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GrogVix [38]
3 years ago
12

What is the following product?

Mathematics
1 answer:
jenyasd209 [6]3 years ago
6 0

Answer:

10\sqrt{3}

Step-by-step explanation:

\sqrt{30} .\sqrt{10} \\= \sqrt{300} \\=\sqrt{100*3} \\= 10 \sqrt{3}

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in the morning, sophie goes to the church then goes to school. in the afternoon she goes from school to home. the map shows the
olasank [31]
Distance between home and school(on map)=5cm

every 4cm=8km

therefore distance between home and school=
5/4×8 = 1.25×8 = 10km
5 0
3 years ago
Help plzzz will give brainliest
lana [24]

Answer:

1/3 and false at least i think wait for other answer to make sure it is correct

Step-by-step explanation:

3 0
2 years ago
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A bag contains 30 red and blue marbles. If 19 are blue, what fraction of the marbles are blue?
Musya8 [376]

Answer:

19%

Step-by-step explanation:

19/100. i don't think it is that simple, but i did the best i could

5 0
2 years ago
Calculate pt3 such that a line from pt1 to pt3 is perpendicular to the line from pt1 to pt2, and the distance between pt1 and pt
Leni [432]
Let the point_1 = p₁ = (1,4)
and      point_2 = p₂ = (-2,1)
and      Point_3 = p₃ = (x,y)

The line from point_1 to point_2 is L₁ and has slope = m₁
The line from point_1 to point_3 is L₂ and has slope = m₂
m₁ = Δy/Δx = (1-4)/(-2-1) = 1
m₂ = Δy/Δx = (y-4)/(x-1)
L₁⊥L₂ ⇒⇒⇒⇒ m₁ * m₂ = -1
∴ (y-4)/(x-1) = -1 ⇒⇒⇒ (y-4)= -(x-1)
(y-4) = (1-x) ⇒⇒⇒⇒⇒⇒⇒⇒⇒⇒⇒⇒⇒⇒ equation (1)

The distance from point_1 to point_2 is d₁
The distance from point_1 to point_3 is d₂
d = \sqrt{Δx^2+Δy^2}
d₁ = \sqrt{(-2-1)^2+(1-4)^2}
d₂ = \sqrt{(x-1)^2+(y-4)^2}
d₁ = d₂
∴ \sqrt{(-2-1)^2+(1-4)^2} = \sqrt{(x-1)^2+(y-4)^2} ⇒⇒ eliminating the root
∴(-2-1)²+(1-4)² = (x-1)²+(y-4)²
 (x-1)²+(y-4)² = 18
from equatoin (1)  y-4 = 1-x
∴(x-1)²+(1-x)² = 18            ⇒⇒⇒⇒⇒ note: (1-x)² = (x-1)²
2 (x-1)² = 18
(x-1)² = 9
x-1 = \pm \sqrt{9} = \pm 3
∴ x = 4 or x = -2
∴ y = 1 or y = 7

Point_3 = (4,1)  or  (-2,7)












8 0
3 years ago
If your test increased by 14 points, what percent did you increase if there were 50 questions in total? show work
solmaris [256]
Increase = 14
Total =50
Percentage increase = 14/50 x 100 = 28%
8 0
3 years ago
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