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Mazyrski [523]
3 years ago
14

400 thousands + 600 thousands in standard form

Mathematics
2 answers:
Fed [463]3 years ago
6 0
400,000 + 600,000 = 1,000,000
Luden [163]3 years ago
3 0
The answer will be 100,000 be3cause 6+4 is 10 and add 4 zero's
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There are 6 swimmers in a race. In how many ways can they finish in first and second place?
hodyreva [135]

Answer:

step 1. 6x2=12 first place way

step 2. 12×2=24

step 3. 24+6=30 second place way

6 0
2 years ago
If the smallest angle of a triangle is 20° and it is included between sides of 4 and 7, then (to the nearest tenth) the smallest
lawyer [7]

Answer:

3.5

Step-by-step explanation:

The smallest side of a triangle is formed by the smallest angle in the triangle.

To find the side opposite (formed by) the 20 degree angle, we can use the Law of Cosines. The Law of Cosines states that for any triangle, c^2=a^2+b^2-ab\cos \gamma, where a, b, and c are the three sides of the triangle and \gamma is the angle opposite to c.

Let c be the side opposite to the 20 degree angle.

Assign variables:

  • a\implies 4
  • b\implies 7
  • \gamma \implies 20^{\circ}

Substituting these variables, we get:

c^2=4^2+7^2-2(4)(7)\cos 20^{\circ},\\c^2=16+49-56\cos 20^{\circ},\\c^2=12.377213236,\\c=\sqrt{12.377213236}=3.51812638147\approx \boxed{3.5}

Therefore, the shortest side of this triangle is 3.5.

5 0
3 years ago
What is the radius of the cone ? I need help
Mariulka [41]

Answer:

4

Step-by-step explanation:

pi*r^2

just put each number where r is to find out the answer

7 0
3 years ago
If -2y = x and 3x + 2y = -4, then what is xy?
Elina [12.6K]

Answer:

1

Step-by-step explanation:

3(-2y) +2y = -4

-6y+2y=-4

-4y=-4

y=1

3 0
3 years ago
The width of a rectangle is 13 inchs more than 5 times the length. if x represents the length, write an algebraic expression in
rjkz [21]

perimeter is 2L+2W

problem states width = 5L+13

so plug that in for w:

P=2L+2(5L+13)

 now simplify

P=2L+10L+26

P=12L+26

3 0
3 years ago
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