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3 years ago

Plz help me answer right away ASAP!!!

Mathematics

1 answer:

Illusion [34]3 years ago

5 0

First you take 15 and divide it by 5. That leaves you with 3. You also need to decide the x’s so you subtract the exponents (2-3=-1)

so you now have (y^10z^7)/(y^4z^10)3x^-1

Next we will divide the y’s.

Again, subtract the exponents (10-4=6) to get y^6

Now we have (3x^-1)(y^6) (z^7/z^10)

Last is z, we subtract the exponents again (7-10=-3) and get z^-3

Our answer is (3x^-1)(y^6)(z^-3)

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What are three ratios that are equivalent to 15:38

MatroZZZ [7]

equivalent ratio's to 15:38

15 x 2 = 30
38 x 2 = 76

30:76 is equivalent to 15:38

15:38 x 3

15 x 3 = 45
38 x 3 = 114

45:114 is equivalent to 15:38

15:38 x 4

15 x 4 = 60
38 x 4 = 152

60:152 is equivalent to 15:38

3 0

3 years ago

Read 2 more answers

What is the opposite of 8.4

qaws [65]

Answer:

-8.4

Step-by-step explanation:

Because if you want to find the opposite of a number then you find that same number on the other side on the number line for example, -4.5 you would go on the other side and you would get positive 4.5

8 0

3 years ago

Read 2 more answers

Which equation describes the line with slope 4 that contains the point (7, 2) ?

Anestetic [448]

Answer:

y-2=4(x-7)

See the picture below to see my calculator results!

I hope this helps!!

3 0

3 years ago

Geometry :))), please help me

amm1812

Answer:

x = -5

Step-by-step explanation:

Since these two triangles are similar, the ratio between the corresponding lengths of each triangle will be the same.

This means the ratio between one side of each triangle (e.g. AD and DC) will be the same as the ratio between a different side of each triangle (e.g. BE and BC).

So, to create an equation for the sides which contain the unknown 'x', we must first find the ratio between the two sides by using a different set of sides.

On the right side we are given 9 for AD, and 18 for DC.

9/18 = 0.5

This means that the extra length of the larger triangle from the smaller one (AD) is half the length of the smaller triangle (DC). We can use this to make an equation for x:

If AD/DC = 0.5, then BE/EC will also = 0.5

BE = x+23

EC = x+41

Therefore:

$\frac{x+23}{x+41} = 0.5$

Now we can solve by multiplying both sides by x+41 to eliminate the fraction:

$x+23=0.5(x+41)$

Now we multiply out the brackets and move the terms to different sides:

$x+23=0.5x+20.5$

$0.5x = -2.5$

$x = -5$

And if we substitute the -5 into the equations:

-5+23 = 18

-5 + 41 = 36

We will see that -5 does indeed give us the same ratio between the lengths:

18/36 = 0.5

Hope this helped!

4 0

3 years ago

directions:decide if each of the following numbers are in scientific notation or not. if it's not explain why.

serg [7]

I think that they all are because scientific notation is where if a number is too big to write down somebody will just wright it to the power of what the number is equal to.

5 0

4 years ago