Helloo I need help with this

Mathematics

1 answer:

anastassius [24]3 years ago

3 0

Answer:

Options A and C

Step-by-step explanation:

Area of the triangular pane = $\frac{1}{2}(\text{Base})(\text{Height})$

= $\frac{1}{2}(14)(12)$

= 84 cm²

Area of the rectangle is given by the formula,

Area = Length × width

Option A.

Area of the rectangular pane = 12 × 7

= 84 cm²

Option B.

Area of the rectangular pane = 15 × 7

= 105 cm²

Option C.

Area of the rectangular pane = 21 × 4

= 84 cm²

Option D.

Area of the rectangular pane = 21 × 8

= 168 cm²

Option E.

Area of the rectangular pane = 28 × 6

= 168 cm²

Therefore, rectangular panes A and C have the equal area as the triangular pane has.

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C = 3b+2d is the same as 3b+2d = C

Let's isolate d. To do this, we first need to subtract 3b from both sides

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Then divide both sides by 2

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Take note of the parenthesis as they are very important. We want to divide ALL of C-3b over 2. We don't want to just divide -3b over 2.

The answer choices you have aren't 100% clear but I have a feeling your teacher meant to say d = (C-3b)/2 instead of d = C-3b/2 for choice A

If that assumption is correct, then the answer is choice A.

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3 years ago

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