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3 years ago

8(x - 1) - 4 = 4(2x - 3)

Mathematics

1 answer:

nordsb [41]3 years ago

6 0

Answer:

All real numbers.

Step-by-step explanation:

8x-8-4=8x-12

8x-12=8x-12

All real numbers

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Write an equivalent form of the exponential expression: (x4)3

ELEN [110]

Answer:

x¹²

Step-by-step explanation:

You need to indicate which terms are exponents. For example, (x⁴)³ can be written as (x^4)^3.

(x⁴)³ = x⁴*³ = x¹²

5 0

2 years ago

Walter from a leaking faucet is dripping into a cylindrical cup. The weight of water in inches, why, after x hours is graphed be

Anastasy [175]

Answer:

CStep-by-step explanation:

7 0

2 years ago

The mean income per person in the United States is $44,500, and the distribution of incomes follows a normal distribution. A ran

Artist 52 [7]

Answer:

We conclude that the residents of Wilmington, Delaware, have higher income than the national average

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = $44,500

Sample mean, $\bar{x}$ = $52,500

Sample size, n = 16

Alpha, α = 0.05

Sample standard deviation, s = $9,500

a) First, we design the null and the alternate hypothesis

$H_{0}: \mu = 44,500\text{ dollars}\\H_A: \mu > 44,500\text{ dollars}$

We use one-tailed(right) t test to perform this hypothesis.

c) Formula:

$t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n}} }$

Putting all the values, we have

$t_{stat} = \displaystyle\frac{52500 - 44500}{\frac{9500}{\sqrt{16}} } = 3.37$

b) Rejection rule

If the calculated t-statistic is greater than the t-critical value, we fail to accept the null hypothesis and reject it.

Now,

$t_{critical} \text{ at 0.05 level of significance, 15 degree of freedom } = 1.753$

Since,

$t_{stat} > t_{critical}$

We fail to accept the null hypothesis and reject it. We accept the alternate hypothesis. We conclude that the residents of Wilmington, Delaware, have higher income than the national average

5 0

3 years ago

COMPETE Answer as a dec 2.8+7.22 DONE

Vadim26 [7]

Answer:

Hi, there my name is 1frogaroni and I will be helping you out today!

Step-by-step explanation:

The answer to your question is 10.02.

2.8+7.22

=2.8+7.22

=10.02

You must simplify. if this helped I would be happy to get brainliest in order for me to rank up.

Have a great day!

3 0

3 years ago

60% of Herbert's movies are adventure movies. He has 18 adventure movies. How many movies does Herbert have in all?

Vera_Pavlovna [14]

Data:
x (Number of movies) = ?

$\frac{60}{100} *x = 18$
$0,6x = 18$
$x = \frac{18}{0,6}$
$\boxed{x = 30}$

Answer:
Herbert have in all ?
30 movies

5 0

3 years ago