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erma4kov [3.2K]
3 years ago
9

Solve for x. Write the smaller solution first, and the larger solution second. 2x^2-5=13

Mathematics
2 answers:
lianna [129]3 years ago
8 0

Answer:

x= -3

Step-by-step explanation:

mark branliest pls

Standard form:

2x2 − 18 = 0

Factorization:

2(x + 3)(x − 3) = 0

Solutions based on factorization:

x + 3 = 0   ⇒   x1 = −3

x − 3 = 0   ⇒   x2 = 3

Extrema:

Min = (0, −18)

Savatey [412]3 years ago
4 0

Answer:

x = ± 3

Step-by-step explanation:

Given

2x² - 5 = 13 ( add 5 to both sides )

2x² = 18 ( divide both sides by 2 )

x² = 9 ( take the square root of both sides )

x = ± \sqrt{9} = ± 3

smaller solution is x = - 3

larger solution is x = 3

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Let f(x) = 2X-7. what is f(4)?
In-s [12.5K]

Answer:

f(x)=1 (B)

Step-by-step explanation:

f(x) = 2X-7

f(4) = 2(4)-7

     =8-7

     =1

3 0
3 years ago
What is the simplified form of StartRoot 100 x Superscript 36 Baseline EndRoot ?
Morgarella [4.7K]

The simplified form of the expression √(100x³⁶) will be 10x¹⁸. Then the correct option is A.

<h3>What is simplification?</h3>

Making anything easier to accomplish or comprehend, as well as making it less difficult, is the definition of simplification.

The expression is given below.

⇒ √(100x³⁶)

Then the simplified form of the expression will be

⇒ √[(10x¹⁸)²]

⇒ 10x¹⁸

Then the correct option is A.

More about the simplification link is given below.

brainly.com/question/12616840

#SPJ1

5 0
2 years ago
There were 15 girls and 25 boys in the Science club. What percent of the members were girls?
Nostrana [21]

Answer: 37.5

Step-by-step explanation:

15 15 3

___ = ___ = ___ = 0.375 = 37.5

15+25 40 8

6 0
4 years ago
Germany has a population
egoroff_w [7]

Answer:

C. -186,205

Step-by-step explanation:

636,854 - 827,155 + 684,862 - 680,766

=> 1,321,716 - 1,507,921

=> -186,205

8 0
3 years ago
Help me with this sum please
vovangra [49]
Volume=length times width times height
this should be easy

a.
the volume of a box is 2.5 times 1 times 1 or 2.5 cubic meters

b.
number of boxes times volume per box=volume of container
number of boxes=volumecontainer/volumebox
find volumecontianer
volumecontainer=5 times 2 times 3=30 cubic meters

number of boxes=30/2.5
number of boxes=12
12 boxes needed to fill container


c.
box
1m=100cm
1m by 1m by 2.5m convert so (times everybody by 100)
100cm by 100cm by 250cm
multiply
2,500,000 cubic centimeters
4 0
3 years ago
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