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JulsSmile [24]
3 years ago
6

(3x2 + 5x + 7) - (-4x2 + 3x - 6

Mathematics
1 answer:
ELEN [110]3 years ago
7 0

Answer:

7x2 + 2x + 13

Step-by-step explanation:

tiger algebra was used

https://www.tiger-algebra.com/drill/(3x2_5x_7)-(-4x2_3x-6)/

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A taxi charges $3, plus $1.50 for each mile traveled. Mr.Lewis rode in the taxi from his home to the airport and was charged $30
chubhunter [2.5K]

Answer: 18 milles

Step-by-step explanation: ince we have to figure out how many miles away Mr. Hill lives, first we will subtract:

30 - 3 = 27

Then, divide

27 ÷ 1.50 = 18

So, Mr. Hill lives 18 miles away

3 0
4 years ago
Read 2 more answers
Suppose researchers test 100 college students, whose ages range from 18 to 23. They also test 100 people at a nearby community c
prisoha [69]

Answer:

b. You would conclude that the differences in the average scores can be traced to differences in the working memory of the two groups.

Step-by-step explanation:

Though the average scores of the two sets could have lead to various conditions, but retentive ability deminishes with respect to an increase in age. With respect to the age of the elderly people involved, it is expected that some of them would not be able to retain information for a long period of time. Thus, their average score is 72%.

The college students' are younger, so it is expected that they should be able to retain more information. That ability is one of the reasons why their average score is 85%.

It can be concluded from the research that the differences in the average scores is probably due to the working memory of the two groups.

6 0
3 years ago
What is the volume of the square pyramid ?
Oxana [17]

Answer:

Step-by-step explanation:

The answer is 4230

7 0
3 years ago
Select the correct answer.
svetoff [14.1K]

In the construction of the equilateral triangle EFG inscribed in a circle, Chase can find points F and G as D. Points F and G are points of intersection of two congruent circles centered at D and E.

<h3>What is an equilateral triangle?</h3>

It should be noted that an equilateral triangle simply means a triangle that has all the sides and angles to be equal.

After drawing the diameter of the circle through the center, it's important to open the compass to a width that's equivalent to the radius the circle.

In this case, it can be deduced that Points F and G are points of intersection of two congruent circles centered at D and E.

Learn more about triangles on:

brainly.com/question/17335144

6 0
2 years ago
What is the equation of the line with an x-intercept of -1 and a y-intercept of 2? y = 2x - 2 y = - 2x 2 y = 2x 2
guajiro [1.7K]
X intercept = -1,  y = 0           (-1, 0)

<span>y intercept = 2,  x = 0           (0, 2)
</span>
slope between (-1, 0) and (0, 2):

slope = (2 -0)/(0 - -1) =  2/1 = 2,           m = 2

Using point   (-1, 0)   x₁ = -1, y₁ = 0

y - y₁ = m(x - x₁)

y - 0 = 2*(x - -1)

y = 2(x + 1)

y = 2x + 2
6 0
4 years ago
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