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3 years ago

Need help with khan, again.

Mathematics

1 answer:

IrinaK [193]3 years ago

5 0

Answer:

6.28

Step-by-step explanation:

1/2 x 3.14 x 2^2 = 6.28

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Need help with this...

garri49 [273]

Answer:

right out the equation solve

Step-by-step explanation:

7 0

3 years ago

Which number can not be used to write related number sentences? explain. 5 7 9 14

Veseljchak [2.6K]

The number 7 cannot be used to write related number sentences because it wouldn't fit into the equation & make it true.
9 + 5 = 14
5 + 9 = 14
14 - 5 = 9
14 - 9 =5
Nowhere in any of these equations can the #7 go in, & make these number sentences true.
Hope this helps & makes sense ! (:

4 0

3 years ago

briana house is at (1,6) and jordan house is(5,3) what is one possible path from brianna house to jordan house

Maurinko [17]

Answer:

see the explanation

Step-by-step explanation:

Let

A (1,6)------> location Brianna's house on a map

B (5,3)------> location Jordan's house on a map

we know that

One possible path from Brianna's house to Jordan's house it's a straight line ( the shortest distance)

using a graph tool

see the attached figure

<em>Find the distance points AB</em>

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

substitute the values

$d_A_B=\sqrt{(3-6)^{2}+(5-1)^{2}}$

$d_A_B=\sqrt{(-3)^{2}+(4)^{2}}$

$d_A_B=\sqrt{25}$

$d_A_B=5\ units$

The distance from Brianna's house to Jordan's house is 5 units

6 0

4 years ago

(4,7), (x,19); slope = 3 the pair points lies on the same line with the given slope. Find x

Andrew [12]

So we are given two points, say P1(4,7), P2(x,19).

Slope is given by
m=3=(y2-y1)/(x2-x1)=(19-7)/(x-4)
solve for x
3=(19-7)/(x-4)
cross multiply
3(x-4)=12
3x-12=12
3x=12+12=24
x=8

3 0

4 years ago

Please simplify y-4x-(1-6x)+3y+x

andriy [413]

You have to combine like numbers

y-4x-1(1-6x)+3y+x

4y -4x-(1-6x)+x

4y - 4x - 1 + 6x + x

4y + 3x - 1

7 0

4 years ago