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atroni [7]
2 years ago
5

Which is the domain of the function f(x) = -

Mathematics
1 answer:
lara [203]2 years ago
6 0

Answer:

all real is the okkkkkkkkkk

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If k is a constant, what is the value of k such that the polynomial 2ky^-kx-8 is divisible by (x-2)
just olya [345]

Answer:we have that

k² x³-6kx+9

we know that

The Remainder Theorem says: If the polynomial f(x) is divisible by a bynomial (x-a) then the number "a" is a root of the polynomial f(x)

so

x=1  is a root of the polynomial

therefore

for x=1

k² x³-6kx+9=0--------> k² (1)³-6k(1)+9=0-----> k²-6k+9=0

using a graph tool------> to resolve the second order equation

the solution is

k=3

k=3

k²-6k+9=0---------> (k-3)²=0

the answer is

k=3

4 0
2 years ago
Read 2 more answers
Robert drove at an average speed of 60 miles per hour for 6 hours. Nancy drove for 7 hours at an average speed of 56 miles per h
g100num [7]
A)1. 60/6=10
2. 56/7=8
3. 10-8=2

B)1.10
2.8
3.10+8=18

C)1. 360
2.392
3. 360+392=752

D)1. 360
2. 392
3. 360-392=-32
8 0
3 years ago
Karen collects 6/7 quart of rainwater. She uses 1/2 of the water to clean her bicycle and uses the remaining water equally for 3
quester [9]
Water collected - 6/7
Water used for cleaning bicycle = 1/2 × 6/7 = 6/14
Water used for each houseplant =>6/14 ÷ 3 = 2/14 = 1/7
3 0
2 years ago
Enter the equation of the line in the form y=mx+b where m is the slope and b is the y-intercept.
rusak2 [61]

y=1.5x-2

Hope this helps

7 0
2 years ago
Uma loja de equipamentos eletrônicos anunciou um celular com duas opções de venda. Na primeira opção, o pagamento pode ser feito
Lena [83]

Responda:

Preço = $ 400

Explicação passo a passo:

Dado que:

Primeira opção :

Pagamento em 5 investimento igual

Segunda opçao :

Pagamento feito em 8 iguais. Investimento

O preço por parcela do primeiro investimento é 30 a mais do que cada um do segundo

Deixe o preço do telefone = p

Valor por prestação = x

Segunda parcela:

Preço = 8x

Primeiro :

Valor por parcela = x + 30

P = 5 (x + 30)

Preço = 5x + 150

Portanto, igualando as duas equações:

8x = 5x + 150

8x - 3x = 150

5x = 150

x = $ 50

Usando qualquer das equações de preço:

Preço = 8x

Preço = 8 * 50

Preço do telefone = $ 400

3 0
3 years ago
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