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Ivenika [448]
3 years ago
8

HELP

Mathematics
2 answers:
iris [78.8K]3 years ago
6 0

Answer:

D x≥4

Step-by-step explanation:

−7 ≥ 13−5x

5x ≥ 20

x ≥ 4

Otrada [13]3 years ago
4 0

Answer:

D

Step-by-step explanation:

Given

- 7 ≥ 13 - 5x ( add 5x to both sides )

5x - 7 ≥ 13 ( add 7 to both sides )

5x ≥ 20 ( divide both sides by 5 )

x ≥ 4 → D

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For the polynomial below, -2 is a zero.
Harlamova29_29 [7]

Answer:

Step-by-step explanation:

please note -2 is not a zero ,it should be 2 is a zero.

by synthetic division

2|  1  4 -10 -4

  |      2  12  4

  |----------------

     1  6   2  | 0

x²+6x+2=0

x=\frac{-6 \pm \sqrt{36-8} }{2} \\or~x=\frac{-6 \pm2\sqrt{7} }{2} \\or ~x=-3\pm \sqrt{7} \\h(x)=(x-2)(x^2+6x+2)=(x-2)(x-3+\sqrt{7} )(x-3-\sqrt{7})

7 0
3 years ago
Suppose ABCD is a rhombus with AB=12 inches. The midpoints of its sides are joined to form a quadrilateral.
marishachu [46]

Answer:

Diagonal = 12"

Step-by-step explanation:

Learn your theorems.

5 0
3 years ago
A store buys sweatshirts for $12 each and marks up the price by 25%.
lions [1.4K]

Answer:

15$

Step-by-step explanation:

this is reallly easy you just have to divide 12 by 4 since 25% = 1/4

12/4 = 3

12 + 3 = 15

Hope this helps :)

4 0
3 years ago
A cistern is leaking 0.25 liters of water per minute. Approximately how many gallons of water is the cistern losing per hour? (P
nikklg [1K]

The cistern is losing approximately 3.963 gallons of water per hour.

<u><em>Explanation</em></u>

A cistern is leaking 0.25 liters of water per minute.

<u>We know, 1 gallon = 3.785 liters</u>

So, 0.25 liters = \frac{0.25}{3.785}=0.06605... gallons

That means, the cistern is losing 0.06605....gallons of water per minute.

So, the amount of water losing in 1 hour or 60 minutes =(0.06605...*60) gallons= 3.963 gallons <em>(Approximately)</em>

7 0
4 years ago
Read 2 more answers
6 13 multiply by 2 and then add 1
algol13

Answer:

1227 is correct ................................................

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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