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3 years ago

What is the answer for the equation 2-(4x)=0

Mathematics

1 answer:

guajiro [1.7K]3 years ago

4 0

Solve for x by simplifying both sides of the equation, then isolating the variable.
x = 1/2

Hope this helps! :)

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A market research analyst claims that 32% of the people who visit the mall actually make a purchase. You think that less than 32

Rainbow [258]

Answer:

E. -1.48

Step-by-step explanation:

The test statistic is:

$t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

In which X is the sample mean, $\mu$ is the expected value, $\sigma$ is the standard deviation and n is the size of the sample.

A market research analyst claims that 32% of the people who visit the mall actually make a purchase.

This means that:

$\mu = 0.32$

$\sigma = \sqrt{0.32*0.68} = 0.4665$

You stand by the exit door of the mall starting at noon and ask 82 people as they are leaving whether they bought anything. You find that only 20 people made a purchase.

This means that $n = 82, X = \frac{20}{82} = 0.2439$

The value of the test statistic is about:

$t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

$t = \frac{0.2439 - 0.32}{\frac{0.4665}{\sqrt{82}}}$

$t = -1.48$

So the correct answer is given by option E.

3 0

3 years ago

Speed test cost $5 each and large one-topping pizzas cost $6 each write an equation that represents the total cost t of c large

yKpoI14uk [10]

Answer:

Equation t = 5c + 6d represents total cost t of c large pizzas and d large one-topping pizzas

Solution:

Given that

Cost of large pizza = $5 each

Cost of large one-topping pizza = $6 each

Need to write the equation that represents total cost t of c large pizzas and d large one topping pizzas.

From given information

Cost of 1 large pizza = 5

So cost of c large pizzas = c x 5 = 5c

Cost of 1 large one-topping pizza = 6

So cost of d large one-topping pizzas =d x 6 = 6d

Total cost t = cost of c large pizzas + cost of d large one-topping pizzas

=> t = 5c + 6d

Hence equation t = 5c + 6d represents total cost t of c large pizzas and d large one-topping pizzas.

3 0

3 years ago

What is the slope of a line perpendicular to ta line whose equation is y = -3/4x - 6

svp [43]

Answer:

4/3

Step-by-step explanation:

y = -3/4x - 6

m = -3/4

Slope of the line perpendicular to this line = -1/m

= -1 ÷ (-3/4)

$= (-1)*\frac{4}{-3}\\\\=\frac{4}{3}$

6 0

3 years ago

Need Answer to these questions. pls help

vredina [299]

Answer:

7.2 million dollars

Step-by-step explanation:

The domain of the function the complete set of possible values of the independent variable. In this case the domain includes all real numbers except 189.

From;

T(p) = 0.50 (p - 189)

When p = 203.4 million dollars

T(p) = 0.50 (203.4 - 189)

T(p) = 7.2 million dollars

8 0

2 years ago

Solve 2 log x = log 64. (1 point)

Vladimir79 [104]

Answer:

Step-by-step explanation:

2log(x)=log(64)

By logarithms properties

$xlog_{a}(b)=log_{a}(b^{x} ) \\$

log(x²)=log(64)

When you have log or ln in both sites, you delete them and...

x²=64

$\sqrt[]{x^{2} } =\sqrt{64} \\x=8$

7 0

3 years ago