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2 years ago

800m or 799,999mm which is greater

Mathematics

2 answers:

erik [133]2 years ago

7 0

800m is the answer, I thought they were both m's

Mariulka [41]2 years ago

4 0

800m is greater than 799,999mm

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3 years ago

How do you write 16% as a decimal

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Answer

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2 years ago

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1 year ago

Prove that DJKL~ DJMN using SAS Similarity Theorem. Plot the points J (1,1), K(2,3), L(4,1) and J (1,1), M(3,5), N(7,1). Draw DJ

dolphi86 [110]

Answer and Step-by-step explanation: The triangles are plotted and shown in the attachment.

SAS Similarity Theorem is by definition: if two sides in one triangle are proportional to two sides of another triangle and the angles formed by those sides in each triangle is congruent, the triangles are similar.

For the triangles on the grid, we know that ΔJKL and ΔJMN have a congruent angle in J as shown in the image. To prove they are similar, we find the slope of sides KL and MN:

Slope of KL:

slope = $\frac{y_{K} - y_{L} }{x_{K} - x_{L} }$

slope = $\frac{3-1}{2-4}$

slope = -1

Slope of MN:

slope = $\frac{y_{N} - y_{M} }{x_{N} - x_{M} }$

slope = $\frac{1-5}{7-3}$

slope = -1

Since the slopes of KL and MN are the same and the angle is congruent, we can conclude that ΔJKL~ΔJMN.

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2 years ago

Clara wants to cover the top of her jewelry box. The top of the box is a rectangle with a length of 9.4 cm and a width of 8.3 cm

Pavlova-9 [17]

Answer: 78.02 cm²

Step-by-step explanation:

1. To solve this problem you need to apply the formula for calculate the area of a rectangle, which is shown below:

$A=l*w$

Where $A$ is the area of the rectangle, $l$ is its lenght and $w$ is its width.

2. You know that the rectangle has a length of 9.4 cm and a width of 8.3 cm, therefore, you must substitute these values into the formula. Then, you obtain the following result:

$A=(9.4cm)(8.3cm)\\A=78.02cm^{2}$

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2 years ago