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Vilka [71]
4 years ago
8

21=cd+e solve for d ( please help!!)

Mathematics
2 answers:
aliya0001 [1]4 years ago
7 0
Here's the answer in more detail.

lidiya [134]4 years ago
7 0
21=cd+e \ \ \ \to \ \ \ 21-e=cd \ \ \ \to \ \ \ d= \cfrac{21-e}{c}
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The school newspaper surveyed the student body for an article about club membership. The table
lukranit [14]
25% of the 9th grade belongs to more than one club.

9th grade population 180

1 club                    =    90
2 clubs                  =    33
3 or more clubs    <u>=    12</u> 
Students w/ clubs    135

2 clubs + 3 or more clubs = 33 + 12 = 45 ÷ 180 = 0.25 x 100% = 25%
1 club = 90 ÷ 180 = 0.50 x 100% = 50%
no club = 180 - 135 = 45 ÷ 180 = 0.25 x 100% = 25%
4 0
3 years ago
Ao cobrar uma falta em um jogo de futebol, uma jogador imprime à bola a uma velocidade de 43,2 km/h. Sabendo que a bola gasta 3
Yakvenalex [24]

Answer:

B

Step-by-step explanation:

Nesta questão, estamos interessados ​​em calcular a distância percorrida se um jogador correr a uma velocidade de 43,2 km / h por 3 segundos.

Matematicamente; a distância percorrida = velocidade * tempo

O problema que temos aqui é que nossas unidades não são consistentes.

A melhor maneira de fazer isso é ter unidades consistentes em metros por segundos e segundos, pois nossa resposta está em metros.

Portanto, a conversão que precisamos fazer aqui é converter 43,2 km / h em metros por segundo Matematicamente, sabemos que existem 1000 m em um quilômetro.

Da mesma forma, uma vez que 60 segundos fazem um minuto e 60 minutos fazem uma hora, o número de segundos em uma hora é 60 * 60 = 3.600 segundos

Assim, convertendo 43,2 km / h em m / s, temos; (43,2 * 1000) / 3600 = 12 m / s

Portanto, a distância percorrida em metros seria agora; velocidade em m / s * tempo em segundos = 12 m / s * 3 segundos = 36 m

5 0
4 years ago
What sequence is modeled by the graph below?
Lady bird [3.3K]

ANSWER

a_n= \frac{1}{2}( {2}^{n - 1} )

EXPLANATION

The corresponding ordered pairs from the graph are:

(2,1) (3,2) (4,4) (5,8)

The y-values are:

1,2,4,8

The first term term is the term before 1,this has to be.

a_1= \frac{1}{2}

The common ratio is

r =  \frac{2}{1}  = 2

The nth term is given by

a_n=a_1 {(r}^{n - 1} )

Let's substitute the values to get,

a_n= \frac{1}{2} \times  {(2}^{n - 1} )

This simplifies to,

a_n= \frac{1}{2} {(2}^{n - 1} )

3 0
4 years ago
Someone pls answer this for me
Mandarinka [93]

Answer:

34

Step-by-step explanation:

8 1/2 x 4

3 0
3 years ago
Read 2 more answers
Urgent plz help me i need to submit IF ANSWERED FOR POINTS, WILL REPORT plz dont do so
aalyn [17]

Answer:

Step-by-step explanation:

1st question: perimeter is 34 m; area is 44m^2

2nd question: perimeter: 20.3 ft; area is 13

3rd question: 32 units^2 (I might be wrong)

4th question: 105 in^2

3 0
3 years ago
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