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Yuri [45]
3 years ago
11

A student provided the steps for solving an equation. Which statement describes the error in the solution?

Mathematics
1 answer:
Stella [2.4K]3 years ago
4 0
Answer: A.

They did not distribute the 3 to the 4 and -5a correctly.
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Which congruence theorem can be used to prove △ABC ≅ △DBC?
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Answer:

SAS

Step-by-step explanation:

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3 years ago
What is the radius of a circle with an area of 78.5 cubic inches? Use 3.14 for pi. Enter your answer in the box.
Korvikt [17]

Answer:

r =5 in

Step-by-step explanation:

Area of a circle is given by

A = pi r^2

We know the area and pi

78.5 = 3.14 r^2

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78.5/3.14 = 3.14 /3.14 r^2

25 = r^2

Take the square root of each side

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4 0
3 years ago
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bagirrra123 [75]
<h3>2 Answers: Angle 4 and angle 2</h3>

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Explanation:

Supplementary angles add to 180 degrees. Visually, supplementary angles can be glued together to form a straight angle or a straight line.

We see that happens with angles 1 and 4, and this also happens with angles 1 and 2. This is why these two angles make up the answer.

--------------

The other answer choices can be ruled out.

Angles 1 and 9 would be congruent if we knew the shallow sloping lines were parallel. The only time angles 1 and 9 are supplementary is if both are 90 degrees. In any other case, they are not supplementary angles.

Angles 1 and 12 are same side exterior angles. They would be supplementary if the shallow sloping lines were parallel. However, if you extend out each line, you'll see that they eventually intersect. Parallel lines never intersect.

7 0
3 years ago
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Hunter-Best [27]

Answer:

The answer would be letter D. Valuable.

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Answer:

-4x^{2}y ∛3y

Step-by-step explanation:

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