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Nata [24]
3 years ago
14

Write a ratio that is equivalent to 3:5, other than 3:5 itself

Mathematics
1 answer:
natulia [17]3 years ago
7 0

Answer:

9:15

Step-by-step explanation:

\frac{3*3}{5*3}=\frac{9}{15}=9:15

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Help me please I dont understand
mojhsa [17]

The model shows that we are to arrange the factors based on the terms in the square box. The factored form is(6x+5)(x-4)

<h3>Factorizing quadratic equations</h3>

Factorization is a way of simplify. Given the equation 6x² - 19x - 20

Factorize

6x² - 19x - 20

6x² - 24x + 5x- 20

6x(x-4)+5(x-4)

(6x+5)(x-4)

We are to arrange each term of the factors in the square box

Learn more on factoring here: brainly.com/question/24734894

#SPJ1

5 0
2 years ago
In the diagram, the length of segment TQ is 40 units.
allsm [11]

Answer:

The answer is 44.

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
An environmental scientist wants to use a 95% confidence interval to estimate the mean number of hours per day her solar panel r
MissTica

Answer:

a) The 95% confidence interval for the mean number of hours per day her solar panel receives direct sunlight is between 2.5 and 11.7.

b) The confidence interval is built from a sample of 48 days. However, we can be 95% sure that for all days, the mean number of hours per day her solar panel receives direct sunlight is between 2.5 and 11.7.

Step-by-step explanation:

We have the standard deviation for the sample. So we use the t-distribution to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 48 - 1 = 47

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 47 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.95}{2} = 0.975. So we have T = 2.0117

The margin of error is:

M = T*s = 2.0117*2.3 = 4.6

In which s is the standard deviation of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 7.1 - 4.6 = 2.5 hours of sunlight per day

The upper end of the interval is the sample mean added to M. So it is 7.1 + 4.6 = 11.7 hours of sunlight per day

a) Compute the 95% confidence interval for the mean.

The 95% confidence interval for the mean number of hours per day her solar panel receives direct sunlight is between 2.5 and 11.7.

b) Explain your confidence interval from part (a) in context.

The confidence interval is built from a sample of 48 days. However, we can be 95% sure that for all days, the mean number of hours per day her solar panel receives direct sunlight is between 2.5 and 11.7.

6 0
3 years ago
How long will it take a person to walk from Toronto to
storchak [24]

Answer:

About 947 hours, walking at 5 km (3 miles)/hour.

Walking 8 hours /day [at that pace you would need to be an Olympic Athlete to keep up the pace] it will take about four months.

Walk slower, it will take longer.

4 0
2 years ago
What is the absolute value of |1-|
stich3 [128]

Answer:

1

Step-by-step explanation:

absolute values are always positive, so the absolute value of -1 is 1

always going to be positive

3 0
2 years ago
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