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3 years ago

Determine whether the pair of figures is similar.

Mathematics

2 answers:

pogonyaev3 years ago

7 0

Answer:

The triangles are similar

Step-by-step explanation:

You first flip the first triangle so the hypotenuse is facing the bottom right like the second triangle and the 49 degrees would be matching the same side as the picture would depict

You can then use the equaation 43 + 49 + x = 180 to solve for the missing angle in the second right triangle.

92 + x = 180

x = 88

The degrees match up, you then have to compare the sides.

You can first check the ratios between the same sides of the different triangles.

2.8 : 8.4

4 : 12

3.1 : 9.3

all of these ratios would be simplified to a 1:3 ration, meaning all the sides are proportional, making the triangles similar.

pogonyaev3 years ago

5 0

Answer:

answered in comments :)

Step-by-step explanation:

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julsineya [31]

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8 0

3 years ago

The coordinate bridge shows the cost of different numbers of bookmarks how many sense do for bookmarks cost.

pogonyaev

Answer:

54 cents

Step-by-step explanation:

The cost of bookmarks relating to the number of bookmarks is given by the graph shown. Therefore:

From the graph, we can determine the relationship between the cost of bookmarks and the number of bookmarks by using two points. The equation of a line passing through points $(x_1,y_1)\ and\ (x_2,y_2)$ is:

$y-y_1=\frac{y_2-y_1}{x_2-x_1} (x-x_1)\\$

From the graph, y represents the cost of bookmarks in cents and x represent the number of bookmarks. we can see that it passes through the point (2, 30) and (7, 90). Hence:

$y-30=\frac{90-30}{7-2}(x-2)\\\\y-30=12(x-2) \\\\y-30=12x-24\\\\y=12x+6$

The cost of 4 bookmarks (x = 4):

y = 12(4) + 6

y = 54 cents

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3 years ago

Please help me taking a test

Paladinen [302]

Answer: the one that ends with 30. D the fourth one

Step-by-step explanation:

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3 years ago

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Anon25 [30]

3345 because it’s squared

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3 years ago

A grocery store sells three different quantities of sugar. A 1-pound bag costs $1.10, a 2-pound bag costs $1.92, and a 3-pound b

Mashcka [7]

$1.10 per pound for the 1-pound bag.
$0.96 per pound for the 2-pound bag.
$0.92 per pound for the 3-pound bag.

As the quantity of sugar increases, the unit cost decreases.

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3 years ago