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Mashcka [7]
3 years ago
6

PLEASE HELP ASAP!! WILL GIVE BRAINLIEST!!

Mathematics
1 answer:
zhenek [66]3 years ago
7 0

Given is :

The area of the rectangular patio is = 130 square feet

Let the width of the patio be = x feet

As length is 3 feet more than the width, so the length is = x+3 feet

Now area of rectangle is = length * width

x(x+3)=130

x^{2}+3x=130

x^{2}+3x-130=0

x^{2}+13x-10x-130=0

x(x+13)-10(x+13)=0

(x-10)(x+13)=0

This gives either x-10=0 or x+13=0

x-10=0 ; x=10

x+13=0 ; x=-13 (neglect this negative value)

So, the width of the patio is = 10 feet

Length = 10+3 = 13 feet

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If the purchased television is 245.95 and you make 6 payments that total in
154.98 dollars, the down payment will be what is left.

40.25% = 0.4025 

245.95 x 0.4025 = 98.99 

98.99 dollars off the original price.

245.95 - 98.99 = 146.96

The down payment made the total come to 146.96. 
146.96 + 154.98 = 301.94

The total amount paid is 301.94 including charge and down payment.
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i thank it is B i hope that helped

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Prisms are polyhedra with two parallel, congruent ______ called bases.
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Prisms are polyhedra with two parallel, congruent (faces) called bases.
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The phenomenon of bottle flipping has hit the nation. You design a machine that can randomly flip a bottle. You observe 2180 ran
krek1111 [17]

Answer:

The variable of interest is the proportion of flips that land the correct way when flipped randomly.

The necessary conditions n\pi \geq 10 and n(1-\pi) \geq 10 are present.

The 98% confidence interval for the overall proportion of bottles that land correctly when flipped randomly is (0.131, 0.167).

Step-by-step explanation:

Variable of Interest:

Proportion of flips that land the correct way when flipped randomly.

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

Necessary conditions:

The necessary conditions are:

n\pi \geq 10

n(1-\pi) \geq 10

You observe 2180 random, independent flips, and 325 land the correct way.

This means that n = 2180, \pi = \frac{325}{2180} = 0.149

Necessary conditions

n\pi = 2180*0.149 = 325 \geq 10

n(1-\pi) = 2180*0.851 = 1855 \geq 10

The necessary conditions n\pi \geq 10 and n(1-\pi) \geq 10 are present.

98% confidence level

So \alpha = 0.02, z is the value of Z that has a pvalue of 1 - \frac{0.02}{2} = 0.99, so Z = 2.33.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.149 - 2.33\sqrt{\frac{0.149*0.851}{2180}} = 0.131

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.149 + 2.33\sqrt{\frac{0.149*0.851}{2180}} = 0.167

The 98% confidence interval for the overall proportion of bottles that land correctly when flipped randomly is (0.131, 0.167).

8 0
3 years ago
<img src="https://tex.z-dn.net/?f=15%20%5Ctimes%2018%20%2B%2012%20%5Cdiv%203%20%2B%209%20%3D%20" id="TexFormula1" title="15 \tim
fiasKO [112]
283



Start by doing multiplication and division from left to right to follow the order of operations.

270 + 12 / 3 + 9

270 + 4 + 9

Now do addition and subtraction from left to right.

274 + 9

283



Please consider marking this answer as Brainliest to help me advance.
4 0
3 years ago
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