Mathematics: A. -3 B. 6 C. 5 D. -4

A. -3 B. 6 C. 5 D. -4 - id36547705561, ridzrana02

Ответ:

Spiderblack212

02.02.2022

Mathematics

Step-by-step explanation:

So we want to find the value of x.

Note that the entire segment (JK) is the sum of the segments JI and IK. In other words:

JK=JI+IK

We know that JK is (2x-1), JI is (2), and IK is (x+3). Substitute:

2x-1=(2)+(x+3)

On the right, add:

2x-1=x+5

Add 1 to both sides:

2x=x+6

Subtract x from both sides. The right cancels:

x=6

And the value of x is 6.

Our answer is B.

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Ответ:

lexybellx3

16.06.2021

Mathematics

It is 2√5

Step-by-step explanation:

${ \bf{ {(x - a) + {(y - b)}^{2} = {r}^{2} } }} \\ { \tt{ {(4 - 0)}^{2} + {(y - 0)}^{2} = {6}^{2} }} \\ { \tt{16 + {y}^{2} = 36}} \\ { \tt{ {y}^{2} = 20 }} \\ { \tt{ {y} = \sqrt{5 \times 4} }} \\ { \tt{y = 2 \sqrt{5} }}$

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A. -3
B. 6
C. 5
D. -4

Ответ:

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