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3 years ago

Write the following using algebraic notation, using the letter x for any

Mathematics

2 answers:

vekshin13 years ago

7 0

Answer:

x+1=x *x

Step-by-step explanation:

Trava [24]3 years ago

7 0

Answer:

x+1= x*x

Step-by-step explanation:

hope this helps

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The estimated distance is 60 miles, but the actual distance is 75 miles. Find the percent error.

steposvetlana [31]

Answer:

Step-by-step explanation:

75-60=15

15÷75=.20

20 per cent error

7 0

3 years ago

A hypothesis will be used to test that a population mean equals 10 against the alternative that the population mean is more than

PilotLPTM [1.2K]

Answer:

A) 2.58

B) 1.96

C) 1.65

Step-by-step explanation:

A hypothesis used to test that

$H_o : \mu = 10$

against the alternatives $H1 : \mu$ not equal to 10

if null hypothesis is true, then distribution of test statics follow

$Zo = \frac{\bar x - \mu}{\frac{\sigma}{\sqrt{n}}}$

for two sided alternatives hypothesis $( H1: \mu \neq 7)$ , then P value is

$P = 2[1- \phi(\left | Zc \right |)]$ (1)

a)significance level $\alpha = 0.01$

from 1 eq we get

$\pi (\left | Zc \right |) = P(Zo$

Therefore $\left | Zc \right | = 2.58$ FROM Z TABLE

B) significance level $\alpha = 0.05$

from 1st equation we get

$\pi (\left | Zc \right |) = P(Zo < \left | Zc \right |) = 1 - \frac{0.05}{2} = 0.975$

Therefore $\left | Zc \right | = 1.96$ FROM Z TABLE

C) significance level $\alpha = 0.10$

from 1 eq we get

$\pi (\left | Zc \right |) = P(Zo$

Therefore $\left | Zc \right | = 1.65$ FROM Z TABLE

3 0

4 years ago

What describes an equation that has a solution set of "all real numbers"

inysia [295]

Answer:

Any value you choose for x will make the equation a TRUE statement. This type of equation is called an identity, and the solution set is all real numbers.

4 0

3 years ago

Read 2 more answers

A spinner is divided into 1 to 12. what are the odds that it will land on one digit prime number.

Molodets [167]

5/12 are the odds. You could also refer to it as unlikely. These numbers are:

1
2
3
5
7

8 0

3 years ago

Calculate The Constant of Proportionality (k) and Write an Equation for the line in the Graph Below:

S_A_V [24]

Answer:

k = ½

Equation => $y = \frac{1}{2}x$

Step-by-step explanation:

Constant of proportionality (k) = y/x

Using a point on the graph, (6, 3),

k = y/x = 3/6 = ½

k = ½

Equation of the line:

Plug in the value of k into $y = kx$ (slope-intercept form of equation for proportional relationship)

Thus:

$y = \frac{1}{2}x$

7 0

3 years ago