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Wittaler [7]
3 years ago
7

Damian wrote the number nine and sixty-four thousandths as 9.64. Complete the

Mathematics
1 answer:
iogann1982 [59]3 years ago
5 0

Answer:

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︎I would like to know the answer too

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A research company claims that no more than 55% of Americans regularly watch FOX News. You decide to test this claim and ask a r
7nadin3 [17]

Answer: z(e) = 2.07

Step-by-step explanation:

1.-The problem is about a test of proportions. As research company claims than no more 55 % of Americans regularly watch Fox News

The null hypothesis is  H₀       P₀ ≤ 0.55       from 55%

And the alternative hypothesis is  Hₐ      Pₐ > .55

Is one tail test

2.-We have to specify significance level we assume our test will be for a significance level α = 5%  or α = 0,05

3.-Calculation of z (c) = ??  and z (e) = '??

For z (c) we find in z table the value of  z(c) = 1.64

For z (e) = ( P -P₀)/√p₀q₀/n     z(e) = 0.05 / √(0.55*0,45)/425                         z(e) = 0,05/ 0.02413    z(e) = 2.07

z(e) > z(c)  threfore z(e) is in the rejection zone . We reject null hyothesis

4 0
3 years ago
Jina is mailing packages. Each small package costs her to send. Each large package costs her . How much will it cost her to send
Novosadov [1.4K]
You need to tell me how many large and small packages she’s sending and how much each costs
8 0
3 years ago
12 of 1412 of 14 Questions Question 12 A cable is connected to the top of a building that is 20 feet high. The cable is attached
KIM [24]

Answer:

Step-by-step explanation:

2345i91 ksbfis this is the answer

3 0
3 years ago
Find all values of m so that the function y= e^mx is a solution of the given differential equation.
son4ous [18]

Answer:

m = - 2 is the value of m that the function y= e^mx is a solution of the differential equation, y' + 2y = 0.

Step-by-step explanation:

To determine all values of m so that the function y= e^mx is a solution of the given differential equation.

First, we will find y'.

From, y= e^mx

y = e^{mx}

But, y' = \frac{d}{dx}y

Hence,

y' = \frac{d}{dx}e^{mx}\\

∴ y' = me^{mx}

Now, we will put the values of y' and y into the given differential equation y' + 2y =0

From the question,

y = e^{mx}

and

y' = me^{mx}

Then, y' + 2y =0\\ becomes

me^{mx} + 2(e^{mx}) = 0

Then, me^{mx} = - 2(e^{mx}) \\\\

m = \frac{-2(e^{mx}) }{e^{mx} } \\

∴ m = -2

Hence, m = - 2 is the value of m that the function y= e^mx is a solution of the differential equation, y' + 2y = 0.

3 0
3 years ago
Please help me with my last question no wrong answers plsss
Andreas93 [3]

Answer:

(2/5, 9/5)

Step-by-step explanation:

To find the solutions, we are given the value of y in terms of x: y = 2x + 1. We can plug this into the circle equation to get:

(x - 1)^2 + (2x + 1 - 1)^2 = 1

Now, we can expand and simplify:

x^2 - 2x + 1 + (2x)^2 = 1

x^2 - 2x + 1 + 4x^2 = 1

5x^2 - 2x = 0

Now, we can factor:

x(5x - 2) = 0

And, using the zero product property, we get two equations which we can solve:

x = 0

5x - 2 = 0

5x = 2

x = 2/5

Since x is 0 in the first solution, we use the other solution and plug it into the equation y = 2x + 1 to find y:

y = 2(2/5) + 1

y = 4/5 + 1

y = 9/5

This means the coordinates of the point is (2/5, 9/5)

4 0
3 years ago
Read 2 more answers
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