3 years ago

Hurry A lot of Points on the Line!

Mathematics

2 answers:

Tatiana [17]3 years ago

7 0

Answer:

Step-by-step explanation:

iren2701 [21]3 years ago

4 0

Answer:

Step-by-step explanation:

The Four And the one dont change

The common factor for 7 and 3 are 21 wich you are trying to find the difference wich is subtraction.

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Luden [163]

Answer:

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Step-by-step explanation:

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2 years ago

The length of a rectangle is 4 units shorter than half the width. If the length of the rectangle is 18 units, which equation can

never [62]

Answer:

The width is 11 units.

Step-by-step explanation:

First, you have to add 4 to 18 which is 22. Then divide by 2.

8 0

3 years ago

Given the replacement set {2, 3, 4, 5}, solve 7x – 4 = 3x + 8.

Ludmilka [50]

7x-4=3x+ 8

-3x of both sides 4x-4=8
plus 4 to both sides 4x=12

12 divide by 4 = 3
hopeful that helps

5 0

3 years ago

Read 2 more answers

Solve the equation using the quadratic formula. Enter each solution in simplest form.

sergeinik [125]

For this case we have the following quadratic equation:

$x ^ 2-4x + 23 = 0$

The solutions will be given by:

$x = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2a}$

Where:

$a = 1\\b = -4\\c = 23$

Substituting the values we have:

$x = \frac {- (- 4) \pm \sqrt {(- 4) ^ 2-4 (1) (23)}} {2 (1)}\\x = \frac {4 \pm \sqrt {16-92}} {2}\\x = \frac {4 \pm \sqrt {-76}} {2}\\x = \frac {4 \pm \sqrt {76i ^ 2}} {2}\\x = \frac {4 \pmi \sqrt {76}} {2}\\x = \frac {4 \pmi \sqrt {2 ^ 2 * 19}} {2}\\x = \frac {4 \pm2i \sqrt {19}} {2}\\x = 2 \pm i\sqrt {19}$