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stiv31 [10]
2 years ago
11

Can someone help me please

Mathematics
2 answers:
marta [7]2 years ago
5 0

Answer:

6.75 kg

Step-by-step explanation:

6/8 = 0.75

0.75 x 9 = 6.75

Anvisha [2.4K]2 years ago
3 0

Answer:

6 3/4 kg

Step-by-step explanation:

9 x 6/8 = 6 3/4

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What is the domain of f/g given f(x) = x+4 and g(x) = x-1
Butoxors [25]

Answer:   the domain of f/g is every real number except 1 which can be conventionally expressed as {(x,y): <em>x</em> ∈ R, x ≠ 1} OR (-∞ ≤ x < 1) ∩ (1< x ≤ ∞) OR x ∈ R; x ≠ 1.

Step-by-step explanation:

since f(x) = x + 4 and g(x) = x -  1

then f/g = x + 4/x - 1

the denominator of a function cannot be zero since a fraction with a denominator of zero is undefined.

∴  x - 1 ≠ 0

the value of x when g(x) = 0 is

       x - 1 = 0

       x = 1

∴ x ≠ 1

Therefore the domain of f/g is every real number except 1 which can be conventionally expressed as {(x,y): <em>x</em> ∈ R, x ≠ 1} OR (-∞ ≤ x < 1) ∩ (1< x ≤ ∞) OR x ∈ R; x ≠ 1.

5 0
3 years ago
Solve the following system algerbraically: y=-3(x-2) squared+4 y=-6x+16
pishuonlain [190]

y =  - 3(x - 2) ^{2}  + 4
y =  - 6x + 16
distribute the -3 and the square into the first equation
y =  - 3x ^{2}  + 12x - 8
y =  - 6x + 16
multiply the second equation by 2
y =  - 3x ^{2}  + 12x - 8
y =  - 12x + 32
add the equations together
y =  - 3x ^{2}  + 24
factor out -3
y =  - 3(x ^{2}  - 8)
factor inside parenthesis
y =  - 3(x +  \sqrt{8} )( x -  \sqrt{8})
refine
y =  - 3(x + 2 \sqrt{2} )(x - 2  \sqrt{2} )

8 0
3 years ago
Find the value of x, rounded to the nearest tenth?
Stolb23 [73]

Answer:

Step-by-step explanation:

we can use the trigonometric function in a right triangle

cos x = adjacent side to the angle /hypothenuse

cos 36°= x/10  ; multiply both sides by 10

10 * cos 36° = x ; make sure your calculator mode is in degrees

8.1  = x

4 0
3 years ago
−5n + 3(6 + 7n) whats the answer
IgorC [24]

Answer:

18 + 16 n

Step-by-step explanation:

does that equation equal anything??

4 0
3 years ago
Read 2 more answers
PLEASE PLEASE PLEASE HELP.
ZanzabumX [31]

Answer:

D

Step-by-step explanation:

The quotient is the result of dividing x by 5

The expression is then

15 - \frac{x}{5} → D

7 0
3 years ago
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