3 years ago

Is this a proportion 7/9=21/36

Mathematics

2 answers:

Marat540 [252]3 years ago

5 0

Answer:

No it's not

Step-by-step explanation:

21/7 = 36/9

3 = 4

bixtya [17]3 years ago

5 0

Answer:

No.

Step-by-step explanation:

The fractions are not equal.

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Answer:

A= 649.71

Step-by-step explanation:

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3 years ago

Find the 96th term of the arithmetic sequence 1, -12, -25, ...

goldenfox [79]

Answer:

The 96th term of the arithmetic sequence is -1234.

Step-by-step explanation:

first term (a)=1

second term (t2)=-12

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d=-12-1

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We know that,

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2 years ago

The line of symmetry of the parabola whose equation is y = ax^2 -4x + 3 is

alex41 [277]

Answer:

B. -1

Step-by-step explanation:

If we have a parabola whose equation is:

$y=ax^{2} +bx+c$

The line of symmetry is calculated as:

$x=\frac{-b}{2a}$

Now, we have the equation $y=ax^{2}-4x+3$ and the line of symmetry is $x=-2$

Where:

$b=-4\\c=3$

So, we can replace $b$ by -4 and $x$ by -2 and solve for $a$ using the following equation as:

$x=\frac{-b}{2a}\\-2=\frac{-(-4)}{2a}\\-2(2)a=4\\-4a=4\\a=-1$

It means that the equation of the parabola is equal to:

$y=-1x^{2}-4x+3$

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3 years ago

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Answer:

64 divided by 4=16

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Step-by-step explanation:

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2 years ago

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