. S. A. P.!!

tangare [24]

Since -2 is less than -1 (-2<-1) You will plug -2 into the first equation. -2+8=6
Your answer is 6.

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3 years ago

What is the area of the sector for the following circle? Round your answer to 4 decimal places. *

MAXImum [283]

Answer:

Area = 13.0900 ft²

Step-by-step explanation:

Area of sector = θ/360 × πr²

We are assuming it's the area of the minor sector that we are asked to find.

Therefore,

θ = 360 - 300 = 60°

r = 5 ft

Plug in the values

Area of minor sector = 60/360 × π × 5²

Area = 13.0899694

Area = 13.0900 ft² (to 4 decimal places)

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3 years ago

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Answer:

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Step-by-step explanation:

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Answer:

Step-by-step explanation:

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Plz give 8th and 9th question​

Plz give 8th and 9th question