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Ivan
3 years ago
11

Please help me I need these answers

Mathematics
1 answer:
vlada-n [284]3 years ago
5 0
I think the second to last one.
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#2) A lifeguard is swimming to a drowning swimmer. The lifeguard's location is at
Ulleksa [173]

Answer:

<h3>9.43</h3>

Step-by-step explanation:

The formula for calculating the distance between two points is expressed as

D =√(x2-x1)²+(y2-y1)²

Given the coordinates (0,0) and (8,5)

D = √(5-0)²+(8-0)²

D = √5²+8²

D = √25 + 64

D = √89

<em>D = 9.43</em>

<em>Hence the distance between the life guard and the swimmer is 9.43</em>

<em></em>

8 0
3 years ago
10. fossils are found only in _____. sedimentary rocks intrusive igneous rocks metamorphic rocks extrusive igneous rocks
Rashid [163]
Fossils are only found in sedimentary rocks. 
3 0
3 years ago
Read 2 more answers
Which equation can be used to solve the following word problem?
ra1l [238]
A is definitely the answer.
3 0
3 years ago
Read 2 more answers
Simplify: sin^2xcos^2x-cos^2x
shtirl [24]

Answer:

-cos^4(x)

Step-by-step explanation:

Step 1: Use the Pythagorean identity : 1=cos^2(x) + sin^2(x)

1-sin^2(x) = cos^2(x)

-1+sin^2(x) = -cos^2(x)

cos^2(x) (-cos^2(x))

Step 2: Factor out common terms cos^2(x)

cos^2(x) (sin^2(x)-1)

Ans: -cos^4(x)

8 0
2 years ago
8x +144 &lt; 2000<br> Solve the in equation and graph
avanturin [10]

Answer:

8x + 144 < 2000

-144

8x < 1856

- ------

8 8

x < 232

7 0
3 years ago
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