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USPshnik [31]
3 years ago
14

On Monday the temperature was -12 degrees. On Tuesday the temperature increased by 5 degrees. On Wednesday the temperature decre

ased by 2 degrees. On Thursday the temperature decreased by 10 degrees. What was the temperature at the end of the day?
Mathematics
1 answer:
Leto [7]3 years ago
7 0

Answer:

-19

Step-by-step explanation:

so i am not sure but maybe someone else will confirm it

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Valentin [98]
Answer is parallel lines
Reason - same slope (3x) and different y intercept means they will be parallel lines because their slope is the same but they will cross the y axis at different points.

I changed the first equation to y intercept form
y = 3x - 10 to match the other equation
y = 3x - 6
3 0
1 year ago
Which of the following rational functions is graphed below?
Lady_Fox [76]

Answer:

B. f\left(x\right)=\frac{x}{\left(x+4\right)\left(x-1\right)}

Step-by-step explanation:

I graphed this function on the graph below and it matched the graph you have.

5 0
3 years ago
The angles of elevation to an airplane from two points A and B on level ground are 58° and 76°, respectively. The points A and B
statuscvo [17]

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90

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6 0
2 years ago
Intellectual development (Perry) scores were determined for 21 students in a first-year, project-based design course. (Recall th
Anit [1.1K]

Answer:

The 99% confidence interval is (3.0493, 3.4907).

We are 99% sure that the true mean of the students Perry score is in the above interval.

Step-by-step explanation:

Our sample size is 21.

The first step to solve this problem is finding our degrees of freedom, that is, the sample size subtracted by 1. So

df = 21-1 = 20.

Then, we need to subtract one by the confidence level \alpha and divide by 2. So:

\frac{1-0.99}{2} = \frac{0.01}{2} = 0.005

Now, we need our answers from both steps above to find a value T in the t-distribution table. So, with 20 and 0.005 in the two-sided t-distribution table, we have T = 2.528

Now, we find the standard deviation of the sample. This is the division of the standard deviation by the square root of the sample size. So

s = \frac{0.40}{\sqrt{21}} = 0.0873

Now, we multiply T and s

M = 2.528*0.0873 = 0.2207

Then

The lower end of the interval is the mean subtracted by M. So:

L = 3.27 - 0.2207 = 3.0493

The upper end of the interval is the mean added to M. So:

LCL = 3.27 + 0.2207 = 3.4907

The 99% confidence interval is (3.0493, 3.4907).

Interpretation:

We are 99% sure that the true mean of the students Perry score is in the above interval.

7 0
3 years ago
Will give u brainliest if i get it write hurry!!!
Liono4ka [1.6K]

Answer:

c trust me

and well i just did that 20 mins ago

6 0
3 years ago
Read 2 more answers
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