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Mars2501 [29]
3 years ago
8

9x + 3y = 4 7x + 3y = 20

Mathematics
1 answer:
xeze [42]3 years ago
5 0

Answer:

x=-8, y=76/3

Step-by-step explanation:

I solved for substitution since I didn't know exactly what you're solving for.

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A cone has a diameter of 12 and an inclination angle of 25. What is the height?
ANEK [815]
Check the picture below.

make sure your calculator is in Degree mode.

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3 years ago
What is the interest you will pay if you borrowed $900 at 10% interest for 2 years?
Kruka [31]

Answer:

$180

Step-by-step explanation:

900×.10=90 annually

90×2=180 for a 2 year loan

5 0
3 years ago
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Joseph chooses a book at random, looks at it,
Romashka [77]

Answer:

1/2

Step-by-step explanation:

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3 0
2 years ago
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The sum of two integers is 66. The larger is 12 less than five times the smaller. Find the two integers
VikaD [51]

Answer:

13 and 53

Step-by-step explanation:

First Integer: x

Larger integer: 5x-12

66=x+(5x-12)

66= x+5x-12

66=6x+12

78=6x

13=x

First Integer: 13

Larger Integer: 13*5-12= 65-12=53

Check Work:

13+53=66

4 0
2 years ago
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Which octant contains the image of point A( 1, -3, 4) after a reflection about the xz - plane?
ANTONII [103]

Hi,

Concept: The given problem is based on 3 Dimensional Geometry.

Consider three axes in defined space be x, y & z in their positive directions then - x , -y & -z be their negative axes.

The coordinate of given point A(x1, y1, z1) = (1, -3, 4)

If we take the reflection of point A about xz - plane x and z coordinates will remain same and y-coordinate will give its reflection. It means the value of y-coordinate will be changed which will be +ve 3.

Hence, the reflection of A(1, -3, 4) will be A'(x2, y2,z2= (1, 3, 4).

7 0
3 years ago
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