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4 years ago

How many cubes with 5-inch sides will completely fill a cube that is

Mathematics

1 answer:

Romashka-Z-Leto [24]4 years ago

6 0

There are 8 because

5³ ⇒ 125

There are 1000 cubic inches.

And 1000 ÷ 125 ⇒ 8

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How to solve these equations?

Scorpion4ik [409]

1) / sin x / = y ≥ 0 ;
We solve the equation $y^{2} +y - 2 = 0 ;
$
a = 1 ; b = 1 ; c = - 2 ;
$b^{2} - 4ac = 9 ;$
y1 = ( - 1 + 3 ) / 2 = 1 ≥ 0 ( correct ) ;
y2 = ( - 1 - 3 ) / 2 = - 2 ≥ 0 ( false ) ;
Then, / sin x / = 1 ;
sinx = + 1 or sin x = - 1 ;
x ∈ { 90 } U { 270 } ;
x ∈ {90 , 270}.

8 0

3 years ago

Helpppp fast I will kill my self <br> Please only question 1

castortr0y [4]

Don’t kill you self because it’s not that serious okay? Also I have no idea what this is

8 0

3 years ago

The function for the cost of materials to make a shirt is f(x) = five sixths x + 5, where x is the number of shirts. The functio

Mrac [35]

$\bf \begin{cases}
f(x)=\cfrac{5}{6}x+5\\\\
g(x)=5x+6
\end{cases}\qquad g(\ f(x)\ )=5[\ f(x)\ ]+6
\\\\\\
f(18)=\cfrac{5}{6}(18)+5\implies f(18)=\cfrac{5\cdot 18}{6}+5\implies f(18)=15+5
\\\\\\
\boxed{f(18)=20}\\\\
-------------------------------\\\\
g(\ f(18)\ )=5[\ f(18)\ ]+6\implies g(\ f(18)\ )=5[\ 20\ ]+6
\\\\\\
g(\ f(18)\ )=106$

7 0

4 years ago

1. Eight people work in an office. They are paid hourly rates of 12£,15£,15£,14£,14£,13£,14£,13£

bearhunter [10]

Answer:

mean=110/8 =13.75 pounds; median=14 pounds; mode=14 pounds; average=13.75 pounds

Step-by-step explanation:

mean=add all the numbers together to get total then divide that total by the number of amounts present 12, 15, 15, 14, 14, 13, 14, 13 =110, then 110/8=13.75 pounds

mode=arrange amounts in order (smallest to largest), then determine which amount appears more than the other amounts 12, 13, 13, 14, 14, 14, 15, 15 =14 appears the most

median=organize numbers from smallest to greatest, count how many there are, then determine which number appears in the middle of all of them 12, 13, 13, 14, 14, 14, 15, 15 = there are 8 numbers present but 14 is in the middle; answer =14

average= take total of mean, then divide it by the number of amounts that appear 110/8 =13.75

8 0

3 years ago

How do you solve -15 = 6x + 15-10x

Sergeeva-Olga [200]

-15 = 6x + 15 -10x

1st. You combine like terms

(6-10)x

-15 = -4x + 15

2nd. You move variables to the left side and change the sign

-15 = -4x + 15

+4x +4x

4x - 15 = 15

+15 +15

4x = 30

3rd. You divide both sides of the equation by 4

(4x) /4 = (30) /4

x= 30/4

4th. Reduce the fraction by 2

30/ 4 = 15/2

Answer is 15/2

4 0

4 years ago