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ozzi
3 years ago
13

Use parentheses to make each number sentence true 1+2×3+4=21​

Mathematics
1 answer:
Nastasia [14]3 years ago
6 0
(1+2)(3+4)
1+2=3
3+4=7
7•3=21
There is an invisible multiplication sign between the two parentheses :).
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3 years ago
Suppose a triangle has sides a, b, and c, and the angle opposite the side of length b is obtuse. What must be true?
anyanavicka [17]

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Step-by-step explanation:

In the given figure, we have an obtuse triangle which has sides a, b, and c, and the angle opposite the side of length b is obtuse.

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Thus, the largest side in then given obtuse triangle= c

The Pythagorean inequalities theorem says that If a triangle is obtuse than the square of the largest side is greater than the sum of square of other two sides.

Therefore, we have

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5 0
3 years ago
Which answer best describes how to solve this story problem? Mark bought 5 bags of red apples with 6 apples in each bag. He boug
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5 0
3 years ago
pamela claims that if you multiply a fraction that is negative by another fraction that is negative, the product will also be ne
svetoff [14.1K]
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5 0
3 years ago
To determine the number of trout in a​ lake, a conservationist catches 180 ​trout, tags them and throws them back into the lake.
GaryK [48]
The ratio of the trout with tags that are caught and the total trout with tags is first calculated.

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Then, we divide the number of trouts caught without tag by the value obtained above.

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Then, we add the number obtained above and 180.
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ANSWER: 720
3 0
3 years ago
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