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2 years ago

Plz help ill give u brainlist

Mathematics

1 answer:

Strike441 [17]2 years ago

7 0

Volume of a pyramid: 1/3(length x width x height)

Since it is a square pyramid, the base is a square, which means that the length and width of the base is 7 cm (the same).

Plug the numbers into the formula.

1/3(7 x 7 x 12) = 196

The volume is 196 cm³.

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If x > y, then will always be an integer. True Or false

gayaneshka [121]

Answer:true

Step-by-step explanation:

3 0

2 years ago

Consider the radical equation (3√6-x)+4=-8. Explain why the calculation in Problem 1 does not produce a solution to the equation

murzikaleks [220]

Answer:

See explanation below

Step-by-step explanation:

First we will solve the radical equation (which I guess was problem 1),

Let's start by simplifying it:

$3\sqrt{6-x}+4=-8\\ 3\sqrt{6-x}=-8-4\\ 3\sqrt{6-x}=-12\\\sqrt{6-x}=-4$

Now we will solve the equation by squaring both sides of the equation:

$\sqrt{6-x} =-4\\6-x=-4^{2} \\6-x=16\\-x=16-6\\-x=10\\x=-10$

So the calculation for x was that x = -10

However, this does not produce a solution to the equation: When we plug this value into the radical equation we get:

$3\sqrt{6-x} +4= -8\\3\sqrt{6-(-10)} +4=-8\\3\sqrt{16}+4 = -8\\ 3(4)+4 = -8\\12 + 4 = -8$

This happens because when we first squared both sides of the equation in the first part of the problem we missed one value for x (remember that all roots have 2 answers, a positive one and a negative one) while squares are always positive.

When we squared the root, we missed one value for x and that is why the calculation does not produce a solution to the equation.

6 0

2 years ago

On a scale drawing, 9 inches represents 11 miles. How many inches represent 55 miles?

Elodia [21]

Answer: you will get 45

Step-by-step explanation:

If you do 9x5=45 and 11x5=55

So the answer would be 45

6 0

1 year ago

-5y + 12 + 8y − 6 − 2 = ______ help plz

Sladkaya [172]

Answer:

(combine like terms)

-5y + 12 + 8y − 6 − 2

3y+12-8

3y+4

3 0

2 years ago

What is the answer to -1/2 ÷ (-1 3/8) Correct answers get brainliest

Ymorist [56]

Answer:

-4/11

Step-by-step explanation:

The easiest way to find the answer to this is by a calculator.

6 0

2 years ago