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Dennis_Churaev [7]
2 years ago
9

Complete these problems to review skills of the module (Will give 70 points)

Mathematics
2 answers:
bazaltina [42]2 years ago
7 0
2. 225
3. 65
and please vote brainliest
____ [38]2 years ago
6 0
2.
1/2 (15) (13 + 17)
1/2 (15) (30)     (simplify 13 + 17)
7.5 (30)     (multiply 1/2 and 15)
225    (multiply 7.5 and 30)

3.
1/2 (10) (9.4 + 3.6)
1/2 (10) (13)      (simplify 9.4 + 3.6)
(5) (13)    (multiply 1/2 and 10)
65   (multiply 5 and 13)

Hope this helped!

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Which of the following contextual situations accurately models the expression -125 - 25 ?
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The correct model is c
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3 years ago
Describe how the product of 0.4 x 2 would look on a ten-square grid.
Gnesinka [82]
<h3>Answer:  8</h3>

Explanation:

Draw out a 10 squares.

Shade in 4 of them to represent 4/10 = 0.40 = 0.4

Then use another color to shade another 4 squares. You should have 4+4 = 8 squares shaded, out of 10 total, giving 8/10 = 0.80 = 0.8

This is one visual way to see how 0.4 x 2 = 0.8

In other words, 0.4 x 2 means we have two copies of 0.4 added together. You could write it as 0.4 x 2 = 0.4 + 0.4 = 0.8 if you wanted.

See the diagram below.

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HELP!!! WILL GIVE BRAINLIEST +LIKE AND 5 STARS ANSWER THE QUESTION IN THE PICTURE
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Answer:

13) B

14) A

Step-by-step explanation:

13) Knowing that the interior angles of a triangle add up to 180, we can see that angle A is 53°. To find length c, we can use either sine or cosine. Let's use sine:

sin 37° = b/c = 15.9/c ---> c = 15.9/sin 37 = 26.4

To solve for side a, use cosine:

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14) Again, knowing that the interior angles of a triangle add up to 180, we know that angle B is 52°. This time,let's use cosine (although you may choose sine if you want):

cos 38° = b/16 ---> b = 16cos38 = 12.6

To find side a, use sine:

sin 38° = a/16 ---> a = 16sin38 = 9.9

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