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lisabon 2012 [21]
3 years ago
10

Find the number of real- number solutions of the equation x^2+10=2

Mathematics
1 answer:
Andrew [12]3 years ago
4 0

Answer:

imaginary

Step-by-step explanation:

x {}^{2}  = 2 - 10 \\  {x}^{2}  =  - 8 \\ x =  \sqrt{ - 8}

from the working strp, we know that the number is imaginary

we can't square root the negative number

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9.12cm<br> 10.36cm<br> 11.34cm<br> 12.61cm
Vinvika [58]
Tan80 = QR / RS
QR = 5.67 (2)
QR = 11.34

answer

<span>11.34cm</span>
8 0
3 years ago
Identify which equations have one solution, infinitely many solutions, or no solution.
notsponge [240]
First one= x=5
second one= x=1/30 or 0.03 or 30^-1
third one= All real numbers or R
fourth one= No solution
Fifth one= All real numbers or R
Sixth one= p=-10/3 or -3 1/3 or -3.3

R is just the symbol for all real numbers. Also know as infinitely many solutions.

Hope this helps ! :) have a good day! Make sure you eat.
7 0
3 years ago
A DEF has vertices D(-5,-1), E (3, 3), and F (1,-5). Find the equation of the altitude through F in
Tems11 [23]

Answer:

y = -2x -3

Step-by-step explanation:

- the altitude trough F is a perpendicular line to the line DE

- find slope of line DE

D ( x2 = -5, y2 = -1); E (x1 = 3, y1 = 3)

slope m = (y2-y1) / (x2-x1) = (-1-3) / (-5-3) = -4/ -8 = 1/2

-find equation of the altitude trough F

lines that are perpendicular have the slope negative reciprocal (negative reciprocal of 1/2 is -2)

y= -2x +b , for point F(1, -5)

-5 = -2*1 +b, add 2 to both sides

-5 +2 = b, combine like terms

-3 =b

equation of the altitude trough F is y = -2x -3

4 0
2 years ago
every 1/2 mile along a hiking path there is water fountain, every 1/4 mile there is a bench, and every 1/8 mile there is a marke
defon
Bench and mile marker
7 0
3 years ago
Question is in the picture
MrRa [10]

Answer:

B)  12.5 ft

Step-by-step explanation:

set up a proportion of inches/feet equals inches/feet

let 'h' = height of sign

5.4/18 = 3.75/h

cross-multiply:

5.4h = 67.5

h = 12.5

5 0
2 years ago
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