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3 years ago

Solve the following absolute value equation |2x+3|=5

Mathematics

2 answers:

Xelga [282]3 years ago

8 0

2x+3=5

Subtract 3 both sides

2x=5-3

Simplify

2x=2

Divide 2 each side

X= 2/2

Evaluate

X=1

Now second part

2x+3=-5

2x=-5-3

2x= -8

X=-8/2

X=-4

So x= 1,-4

matrenka [14]3 years ago

8 0

2x+3=5

Subtract 3 by both sides
2x=2

Divide 2 by both sides
x=1

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I need help am i correct

nirvana33 [79]

13 x 5 = 65

4 x 7 = 28

28 + 65 = 93

Your error is in you said 13 x 65 is 75

6 0

4 years ago

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A game has a circular playing area in which you must hit a ball into a circular hole. The area of the playing area is 16ft2. The

Bad White [126]

Answer:

$4.9\%$

Step-by-step explanation:

we know that

To find out the probability of hitting a ball into the circular hole, divide the area of the hole by the area of the playing area

Let

x ----> the area of the hole

y ----> the area of the playing game

$P=\frac{x}{y}$

we have

$y=16\ ft^2$

<em>Find the area of the hole</em>

The area of the circle (hole) is equal to

$A=\pi r^{2}$

we have

$r=1/2=0.5\ ft$ ----> the radius is half the diameter

assume

$\pi =3.14$

substitute

$A=(3.14)(0.5)^{2}$

$A=0.785\ ft^2$

<em>Find the probability</em>

$P=\frac{x}{y}$

we have

$x=0.785\ ft^2$

$y=16\ ft^2$

substitute

$P=\frac{0.785}{16}$

$P=0.0491$

Convert to percentage

$0.0491*100=4.91\%$

Round to the nearest tenth

$4.9\%$

5 0

3 years ago

Karl has stamps in his desk drawer. The possible combinations of stamps are shown below in the attachment.

ArbitrLikvidat [17]

The table gives the different combinations of stamps Karl has

the first option says that

a. The total number of stamps is 25.

according to this the addition of stamps for each combination should be 25

1st combination is 18 + 17 = 35

therefore this statement is wrong as the addition of stamps is 35 stamps

b. The total value of the stamps is $18.75.

lets check the first combination

18 x $ 0.45 + 17 x $ 0.65 = 8.1 + 11.05 = $19.15

so this statement too is wrong

c. The total number of stamps is 35.

as calculated above we know that the sum of the stamps in the first combination is 35

so lets check for the other combinations

20 + 15 = 35

22 + 13 = 35

25 + 10 = 35

so the answer is 35

this statement is correct

d.The total value of the stamps is $19.15

lets check the value for the third combination

22 x 0.45 + 13 x 0.65 = 9.9 + 8.45 = $18.35

this value isnt equal to $ 19.15

therefore this statement too is wrong

correct answer is C

4 0

3 years ago

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The vertex angle of an isosceles triangle measures 40°. What is the measure of a base angle?

disa [49]

<span>Triangle is 180 degrees, so you will subtract 50 from 180 which will give you 130.</span>

8 0

3 years ago

Given f(x) = 9x - 10, find f(8) *

Rama09 [41]

Answer:

$\huge\boxed{f(8) = 62}$

Step-by-step explanation:

$\sf f(x) = 9x-10\\\\Put\ x = 8\\\\f(8) = 9(8) -10\\\\f(8) = 72-10\\\\f(8) = 62\\\\\rule[225]{225}{2}$

Hope this helped!

<h2>~AnonymousHelper1807</h2>

3 0

3 years ago

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