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3 years ago

Write each fraction or mixed number as a decimal and percent2/5

Mathematics

2 answers:

shtirl [24]3 years ago

7 0

Fraction, 2/5. Decimal, 0.4. Percent, 40%. Hope this helps.

Elden [556K]3 years ago

6 0

If you need to show work... 2/5=0.4.... 0.4 moved 2 decimals to the right is 40%

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Help please!!!

katovenus [111]

Answer:

x = $\frac{7+\sqrt{47}\times i }{4}$

Step-by-step explanation:

To solve quadratic systems,we always substitute one variable in terms if the other and then solve the equation.

x + 2y = 6 ---------------(1)

y - 5 = $(x-2)^{2}$ ---------------(2)

y = $(x-2)^{2}$ + 5 ---------------(3)

Substitute (3) in (1) ,

x + 2( $(x-2)^{2}$ + 5 ) = 6

$(a + b)^{2}$ = $a^{2} + 2ab + b^{2}$

x + 2( $x^{2} - 4x + 4$ + 5 ) = 6

$2x^{2} - 7x + 12=0$ --------------(4)

The roots of the quadratic equation $ax^{2} +bx+c$ is

x = $\frac{(-b) + \sqrt{(-b)^{2}-4 \times ac } }{2 \times a}$ -----------(5)

According to equation (5),solution of (4) is

x = $\frac{7 + \sqrt{(-7)^{2}-4 \times 24 } }{2 \times 2}$

x = $\frac{7+\sqrt{49-96}}{4}$

x = $\frac{7+\sqrt{47}\times i }{4}$

4 0

3 years ago

A kite is a quadrilateral with two pairs of adjacent sides that are equal in length.Jackson has a rectangular piece of cloth tha

Klio2033 [76]

No he's short 2 cm
hope it helps

7 0

3 years ago

Set up an equation to show (×+2)×5=y

Masteriza [31]

5x+10 = y

Subtract 10 from both sides.

5x = y - 10

Divide both sides by 5.

x = 1/5y - 2

Plugin 1/5y - 2 for the y.
5(1/5y - 2)
1 - 10 + 10 = y

1 = y

Your Answer(s)
y = 1
x = 1/5y - 2

4 0

3 years ago

Are the triangles congruent, if so by what theorem/postulate

liberstina [14]

Yes, SSS

PR are already a given side. PS and PQ are also given sides. Lastly, RS and RQ are given sides.

4 0

3 years ago

How many cm are in 26 in? (1 in = 2.54 cm)

Contact [7]

Answer:

66.04

Step-by-step explanation:

26 x 2.54 =

= 66.04

5 0

2 years ago

Read 2 more answers