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Georgia [21]
2 years ago
7

The sum of two numbers is 23. The difference of the numbers is 7.4. What are the two numbers?​

Mathematics
1 answer:
Brums [2.3K]2 years ago
5 0
X+y=23
X-y=7.4

X+y=23
y=23-X

X-y=7.4
(23-y)-y=7.4
23-2y=7.4
-2y=-15.6
Y=7.8

X+y=23
X+7.8=23
X=15.2

Therefore the two numbers are 7.8 & 15.2

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Answer:  Choice C.  x \ge -3

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Explanation:

The domain is the set of all allowed x inputs.

Here we see that x = -3 is the smallest x value possible as it is from the left-most point. The graph goes on forever to the right, so there is no largest x value. Effectively infinity is the largest x value even though infinity is not a number.

We can say the domain is -3 \le x < \infty which can be simplified to -3 \le x or x \ge -3

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8 0
3 years ago
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tensa zangetsu [6.8K]
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6 0
3 years ago
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stira [4]

Answer:

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7 0
3 years ago
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Step-by-step explanation:

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The answer is 0

5 0
3 years ago
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