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N76 [4]
3 years ago
14

Akar akar persaman 3x^2+x-4=0 adalah

Mathematics
2 answers:
Nimfa-mama [501]3 years ago
8 0
Factor (3x+4)(x-1)=0 so 3x+4=0 3x=-4 x=-4/3 x-1=0 x=1 x=1 and -4/3
Diano4ka-milaya [45]3 years ago
4 0
1 and -4/3 ...........

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She once sang in the choir, and wore pretty clothing. Did I use the comma right ?
kolezko [41]
I think there is no need to have a comma in this sentence
6 0
3 years ago
Read 2 more answers
Please help so confused
Sauron [17]

Answer:

  • turning point: (0, -1)
  • domain, range: all real numbers
  • x-intercept: (1/27, 0)
  • y-intercept: (0, -1)
  • transformations: vertical expansion by a factor of 3; translation down 1

Step-by-step explanation:

There are a couple of transformations that may be of interest:

  g(x) = k·f(x) . . . . vertical scaling by a factor of k

  g(x) = f(x) +k . . . vertical translation by k units (up)

  g(x) = f(x -k) . . . horizontal translation by k units (right); <em>not used here</em>

__

Unlike the square root function, which is undefined for negative values, the cube root function is defined for all real numbers. Its domain and range are all real numbers.

The turning point of a cube-root function is the origin. Here, that has been translated down 1 unit, so it is (0, -1). That is also the y-intercept.

The x-intercept is the value of x where g(x)=0:

  0 = 3∛x -1

  1 = 3∛x

  1/3 = ∛x

  (1/3)³ = x = 1/27

The x-intercept is (1/27, 0).

__

<u>Transformations</u>

As we discussed above, the addition of -1 to the parent function causes it to be translated down 1 unit.

The multiplication of the parent function by 3 causes it to be vertically expanded by a factor of 3.

7 0
2 years ago
The standard deviation of a sample taken from population A is 17.6 for a sample of 25. The standard deviation of a sample taken
Dmitry_Shevchenko [17]
The answer is 5.5

The standard deviation (sd or σ) of the sample mean difference is:
sd = √(sd₁²/n₁ + sd₂²/n₂)

For the population A:
sd₁ = 17.6
n₁ = 25

For the population B:
sd₂ = 21.2
n₂ = 30

Hence:
sd = √(sd₁²/n₁ + sd₂²/n₂)
    = √(17.6²/20 + 21.2²/30)
    = √(309.76/20 + 449.44/30)
    = √(15.49 + 14.98)
    = √(30.47)
    = 5.5
5 0
3 years ago
What is the answer? 6^2(2/5 +5)-3
Vikki [24]

\text{Hey there!}

\mathsf{Do\ PEMDAS\ to solve\ for\ this\ equation!}

\text{PEMDAS simply means}\downarrow

\bullet\ \large\text{\bf{Parentheses}}  \large\checkmark

\bullet \ \large\text{\bf{Exponents}} \large\checkmark

\bullet\ \large\text{\bf{Multiplication}} \large\checkmark

\bullet\ \large\text{\bf{Division}} \large\checkmark

\bullet \ \large\text{\bf{Addition}}  \large\checkmark

\bullet\ \large\text{\bf{Subtraction}} \large\checkmark

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

\mathsf{6^2(\dfrac{2}{5} + 5)-3}\downarrow

\mathsf{(\dfrac{2}{5}+5) = \boxed{\underline{\bf{\dfrac{27}{5}}}}}

\mathsf{6^2=6\times6=\boxed{\underline{\bf{36}}}}

\mathsf{36(\dfrac{27}{3})=\boxed{\mathsf{\underline{\bf{\dfrac{972}{5}}}}}}

\mathsf{\dfrac{972}{5}-3=\ \boxed{\mathsf{\underline{\bf{\dfrac{957}{5}}}}}}

\boxed{\boxed{\bf{Answer: \boxed{\mathsf{\bf{\dfrac{957}{5}}}}}}}\ \checkmark

\text{Good luck on your assignment and enjoy your day!}

~\dfrac{\frak{LoveYourselfFirst}}{:)}

6 0
2 years ago
Which graph represents the equation y^2=-4x?
liraira [26]
You can use photomath to find that

6 0
2 years ago
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