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professor190 [17]
3 years ago
12

In verbal expression X^4-12

Mathematics
1 answer:
kolezko [41]3 years ago
8 0
12 less than x to the fourth power
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Complete the equations bellow.
Step2247 [10]
What equations? Explanation:
7 0
3 years ago
3) in clinical trials of Nasonex, 3774 adult and adolescent allergy patients (ages 12 and older) were randomly
Nonamiya [84]

Fun.  I prefer Oxymetazoline.

For the control group we have a headache probability of

c = 368/1671 = .220

For the experimental group we have a headache probability of

e = 494/2013 = .245

The observed difference is

d = e - c = .025

The variance of the difference is

s² = c(1-c)/n₁ + e(1-e)/n₂

so the standard deviation is

s=\sqrt{.220(1-.220)/1671 + .245(1-.245)/2013} = 0.0139

We get a t statistic on the difference of

t = d/s = .025/.0139 = 1.79

We're interested in the one sided test, P(d > 0).  We have enough dfs to assume normality. We look up in the standard normal table

P(z < 1.79) = .96327

so

p = P(z > 1.79) = 1 - .96327  = 0.037 = 3.7%

Answer: That's less that 10% so we have evidence to conclude that headaches are significantly greater in the experimental group.

7 0
4 years ago
1. Triangle ABC is dilated by a scale factor of 1.5 to create triangle A'B'C'. Which of
patriot [66]

Answer:

d

Step-by-step explanation:

because it gets bigger so they are not going to have the same measures or lenghts.

3 0
3 years ago
NEED HELP ASAP! Arianna correctly simplified an expression. When she substituted \ into the simplified expression, the value was
erastova [34]

Answer:

<em>(1/6)(-10x - 4) = -4 </em>

Step-by-step explanation:

(1/6)(-3x - 24) = -4

=> -3x - 24 = -4 x 6

=> -3x - 24 = -24

=> -3x = 24 - 24

=> -3x = 0

=> x = 0 (not 2) => Incorrect option

(1/6)(-5x - 8) = -4

=> -5x - 8 = -4 x 6

=> -5x - 8 = -24

=> -5x = 8 - 24

=> -5x = -16

=> x = 16/5 (not 2) => Incorrect option

(1/6)(-10x - 4) = -4

=> -10x - 4 = -4 x 6

=> -10x - 4 = -24

=> -10x = 4 - 24

=> -10x = -20

=> x = 2 => Correct option

(1/6)(-12x - 16) = -4

=> -12x - 16 = -4 x 6

=> -12x - 16 = -24

=> -12x = 16 - 24

=> -12x = 8

=> x = -3/4 (not 2) => Incorrect option

=> Option C is correct

Hope this helps!

3 0
4 years ago
Read 2 more answers
There are 4 sports stores,9 clothing stores and 6 jewelry stores ina shopping crnter which ratio compares the number of sports s
Pani-rosa [81]

The ratio is  2 : 9

Step-by-step explanation:

Given:

The number of sports store = 4

The number of clothing store  = 9

The number of jewellery stores = 5

To Find :

The ratio of number of sports stores to the total number of stores

Solution:

The ratio of number of sports stores to the total number of stores

= \frac{\text{number of sports store}}{\text{ Total number of stores}}

The total number of stores =  number of sports store + number of clothing store + number of jewellery store

The total number of stores = 4 + 9 + 5

The total number of stores = 18

Now the ratio is

= \frac{4}{18}   or 4  :  8

The ratio after reduction is

=\frac{2}{9} or 2 : 9  or   2 to 9

7 0
4 years ago
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