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Margaret [11]
2 years ago
10

33. Due to some error in a weighing scale, it shows the following reading when at rest (no weight is placed on it). Neerja measu

red her weight on this scale. The weight shown on the scale was 28 kg. What should she do to find out her correct weight?
(A) Add 2 kg to the weight shown. (B) Subtract 2 kg from the weight shown.
(C) Subtract 28 kg from the weight shown. (D) Add 4 kg to the weight shown
Mathematics
1 answer:
Komok [63]2 years ago
5 0

Answer:

The traditional scale consists of two plates or bowls suspended at equal distances from a fulcrum. One plate holds an object of unknown mass (or weight), while known masses are added to the other plate until static equilibrium is achieved and the plates level off, which happens when the masses on the two plates are equal. The perfect scale rests at neutral. A

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Use the quadratic formula to solve the equation to the exact value or round to two decimal places.
lys-0071 [83]
First set everything to 0.
{x}^{2}  + x - 5
Giving you A= 1 , B= 1 and C= -5
Then input everything into the quadratic formula and either solve by hand or use a calculator.
Note exact values are found by hand, decimals are found using a calculator.

6 0
3 years ago
WORTH 30 POINTS! Replace ... with <, ≤, =, >, or ≥ so that the inequality will be true for any value of x.
Len [333]
Hope this helps a bit

8 0
2 years ago
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Can you solve this problem please​
Afina-wow [57]

Answer:

k = 11

Step-by-step explanation:

Given the points are collinear then the slopes between consecutive points are equal.

Using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (5, 1) and (x₂, y₂ ) = (1, - 1)

m = \frac{-1-1}{1-5} = \frac{-2}{-4} = \frac{1}{2}

Repeat with another 2 points and equate to \frac{1}{2}

with (x₁, y₁ ) = (1, - 1) and (x₂, y₂ ) = (k, 4)

m = \frac{4+1}{k-1} , then

\frac{5}{k-1} = \frac{1}{2} ( cross- multiply )

k - 1 = 10 ( add 1 to both sides )

k = 11

6 0
3 years ago
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Use the given conditions to write a system of equations. Solve the system and find the numbers. The sum of two numbers is 10. If
Nitella [24]
X + y = 10
x - y = 2

add the equations together
2x = 12
x = 6

6 + y = 10
y = 3
3 0
3 years ago
Given the functions, f(x)=x^3+2 and g(x)=x-9, perform the indicated operation. When applicable, state the domain restriction. (f
tiny-mole [99]
The domain of (f/g)(x) considers the domains of g(x) and f(x) and makes sure that g(x)≠0

because (f/g)(x)=f(x)/g(x)
and division by 0 is not allowed

the domains of f(x) and g(x) are all real numbers
now find what make g(x)=0
0=x-9
9=x

9 is restricted from the domain
domain is all real numbers except 9


so
(\frac{f}{g})(x)=\frac{f(x)}{g(x)}=
\frac{x^3+2}{x-9}
the domain is all real numbers except for 9
7 0
3 years ago
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