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larisa86 [58]
3 years ago
14

A train traveled 210 miles and 3.5 hours to its first stop. It then continued on traveling another 130 miles in 2.5 hours. 2hat

was the average speed of the train for the entire Journey
Mathematics
1 answer:
SpyIntel [72]3 years ago
6 0

Answer:

56.7 ​mi/h.

Step-by-step explanation:

I took the test

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Which expression is equivalent to 2x^2 +7x+4
rodikova [14]

Answer:

11x + 4

Step-by-step explanation:

First find 2 to the power of 2. Which is multiplying 2 by its self so 4x.

Then add the 4x to 7x which is 11x

Then since 4 doent have an x it cant be combined so thats the answer: 11x + 4

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3 years ago
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Whats992,449 rounded to the nearest hundred thousand
Andreas93 [3]
Yep, the answer is 1,000,000. To explain the process of how the answer is figured out, the 9 next to the 9 in the hundred thousand's place tells us that we need to round up. So, we'd be rounding up to 1,000,000. Hope this helped you understand it :)
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3 years ago
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Give the degree of the polynomial <br> -3w+x^6y^5-2+5y^4w^3x^2
Jlenok [28]

Answer:

Here the degree of the polynomial is 11.

Step-by-step explanation:

To find the degree of the multivariate polynomials, we need to add up the powers of all the variables.   So the total degree is given by the sum of all the powers of the highest powers terms.

Now in the given polynomial -3w+x^6y^5-2+5y^4w^3x^2

the term with the highest total powers is x^6y^5 and thus the total power is 6+5=11.

And hence the degree of this polynomial is 11.

5 0
3 years ago
Find an equation of the line described. Store the equation in slop-intercept form when possible.
Finger [1]

Answer:

Y = -5

Step-by-step explanation:

The line needs to be parallel to the y-axis, which means it forms a 90° angle with the y-axis. This means the line we are looking for is a straight horizontal line. The line must pass through the point (-7, -5), but we can disregard the x value since we figured out that the line is perfecly horizontal, so it has no x value. The answer we are left with is y = -5, which is a horizontal line across -5 on the y axis.

Hopefully you can understand my explanation :)

6 0
3 years ago
The area of the top face of a cube is 49cm^3. What is the volume of th cube?​
Vlad1618 [11]

Answer:

V=2401cm^{3}

Step-by-step explanation:

The fact that the figure is a cube means all sides, faces, and corners are equal.

V=BHW

V=49cm^{2}(W)

V=49cm^{2}(49cm)\\ V=2401cm^{3}

3 0
3 years ago
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