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Nookie1986 [14]
1 year ago
15

$84 increased by 12% Use the percent of change to find the mew amount

Mathematics
1 answer:
11111nata11111 [884]1 year ago
7 0
84 increased by 12% of 84 = (1)84 + (0.12)84, or (1.12)84 = $94.08
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The graph below shows the air temperature of a location (y), in degrees Celsius, after different time intervals (x), in hours: G
Arisa [49]

Answer:

it is decreasing in the time interval 0<x<2 hours.

Step-by-step explanation:

Graph of first line going through ordered pairs A(0, 40) and B(2, 10).

Graph of second line going through ordered pairs B(2, 10) and C(4, 10). Graph of third line going through ordered pairs C(4, 10) and D(7, 50).

When movement is from point A to B, change in x = 2 and change in y = -30

Hence change for unit x = -30/2 = -15 ... i

When movement is from point B to C, change in x = 2 and change in y = 0

Hence change for unit x = 0/2 = 0 ... ii

When movement is from point C to D, change in x = 3 and change in y = +40

Hence change for unit x = 40/7 = 5.71  .. iii

Hence from A to B it is decreasing, B to C it remains constant and C to D it is increasing.

x coordinate represents hours and y coordinate degrees.

Hence answer is it is decreasing in the time interval 0<x<2 hours.

8 0
1 year ago
Read 2 more answers
Shayna enlarged a square photo by adding 10 inches to each side so it could be seen on a large poster. The area of the enlarged
Over [174]
The area of a square is expressed as the length of the side to the power of two, A = s^2. We were given the area of the enlarged photo which is 256 in^2. Also, it was stated that the length of the enlarged photo is the length of the original photo plus ten inches. So, from these statements we can make an equation to solve for x which represents the length of the original photo.

A = s^2
where s = (x+10)
A = (x+10)^2 = 256
Solving for x,
x= 6 in.

The dimensions of the original photo is 6 x 6.
8 0
2 years ago
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Which of the following is a binomial experiment? Rolling a six-sided number cube 24 times and recording if a 4 comes up Rolling
Nana76 [90]
The second one you did is.
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2 years ago
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Jordan used the distributive property to write an expression that is equivalent to 6c – 48. 6c - 48 is equivalent to 6(c - 48) I
Katyanochek1 [597]
It’s incorrect.

The correct answer is 6(c - 8)
8 0
1 year ago
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The percent defective for parts produced by a manufacturing process is targeted at 4%. The process is monitored daily by taking
Anna [14]

Answer:

The 88% confidence interval for the proportion of defectives today is (0.053, 0.123)

Step-by-step explanation:

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}.

For this problem, we have that:

n = 160, \pi = \frac{14}{160} = 0.088

88% confidence level

So \alpha = 0.12, z is the value of Z that has a pvalue of 1 - \frac{0.12}{2} = 0.94, so Z = 1.555.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.088 - 1.555\sqrt{\frac{0.088*0.912}{160}} = 0.053

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.088 + 1.555\sqrt{\frac{0.088*0.912}{160}} = 0.123

The 88% confidence interval for the proportion of defectives today is (0.053, 0.123)

6 0
1 year ago
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