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3 years ago

PLEASE HELP ASAP!!! CORRECT ANSWERS ONLY PLEASE!!!

Mathematics

2 answers:

sattari [20]3 years ago

6 0

Answer: B

Step-by-step explanation:

$\sqrt{100} + \sqrt{-81}$

$\sqrt{100} = 10$
$\sqrt{-81} = \sqrt{-1} * \sqrt{81} = i * 9 = 9i$

$\sqrt{100} + \sqrt{-81}$

= 10 + 9i

Natalka [10]3 years ago

5 0

Answer:

i think the answer would be C

Step-by-step explanation:

since it seemed you had to divide the numbers a hundred would turn into ten and ninety would turn into nine and because you have one negative and one positive that means it would have to be a negative so it would be

10 - 9i

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Discount on LCD TV is $240. Sale Price is $1575.00 What was the list price?

Vikki [24]

Answer: The list price was $1815.00.

Step-by-step explanation: Given that the discount on a LCD TV is $240 and the sale price is $1575.00.

We are to find the list price.

The discount is given on the price that is listen on the LCD TV.

So, the list price will be equal to the sum of the sale price and the discount price.

Therefore, the required list price of the LCD TV is given by

$L.P.\\\\=\textup{sale price}+\textup{discount}\\\\=\$(1575.00+240.00)\\\\=\$1815.00.$

Thus, the list price was $1815.00.

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3 years ago

12 – 7x ≤-2 solve and show work

vova2212 [387]

Answer:

x≥2

Step-by-step explanation:

Let's solve your inequality step-by-step.

12−7x≤−2

Step 1: Simplify both sides of the inequality.

−7x+12≤−2

Step 2: Subtract 12 from both sides.

−7x+12−12≤−2−12

−7x≤−14

Step 3: Divide both sides by -7.

−7x/−7 ≤ −14/−7

x≥2

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2 years ago

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3 years ago

Read 2 more answers

3. Convert 150 yards per minute to feet per day.

vesna_86 [32]

One day has 24 hours.

One hour has 60 minutes.

One day has 24 x 60 = 1440 minutes.

1 yard is 3 feet.

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150 yards per minute = 450 feet per minute.

450 x 1440 = 648,000 feet per day.

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Answer:

$\frac{3}{5}$

Step-by-step explanation:

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