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alisha [4.7K]
3 years ago
8

Of the following, which is the solution to 2x2 - 5x = -8?

Mathematics
2 answers:
Ivanshal [37]3 years ago
5 0

Answer:

(5±\sqrt[i]{39})/4

Step-by-step explanation:

use the formula (-b±\sqrt{b^{2}-4ac })/2×a

"i" is what a negative under a square root equals

frozen [14]3 years ago
4 0

The answer i think is 0

.

<em>sorry if not-</em>

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If f(x) = 3x + 1 and f^-1 = x-1/3 , then the ordered pair of f(3) =
Basile [38]

Answer:

10

Step-by-step explanation:

f(x) = 3x + 1

f^-1 = x-1/3 , it is known as inverse function.

f(3)= 3*3 +1

=9+1

=10

To find inverse,

x=3x + 1

y=3x+1

Exchanging the position or x and y

x=3y+1

x-1=3y

.•. y=x-1/3

5 0
2 years ago
How to convert m into mm​
ArbitrLikvidat [17]

Answer:

Multiply value in mm by 1000

Step-by-step explanation:

For example, 3m = (3 * 1000)mm

                            = 3000mm

3 0
3 years ago
Read 2 more answers
In rectangle DATE, the diagonals DT and AE intersect as S. If LaTeX: AE=40 A E = 40 and LaTeX: ST=x+5 S T = x + 5 , find the val
svetoff [14.1K]
For this case we have the following diagonals:
 AE = 40
 ST = x + 5
 The intersection of the diagonals occurs when:
 AE = ST
 Therefore, matching we have:
 40 = x + 5
 Clearing x we have:
 x = 40-5
 x = 35
 Answer:
 The value of x is:
 x = 35
4 0
3 years ago
Read 2 more answers
Please help! I will mark brainliest!
Maurinko [17]

\left(3.5\times 10^{-2}\dfrac{kg}{L}\right)\times\left(2.64\times 10^{20}\,L\right)=(3.5\times 2.64)\times 10^{(-2+20)}\,kg\\\\=\bf{9.24\times 10^{18}\,kg}

_____

Multiply the numbers and add the exponents.

4 0
3 years ago
The perimeter of a rectangle is 56 cm. When its length is reduced by 2 cm and its
Svetlanka [38]
187 cm squared.

Based on rectangle:

2L + 2W = 56

Draw the square and name your sides the following:
(W+4) , (L-2), (W+4), (L-2)

Because it’s a square, all sides are equal and we can remove and solve for one of the variables but keep in mind the parameter changed..

The new parameter is 56 minus 4cm + 8cm...keep in mind I used 4cm and 8cm because we have a 2 Lengths and 2 Widths.

Solving 60= 4 (w+4)
W= 11

So the side of our square is 11+4=15

L-2 = 15
L=17

So the area of the Rectangle is 11*17=187 cm squared.

Please let me know if it’s correct !
4 0
3 years ago
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