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3 years ago

Please help it’s a riddle can you find the correct answer

Mathematics

2 answers:

ollegr [7]3 years ago

8 0

I tbh think its 9.9

miss Akunina [59]3 years ago

3 0

It’s 9.9 because it is the only one with 9 and not a one hind

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Which kind of triangle is shown

goblinko [34]

Answer:

Right Scalene Triangle

Step-by-step explanation:

8 0

2 years ago

URGENT!!! Can someone help me with this? It’s volume of cones!!!

LiRa [457]

Answer:

1232 m^3 to nearest whole number.

Step-by-step explanation:

The volume of a cone = 1/3 π r^2 h where r = radius of base and h = height.

The radius of the base = 1/2 * 14 = 7m.

The height can be found by using the Pythagoras theorem:

25^2 = h^2 + 7^2

h^2 = 625 - 49 = 576

h = √576 = 24m

So the volume = 1/3 π * 7^2 * 24

= 1231.504 m^3.

8 0

3 years ago

I need the answer quick pls!!!

Eddi Din [679]

I don’t know sorry
I I don’t know sorry

5 0

3 years ago

15+9=? (5+3) What number is missing from the expression?

Airida [17]

Answer:

<h3> $\boxed{ \boxed{ \bold{ \mathsf{3}}}}$ </h3>

Step-by-step explanation:

Let the missing number be 'x'

⇒ $\mathsf{15 + 9 = x(5 + 3)}$

Distribute x through the parentheses

⇒ $\mathsf{15 + 9 = 5x + 3x}$

Swap the sides of the equation

⇒ $\mathsf{5x + 3x = 15 + 9}$

Add the numbers

⇒ $\mathsf{5x + 3x = 24}$

Collect like terms

⇒ $\mathsf{8x = 24}$

Divide both sides of the equation by 8

⇒ $\mathsf{ \frac{8x}{8} = \frac{24}{8} }$

Calculate

⇒ $\mathsf{x = 3}$

Hope I helped!

Best regards!

4 0

3 years ago

If function F is defined by f(x) = 3x^2 + 5, what is f(x-4)

shepuryov [24]

Answer:

The function f(x) when x=x-4 is $f(x-4)=3x^2-24x+53$ or $f(x-4)=3x(x-8)+53$

Step-by-step explanation:

Given function f is defined by $f(x)=3x^2+5$

Now to find the function f(x-4):

$f(x)=3x^2+5$

Put x=x-4 in the above function we get

$f(x-4)=3(x-4)^2+5$

$f(x-4)=3(x^2-2(x)(4)+4^2)+5$ (using the formula $(a-b)^2=a^2-2ab+b^2$ )

$f(x-4)=3(x^2-8x+16)+5$

$f(x-4)=3x^2-24x+48+5$ (adding the like terms)

$f(x-4)=3x^2-24x+53$

$f(x-4)=3x(x-8)+53$

Therefore $f(x-4)=3x^2-24x+53$ or $f(x-4)=3x(x-8)+53$

The function f(x) when x=x-4 is $f(x-4)=3x^2-24x+53$ or $f(x-4)=3x(x-8)+53$

4 0

3 years ago