All categories

2 years ago

How to solve 7(1+4n)+4

Mathematics

1 answer:

mylen [45]2 years ago

6 0

7 + 28n + 4
28n + (7 + 4)
28n + 11

You might be interested in

What letter is s in 8s=1/2

Tcecarenko [31]

We find the value for s here.

8s = 1/2
$8s = \frac{1}{2} 
 \\ 
8s/8 = \frac{1}{2} / \frac{8}{1} 

$

1/2 divided by 8/1 = 1/2 * 1/8 = 1/16

s = 1/16

7 0

2 years ago

Give pedro jogs every 4 days and Logan jogs every 6 day and I jog together how many days will it take for them to jog again toge

Vinvika [58]

Answer:

8 and 12 days

Step-by-step explanation:

to jog again=double

4x2=8

6x2=12

7 0

3 years ago

A consumer products company found that 44% of successful products also received favorable results from test market research, w

Korolek [52]

Answer:

0.80
0.289
0.20
0.711

Step-by-step explanation:

Given:

$P(S\cap F)=0.44\\P(S\cap F^{c})=0.13\\P(S^{c}\cap F^{c}) = 0.32\\P(S^{c}\cap F) = 0.11$

The rule of total probability states that:

$P(A) = P(A\cap B) + P(A\cap B^{c})$

Compute the individual probabilities as follows:

$P(S) = P(S\cap F) + P(S\cap F^{c})\\=0.44+0.13\\0.57$

$P(S^{c}) = 1 - P(S)\\=1-0.57\\=0.43$

$P(F) = P(S\cap F) + P(S^{c}\cap F)\\=0.44+0.11\\=0.55$

$P(F^{c})=1-P(F)\\=1-0.55\\=0.45$

Conditional probability of an event A given B is:

$P(A|B)=\frac{P(A\cap B)}{P(B)}$

Compute the value of $P(S|F)$ :

$P(S|F)=\frac{P(S\cap F)}{P(F)}\\=\frac{0.44}{0.55}\\=0.80$

Compute the value of $P(S|F^{c})$

$P(S|F^{c})=\frac{P(S\cap F^{c})}{P(F^{c})}\\=\frac{0.13}{0.45}\\=0.289$

Compute the value of $P(S^{c}|F)$

$P(S^{c}|F)=\frac{P(S^{c}\cap F)}{P(F}\\=\frac{0.11}{0.55}\\=0.20$

Compute the value of $P(S^{c}|F^{c})$

$P(S^{c}|F^{c})=\frac{P(S^{c}\cap F^{c})}{P(F^{c})}\\=\frac{0.32}{0.45}\\=0.711$

3 0

3 years ago

Last question on the first Khan assignment!

nikklg [1K]

Answer:

x=6

Step-by-step explanation:

(×+54)+5×=90

6×+54=90

90-54

6×=36

×=6

8 0

2 years ago

Anyone know this I got stuck ?

kenny6666 [7]

first one y=(X-3)(X+1)(X+5)

3 0

2 years ago