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OverLord2011 [107]
3 years ago
7

What is the set of integers

Mathematics
1 answer:
amid [387]3 years ago
7 0
The set of integers consists (0), the positive natural numbers (1,2,3,) also called whole numbers, and their additive inverses the negative integers(-1, -2, -3,).
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In triangle abc, m of acb = 90, cd is perpendicular to ab , m of acd is 60. and bd is 5 cm. find ad
weeeeeb [17]

Let us draw a picture to make the things more clear.

Attached is the image.

We have been given that

\angle acd = 60 ^{\circ}

Therefore, we have

\angle dcb =90- 60= 30 ^{\circ}

Now, in triangle bcd, we have

\tan30 = \frac{5}{cd}\\
\\
\frac{1}{\sqrt 3}=\frac{5}{cd}\\
\\
cd=5\sqrt 3

Now, in triangle acb, we have

tan 60 = \frac{ad}{5\sqrt3} \\
\\
\sqrt 3=  \frac{ad}{5\sqrt3}\\
\\
ad= 5\sqrt3 \times \sqrt 3\\
\\
ad= 5\times 3\\
\\
ad=15

Thus, ad is 15 cm.


4 0
2 years ago
In order to prove △ABC ≅ △DBC by SAS, what additional information must be given?
SCORPION-xisa [38]
<span>The answer should be this ∠ACB ≅ ∠DCB. I hope this helps</span>
5 0
2 years ago
Read 2 more answers
Round 17.641 to the nearest whole number
vfiekz [6]
The nearest whole number would be 18 because the 6 is greater than 5. Anything greater than five, would most likely be rounded to the nearest whole number. Hope this helped!


8 0
3 years ago
If 1 pound = 16 ounces, what is the weight of the bananas ( 2.5 lbs ) in ounces.
Galina-37 [17]

Answer:

Hi there

Your answer is

40 ounces

Step-by-step explanation:

1lb = 16oz

2.5lbs = xoz

1lb = 16oz

*2.5

2.5lbs = 40oz

7 0
2 years ago
Read 2 more answers
The perimeter of a rectangle is 42 inches. If the width of the rectangle is 6 inches, what is the length?
ozzi

Answer:

15 inches

Step-by-step explanation:

42 = 2L + 2(6)

first, we need to isolate L.

solve 2(6) to make this easier

42 = 2L + 12

42 - 12 = 2L + 12 - 12 ( this cancels out 12. )

30 = 2L

30 ÷ 2 = 2L ÷ 2 ( this cancels out 2. )

15 = L

8 0
2 years ago
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