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2 years ago

Five more than twice a number is nine. What is the number?

Mathematics

2 answers:

DochEvi [55]2 years ago

5 0

Answer:

nine

Step-by-step explanation:

mr Goodwill [35]2 years ago

5 0

Answer:

Step-by-step explanation:

The number is 2.

Multiply 2 by 2 (twice the number) and you'll get 4. Add 5 (five more) and you'll end up with 9.

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what value in place of the question mark makes the polynomial below a perfect square trinomial 9x^2+?x+49

Tatiana [17]

Hello :
9x²+ bx +49 = (3x)² +2(3x)(7) +7²
so : b = 42
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How do you factor x²-100 ?

Strike441 [17]

Answer:

(x+10)(x-10)

Step-by-step explanation:

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2 years ago

Given f(-3) = -30 for some polynomial, what factor can f(x) be divided by that will result in a remainder of -30?

MissTica

Answer:If you can spot a factor of

f(x)

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Step-by-step explanation:

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1 year ago

What is the volume of this equation?

Pachacha [2.7K]

Answer:

Volume ≈ 33.33 cubic feet

Step-by-step explanation:

The question is:

Find the volume of a right square pyramid with base square edges measuring 5 feet each and a height of the pyramid be 4 feet.

So, the base is a square with side length 5 feet.

And the height of the pyramid is 4 feet.

The volume of a pyramid is given by the formula:

$V=\frac{a^2 h}{3}$

Where

a is the square base side length (given as 5)

h is the height of the pyramid (given as 4)

Now we substitute and find the value:

$V=\frac{a^2 h}{3}\\V=\frac{(5)^2 (4)}{3}\\V=33.33$

The volume is around 33.33 cubic feet

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2 years ago