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saveliy_v [14]
2 years ago
13

Given that D(x) = 2x, select all of the following that are true statements.

Mathematics
1 answer:
GaryK [48]2 years ago
8 0
It is D
You welcome
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$ The sum of twe numbers is 42. Their difference is 16.​
tresset_1 [31]

Answer:

x = 29

y = 13

Step-by-step explanation:

Write 2 equations:

x + y = 42

x - y = 16

Isolate x in the first equation:

x = 42 - y

Substitute this in for x in the second equation:

42 - y - y = 16

42 - 2y = 16

solve for y:

-2y = -26

y = 13

Plug in 13 for y in either equation:

x + 13 = 42

Solve for x:

x = 29

3 0
3 years ago
Should be fairly easy..
Harlamova29_29 [7]

Answer:

<u>72 cm²</u>

Step-by-step explanation:

Area of a ∆ = 1/2 × b × h

b = 12 cm

h = 12 cm

Area = 1/2 × 12 × 12

= 1/2 × 144

= <u>72 cm²</u>

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3 years ago
Fracions closer to 1 than 0
ruslelena [56]
1 1/3, 1 1/4, 1 1/5 .....

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3 years ago
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Which pair of points has a negative slope?
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A.) (-3, 17), (2, -8)
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Which has a value closest to 9?
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Answer:

10

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