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Bond [772]
3 years ago
10

There is a supplementary angle with a ratio of 3:7. What is the measure of the larger angle?

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

Answer:

The measure of the bigger angle is 126 degrees

Step-by-step explanation:

When two angles are supplementary, the sum of the angles is 180

In the given ratio, the bigger angle is the one with 7

Thus;

7/(3 + 7) * 180 is the measure of the bigger angle

So;

7/10 * 180

= 7 * 18 = 126 degrees

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4 divided by 5 long division <br> I need help on this please
raketka [301]

1 with a remainder of 1

4 0
3 years ago
Find the inverse of the following matrix without using a calculator 1-1 2 -3 2 1 0 4 - 25
Artist 52 [7]

Answer:

18  -(17/3)   (5/3)

25  (25/3)  (7/3)

4    (4/3)     (1/3)

Step-by-step explanation:

You can solve this problem by using the Gauss-Jordan method.

You have the original matrix and then the Identity matrix.

So:

Original              Identity

1 -1 2                    1 0 0

-3 2 1                   0 1 0

0 4 -25                0 0 1

By the Gauss-Jordan method, in the original place you will have the identity and in the place that the identity currently is you will have the inverse matrix:

So, let's start by setting the first row element to 0 in the second and the third line.

The first row element of the third line is already at zero, so no changes there. In the second line, we need to do:

L2 = L2 + 3L1

So now we have the following matrixes.

1 -1 2        |            1 0 0

0 -1 7       |            3 1 0        

0  4 -25   |            0 0 1

Now we need the element in the second line, second row to be 1. So we do:

L2 = -L2

1 -1 2        |            1 0 0

0 1 -7       |            -3 -1 0        

0  4 -25   |            0 0 1

Now, in the second row, we need to make the elements at the first and third line being zero. So, we have the following operations:

L1 = L1 + L2

L3 = L3 - 4L2

Now our matrixes are:

1 0 -5       |            -2 -1 0

0 1 -7       |            -3 -1 0        

0 0 3       |            12 4 1

Now we need the element in the third line, third row being one. So we do:

L3 = -L3

1 0 -5       |            -2  -1     0

0 1 -7       |            -3  -1      0        

0 0 1       |            4    (4/3) (1/3)

Now, in the third row, we need the elements in the first and second line being zero. So we do:

L1 = L1 + 5L3

L2 = L2 + 7L3

So we have:

1 0 0 |       18  -(17/3)   (5/3)

0 1 0 |       25  (25/3)  (7/3)

0 0 1 |       4    (4/3)     (1/3)

So the inverse matrix is:

18  -(17/3)   (5/3)

25  (25/3)  (7/3)

4    (4/3)     (1/3)

4 0
3 years ago
Find f(2) if f(x) = 3x3 - 12x2
marissa [1.9K]
F(2) is same thing as saying x =2
So just plug in 2 for x and solve for x

3*(2)^3 - 12*(2)^2 =

3*8 - 12*4 =
24-48 =
-24

D
8 0
2 years ago
Write four numbers that could be ordered between these numbers 59 through 1,000
Blababa [14]
100, 200, 300, and 400.
7 0
3 years ago
Read 2 more answers
2.5 hours travelled and 187 distance traveled in miles ( I have to find the unit rate)
Elena L [17]

Answer:

The first one is 75 and the second one is 81

Step-by-step explanation:

put 187.5 into calculator then divide it by the bottom number/denominator in this case 2.5 and then you get 75

put 303.75 into calculator then divide it by the denominator or 3.75 and you get an answer of 81

so 81 miles per hour

I really hope this helps!

8 0
3 years ago
Read 2 more answers
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