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Nataly [62]
3 years ago
14

Solve the expression x^2-100=0

Mathematics
1 answer:
enot [183]3 years ago
6 0

Answer:

x = ± 10

Step-by-step explanation:

Given

x² - 100 = 0 ( add 100 to both sides )

x² = 100 ( take the square root of both sides )

x = ± \sqrt{100} ← note plus or minus, hence

x = ± 10

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If f'(x) = ln (x-2), then the graph of y=f(x) is decreasing if and only if
oksano4ka [1.4K]
This answer would be D. x>1
7 0
4 years ago
Two linear equations are represented by using the tables below.
Dmitriy789 [7]

Answer:

(–3, –2)

Step-by-step explanation:

A linear equation is an equation in the form y = mx + b, where m is the slope of the line and b is the y intercept.

Equation A is represented by the points:

x:    -5      -2        0          1

y:    -4       -1         1           2

Equation A can be gotten by picking any two pair of points. Let us use (-5, -4) and (0, 1). We use this formula:

y- y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)\\\\y-(-4)=\frac{1-(-4)}{0-(-5)} (x-(-5))\\\\y +4=x+5\\\\y=x+1

Equation B is represented by the points:

x:    -6      -3        3          6

y:    -4       -2         2          4

Equation B can be gotten by picking any two pair of points. Let us use (-6, -4) and (3, 2). We use this formula:

y- y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)\\\\y-(-4)=\frac{2-(-4)}{3-(-5)} (x-(-6))\\\\y +4=\frac{2}{3}( x+6)\\\\y+4=\frac{2}{3} x+4\\\\y=\frac{2}{3}x

The solution to the system of equations is gotten by solving y = x + 1 and y = (2/3)x simultaneously.

Substitute y = (2/3)x in y = x + 1:

(2/3)x = x + 1

2x = 3x + 3

x = -3

Put x = -3 in y = (2/3)x

y = (2/3) (-3) = -2

Hence (-3, -2) is the solution

4 0
3 years ago
Read 2 more answers
I NEED HELP PLEASE !!!
Elis [28]

Answer:

the first one

Step-by-step explanation:

m=10 n=1

10+1 =11

10 x 1=10

3 0
3 years ago
Read 2 more answers
Martin charges $10 for every 5 bags of leaves he rakes. Last weekend, he raked 28 bags of leaves. How much money did he earn?
Elena L [17]

Answer:

$48

Explanation:

24 Divided by 5 = 4.8 times 10 =48

3 0
3 years ago
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Solve for z.<br><br> –2.9 + 4.2z = –14.73 − 12.74 + 0.3z<br><br> z =
Kobotan [32]

Answer:

\boxed{z = -6.3}

Step-by-step explanation:

=  >  - 2.9 + 4.2z =  - 14.73 - 12.74 + 0.3z \\  \\  =  >  - 2.9 + 4.2z =  - 27.47 + 0.3z \\  \\  =  > 4.2z - 2.9 =  0.3z - 27.47 \\  \\  =  > 4.2z - 0.3z - 2.9 =  - 27.47 \\  \\  =  > 3.9z =  - 27.47 + 2.9 \\  \\  =  > 3.9z =  - 24.57 \\  \\  =  > z =  -  \frac{24.57}{3.9}  \\  \\  =  > z =  - 6.3

4 0
3 years ago
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