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3 years ago

The product of 9 and t squared, increased by the sum of the square of t and 2

Mathematics

1 answer:

Paha777 [63]3 years ago

7 0

Answer:

9t^2+(t+2)^2

Step-by-Step:

t is 9 X t, or the product of 9 and t. ^2 is squared while + is increased t+2 is the sum of t and t. the ^2 after the parenthesis is indicating the "square of t and 2"

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After driving 152 km, 4/5 of a trip is completed. How long is the total trip? How many more kilometers must be driven to compl

nikitadnepr [17]

Answer:

1. Total Trip Distance = 190 kilometers

2. To complete the trip, 38 more kilometers left

Step-by-step explanation:

Let total trip be x kilometers.

So we can say

"152 is $\frac{4}{5}$ of total" --- this into equation is:

$152=\frac{4}{5}x\\x=\frac{152}{\frac{4}{5}}\\x=190$

Total trip is 190 km.

Since already driven 152, to complete 190, you have to drive $190-152=38$ kilometers more.

So, 38 more kilometers to complete the trip.

7 0

3 years ago

Read 2 more answers

Determine whether the data set is a population or a sample. Explain your reasoning. The salary of each teacher in a school. Choo

SVETLANKA909090 [29]

Answer:

D. Population, because it is a collection of salaries for all teachers in the school.

Step-by-step explanation:

In research, population refers to a complete set of subjects that share a characteristic and that the researcher is interested in. On the other hand, a sample is a subset of a population and it's usually the one the researcher takes to make a study with.

In this example, we have "The salary of each teacher in a school" since we are taking ALL the teachers of this school, this would be a population. If we were working with the salary of only a portion of the teachers of said school, it would be a sample.

Thus, the right answer is D. Population, because it is a collection of salaries for all teachers in the school.

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3 years ago

The scatter plot shows a correlation between the years and the rainfall in centimeters in Tennessee.

nataly862011 [7]

Answer:

Step-by-step explanation:

The actual values are shown on the given graph as blue points.

The line of regression is shown on the given graph as the red line.

From inspection of the graph, in the year 2000 the actual rainfall was 43 cm, shown by point (2000, 43). It appears that the regression line is at y = 50 when x is the year 2000.

⇒ Difference = 50 - 43 = 7 cm

In 2000, the actual rainfall was 7 centimeters below what the model predicts.

From inspection of the graph, in the year 2003 the actual rainfall was 44 cm, shown by point (2003, 40). It appears that the regression line is at y = 40 when x is the year 2003.

⇒ Difference = 44 - 40 = 4 cm

In 2003, the actual rainfall was 4 centimeters above what the model predicts.

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2 years ago

Find the tenth term in the sequence. First, I need the sequence generator. Then, I want an equation. (Should be T(N) = MN + B if

anyanavicka [17]

Answer:

These numbers are the Powers of Two

Beginning with term #1 = 2, the next term is always 2 times the PRECEDING term.

Second term is two squared, or 2 times 2, namely four.

Third term, multiply that four by two, giving eight, also known as two cubed.

Fourth term is twice as much, namely sixteen.

Just keep on doubling!

Step-by-step explanation:

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3 years ago

A rug has an area of 122. 12 ft.² the rug is 8.7 feet wide to the nearest hundredth how many feet long is the rug

daser333 [38]

Let x be the length of the rug
Area = length x width
122.12 = (x)(8.7)
x = 122.12/8.7
= 14.04 feet

5 0

4 years ago