2 years ago

Could someone answer this please NO LINKS AND REAL ANSWERS!!

Mathematics

1 answer:

Angelina_Jolie [31]2 years ago

4 0

Answer:

im doing the same thing were the same

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What is -a^-2 if a=-5

Leviafan [203]

$-a^{-2}=-(-5)^{-2}=-\left(\dfrac{1}{-5}\right)^2=-\dfrac{1}{25}$

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2 years ago

Find the length of side x I simplest radical form

alekssr [168]

Answer:

Option A

Step-by-step explanation:

By applying Pythagoras theorem in ΔABC,

(Hypotenuse)² = (Leg 1)² + (Leg 2)²

AC² = AB² + BC²

AC² = 6² + 5²

AC = $\sqrt{61}$

Similarly, by applying Pythagoras theorem in ΔACD,

AD² = AC² + CD²

(10)² = $(\sqrt{61})^2$ + x²

x² = 100- 61

x² = 39

x = √(39)

Option A will be the answer.

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2 years ago

At an electronic store, an air conditioner marked at 280$ was on sale at $259 what was the percentage of discount for the air co

Whitepunk [10]

Answer:

7.5%

Step-by-step explanation:

280 - 259 = 21

21 / 280 = 0.075 = 7.5%

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2 years ago

Bonjour,pouvez vous m’aider ;)

Orlov [11]

Answer:

je suis super nul en math desolee

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2 years ago

Find the domain of the function:<br><br> V(X)= the square root of 9+X

stellarik [79]

Answer:

[-9,∞)

Step-by-step explanation:

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3 years ago