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3 years ago

Tell whether the given value is a solution of the inequality. 15n > -3; n = -2

Mathematics

1 answer:

Vanyuwa [196]3 years ago

8 0

Answer: no

Step-by-step explanation:

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Please help me !! simplify the following answer :

OleMash [197]

We evaluate the polynomial at x= -1 and get

$7 (-1)^3 + 5(-1)^2 - 2 = -7 + 5 - 2 = -4$

Answer: -4

6 0

4 years ago

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What is the sum of 6 pints and 4 cups? 10 cups 24 cups 1 gallon 2 quarts

gregori [183]

6 pints = .75 gallon
4 cups = .25 gallon
so if you add .75 and .25, it should equal 1 gallon.

5 0

4 years ago

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Find all solutions and write the answer in a general form. 6 sec2(x) − 6 = 0

Afina-wow [57]

Answer:

x = pi n

Step-by-step explanation:

6 sec^2(x) − 6 = 0

Add 6 to each side

6 sec^2(x) − 6+6 = 0+6

6 sec^2(x)=6

Divide by 6

sec^2(x) = 1

Take the square root of each side

sqrt( sec^2(x) ) = ±sqrt(1)

sec(x) =± 1

sec (x) = 1 sec(x) = -1

Take the inverse sec of each side

sec^-1(sec (x)) = sec^-1(1) sec^-1(sec (x)) = sec^-1(-1)

x = 2 pi n x = pi + 2 pi n where n is an integer

Combining

x = pi n

3 0

3 years ago

Mr. Snow bought 90 grams of Christmas candy for each of his 14 grandchildren. How many total kilograms of candy did he buy?

nignag [31]

Answer:

1.26 kg.

Step-by-step explanation:

We have been given that Mr. Snow bought 90 grams of Christmas candy for each of his 14 grandchildren. We are asked to find the amount of candy bought by Mr. Snow in kilograms.

First of all, we will find the amount of candy in grams by multiplying 90 grams by 14 as:

$\text{Amount of candy bought in grams}=14\times 90$

$\text{Amount of candy bought in grams}=1260$

We know that 1 kilogram is equal to 1000 grams. To convert 1260 grams into kg, we will divide 1260 by 1000 as:

$\text{Amount of candy bought in kilograms}=\frac{1260}{1000}$

$\text{Amount of candy bought in kilograms}=1.26$

Therefore, Mr. Snow bought 1.26 kilograms of candy.

7 0

3 years ago

A submarine descended 500 feet below sea level. It then descended another 275 feet. Write and then evaluate a subtraction expres

kaheart [24]

Answer:

-500-275= -775

-500+-275=-775

Step-by-step explanation:

3 0

3 years ago

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