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3 years ago

What's the area of a triangle, rectangle, parallelogram

Mathematics

2 answers:

Anuta_ua [19.1K]3 years ago

6 0

Answer:

area

triangle = 1/2 x base x height

rectangle = base x height

parallelogram = base x height

Step-by-step explanation:

-BARSIC- [3]3 years ago

3 0

Answer:

Triangle Area = ½ × b × h b = base h = vertical height

Rectangle Area = w × h w = width h = height

Parallelogram Area = b × h b = base h = vertical height

Step-by-step explanation:

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If you roll a number cube two times, what is the probability of rolling an even on the first roll and a four on the second roll?

Bad White [126]

Answer:

1/12

Step-by-step explanation:

Probability is a ratio derived as the number of possible outcomes divided by the total outcome.

On a number cube, the even sides are 2, 4 and 6. This means that the possible outcome for rolling an even is 3 while the total outcome is 6. Hence the probability of rolling an even P(E)

= 3/6

The probability of rolling a 4 P(4)

= 1/6 (4 appears on one side)

Hence the probability of rolling an even on the first roll and a four on the second roll

P(En4) = 3/6 * 1/6

= 3/36

= 1/12

7 0

3 years ago

The perimeter of the rectangle is 64 cm. find the value of x.

Nesterboy [21]

Is there picture where the x is?
perimeter is the length of the sides. not enough info

3 0

3 years ago

If y varies directly as (x+3) and inversely as (x-3) and y=21 when x=4, what is the equation for y in terms of x?

igor_vitrenko [27]

$\bf \qquad \qquad \textit{double proportional variation}
\\\\
\begin{array}{llll}
\textit{\underline{y} varies directly with \underline{x}}\\
\textit{and inversely with \underline{z}}
\end{array}\implies y=\cfrac{kx}{z}\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad variation
\end{array}\\\\
-------------------------------\\\\$

$\bf \textit{\underline{y} varies directly as (x+3) and inversely as (x-3)}\implies y=\cfrac{k(x+3)}{x-3}
\\\\\\
\textit{we also know that }
\begin{cases}
y=21\\
x=4
\end{cases}\implies 21=\cfrac{k(4+3)}{4-3}\implies 21=\cfrac{k(7)}{1}
\\\\\\
\cfrac{21}{7}=k\implies 3=k\qquad thus\qquad \qquad \boxed{y=\cfrac{3(x+3)}{x-3}}$

6 0

3 years ago

Help help help help help

VLD [36.1K]

Answer:

x>22

Step-by-step explanation:

3(x+4)>18

3x+12> 54

3x>66

x>22

8 0

3 years ago

РАЗЛОЖИТЕ НА МНОЖИТЕЛИ ОЧЕНЬ НАДО ДАЮ ВСЕ ЧТО ЕСТЬ ПОМОГИТЕ ПРОШУ !1!1!1!!11!!1

dexar [7]

Answer:

I'm not sure i don't read thing langa no cap

Step-by-step explanation:

4 0

3 years ago