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Alexus [3.1K]
2 years ago
10

Find the cosine of ∠J.

Mathematics
1 answer:
Nesterboy [21]2 years ago
3 0

Answer:

Step-by-step explanation:

cos ( J ) = \frac{KJ}{JI} = \frac{\sqrt{29} }{\sqrt{94} } = \sqrt{\frac{29}{94} }

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Afina-wow [57]

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130, exterior, 8, 93, 87, interior

Step-by-step explanation:

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3 years ago
Find the area of a triangle with a base of 7.5 m and a height of 4*
oksian1 [2.3K]

Answer:

15 units²

Step-by-step explanation:

Hi there!

A=\displaystyle\frac{1}{2} bh where <em>b</em> is the base and <em>h</em> is the height

Plug in the base (7.5) and height (4):

A=\displaystyle\frac{1}{2} (7.5)(4)\\\\A=\displaystyle\frac{1}{2} (30)\\\\A=15

Therefore, the area of the triangle is 15 units².

I hope this helps!

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is there a proportional relationship between the area of an enlarged rectangle and the area of the original rectangle
Maru [420]
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3 years ago
Simplify: ( -16 - 8)/2 + 25 / 5 + 1
Alika [10]

-6

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7 0
3 years ago
Read 2 more answers
Zubin has two pieces of string. One piece is 36 inches long and the other is 48 inches long. He wants to cut them into equal pie
skelet666 [1.2K]

Answer:

12 pieces each:

S_1 = 3\ in

S_2= 4\ in

Step-by-step explanation:

Given

S_1 = 36\ in -- first string

S_2 = 48\ in --- second string

Required

Determine the number of equal pieces

To do this, we first calculate the HCF of the length of both pieces (36\ and\ 48)

36 = 2 * 2 * 3 * 3

48 = 2 * 2 * 2 * 2 * 3

Common\ prime\ factors = 2, 2\ and\ 3

The HCF is:

HCF = 2 * 2 * 3

HCF = 12

<em>Hence, he can cut both strings to 12 pieces each</em>

<em></em>

<em>Recall that </em>

S_1 = 36\ in

<em>The first string can then be cut in to 3 inches each (i.e. 36/12)</em>

S_2 = 48\ in

<em>The first string can then be cut in to 4 inches each (i.e. 48/12)</em>

7 0
3 years ago
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