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2 years ago

Given: Point C is the midpoint of AB¯¯¯¯¯.

Mathematics

1 answer:

suter [353]2 years ago

3 0

Answer:

See proof below

Step-by-step explanation:

If C is the midpoint of AB, then AC = CB

Given

AC=7x−10;

CB=3x+10

Then 7x - 10= 3x+10

Add 10 to both sides

7x-10+10 = 3x +10+10

7x = 3x + 20

7x - 3x = 10+10

4x = 20

x = 20/4

x = 5

Get AC

AC = 7x - 10

AC= 7(5) - 10

AC = 35-10

AC = 25 (Proved)

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Can you please help me

sergiy2304 [10]

Answer:

x = 23

Step-by-step explanation:

The marked angles are "corresponding," hence congruent:

8x -27 = 7x -4

x = 23 . . . . . . . . . add 27-7x to both sides

5 0

3 years ago

115.376 as hundreds tens and ones

Gennadij [26K]

Answer:

NAH FAM- I GOTCHU

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Step-by-step explanation:

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3 years ago

If two parallel planes are cut by a third plane, then the lines of intersection are _________.

maxonik [38]

<span>If two parallel planes are cut by a third plane, then the lines of intersection are parallel and cannot intersect one another.</span>

6 0

2 years ago

Read 2 more answers

An arithmetic sequence is given below.

Mashcka [7]

Given that $a_1=24$ and $a_2=17$ , if $a_n$ is an arithmetic sequence, then the common difference between successive terms is $d=a_2-a_1=17-24=-7$ .

You then have

$a_2=a_1+d$
$\implies a_3=a_2+d=a_1+2d$
$\implies a_4=a_3+d=a_1+3d$
$\implies \cdots\implies a_n=a_{n-1}+d=\cdots=a_1+(n-1)d$

So the explicit formula for the $n$ th term is

$a_n=24-7(n-1)$

3 0

3 years ago

Solve 2(4 x + 3) < 5 x + 21. { x | x < 9} { x | x > -5} { x | x > -9} { x | x < 5}

Nesterboy [21]

Answer:

x <5

Step-by-step explanation:

2(4 x + 3) < 5 x + 21

Distribute

8x +6 < 5x +21

Subtract 5x from each side

8x -5x +6 < 5x-5x+21

3x +6 < 21

Subtract 6 from each side

3x+6-6 <21-6

3x <15

Divide each side by 3

3x/3 <15/3

x <5

5 0

3 years ago