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worty [1.4K]
3 years ago
5

What is the greatest common factor of 90,54 and 130?

Mathematics
1 answer:
Vaselesa [24]3 years ago
3 0
The answer is two. haha 
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A. 1189<br> B. 28<br> C. 784<br> D. 891<br> E. 1059
ch4aika [34]

Answer:

Its E c;

Step-by-step explanation:

5 0
3 years ago
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Prove that the diagonals of a rhombus are perpendicular using coordinate geometry
lozanna [386]

If we draw a rhombus OABC on a coordinate grid with one vertex at the point O (0,0)

and let its height be 1 then (using the Pythagoras theorem) the coordinates of the 4 points will be as follows:-

O = (0,0) , A = (1, 1), B = (sqrt2+ 1 , 1) , C = (sqrt2, 0)

Slope of the diagonal OB = 1 / (sqrt2 + 1)

Slope of the other diagonal AC = - 1 / (sqrt2 - 1)

Product of the slopes = - 1 / ( sqrt2 + 1)(sqrt2 - 1) = -1 / 1 = -1

This proves that the diagonals are perpendicular.

5 0
3 years ago
Need help with this im confused
Jet001 [13]

Answer:

-\frac34 -\frac14 i

Step-by-step explanation:

Let's start with distributing: \frac1{4i}-\frac{3i}{4i} Simplify i with i in the second term, and rearrange.-\frac34 +\frac1{4i}. Since i in the denominator looks ugly, let's multiply top and bottom by i. -\frac34 +\frac i{4i^2} = -\frac34 +\frac i{4(-1)} =-\frac34 -\frac14 i. The middle passage is based on the fact that, by definition, i^2=-1

6 0
3 years ago
Raffle tickets are being sold for a fundraiser. The function a(n) relates the
Vlada [557]

Answer:

If the function is

A(n) = 4n -25

and we wish to get the inverse function N(a)

We let

A(n) = a

n = N(a)

Plugging in the values

a = 4 N(a) - 25

Arranging the equation:

4 N(a) = a + 25

N(a) = (a + 25) /4

The answer is

N(a) = (a + 25) /4

Step-by-step explanation:

8 0
3 years ago
Missy is 1.5 meters tall and cast a 9-meter shadow. How long is the shadow of a 6-meter flagpole beside.
PIT_PIT [208]

Answer:

36 meters

Step-by-step explanation:

9 divided by 3 is 3

That means for every 1 meters is 6 meters shadow wise because 3 meters equal to .5 meters.

6 meters of the pole times 6 meters per one real meter equals 36 shadow meters.

Hope that helped, if it did please give me the brainliest.

6 0
3 years ago
Read 2 more answers
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