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3 years ago

To solve problems about spans of time that include B.C. and A.D. dates, you would need to use which numbers?

Mathematics

1 answer:

Studentka2010 [4]3 years ago

3 0

The correct numbers to use in solving problems about spans of time like B.C. and A.D. should be “integers”.

Integers are whole numbers (not a fractional number or not a decimal number) which can take a value of negative, zero, or positive number. Example of integers would be -1, 0 and 1.

<span>In calculations, the time period would be on the x-axis. Since B.C. and A.D. are two different spans of time, therefore in the calculations, the date of BC should be negative (negative x-axis) while the date of AD should be positive (positive x-axis). This would place the origin as the common reference.</span>

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Which expression is a sum of cubes?

Katen [24]

Since $\sqrt[3]{32}\not\in\mathbb Z$ , you can omit B and C as possible solutions.

Now,

$-64x^6y^{12}+125x^{16}y^3=(-4x^2y^4)^3+(5x^{16/3}y)^3$

but since 16 is not divisible by 3, A is not correct either.

So D is the answer. To verify:

$64x^6y^{12}+125x^9y^3=(4x^2y^4)^3+(5x^3y)^3$

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3 years ago

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Find the equation of the line that

sladkih [1.3K]

- - - -- - - - - - - - - - - - - - - -- - - - - -- - - - - - - -- - - - - - - -- - - - - --

$\blue{\textsf{\textbf{Question:-}}}$

What is the equation of the line parallel to y=-5x-9 and contains the point (-3, -3)?

$\blue{\textsf{\textbf{\underline{\underline{Answer and How to Solve:-}}}}$

First of all, parallel lines have the exact same slope.

So we know the slope of the line:- -5.

(enter -5, It's the number that belongs in the green box)

How about the y-intercept?

Well, since we're given the slope and a point that the line intersects, we can write the line's equation in point-slope form:-

y-y1=m(x-x1)

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y+3=-5(x+3)

y+3=-5x-15

y=-5x-18

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3 years ago

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At the fundraiser, there were only 3 prices for books: $2. $5 and $10. There were 6 more $5 books sold than $10 books. There wer

Setler79 [48]

Answer:

Step-by-step explanation:

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4 years ago

(Will give brainliest :) pls tell me how to solve) Hikers are traveling at 3 miles per hour. They leave camp and hike LaTeX: N64

AnnyKZ [126]

Answer:

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Step-by-step explanation:

The first thing you have to do is a graph where you signal the cardinal points (1st image)

Then draw the first line that the problem gives you (N64°W). At the end of this line, you will draw the following line (S23°W) drawing another little graph as a guide. Finally, you will draw the last line, as long as a triangle is made (2nd image)

If you pay attention to the first line you made, you will notice that you can make a right triangle with angles of 90°, 64°, and 26° (3rd image)

So, returning to the other big triangle, you are going to add the 23° of the main orientation with the 26° that you just obtained from the first triangle (4th image)

Now you have a large triangle with one side that is worth 4, another that is worth 2, and an angle between them that is worth 49° (5th image)

From now on it's easier.

We know that if we have an angle between two know sides we can use Law of cosines (a²=b²+c²-2bcCosA)

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a² = 9.50305554

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Hope I helped you and sorry for the bad quality of the photos

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