the value of x=4 is the solution to all following equation except witch? 2x+7=15 x+5=3x-3 3(x+1)=x+11 or x+12=5x-2

Mathematics

1 answer:

garri49 [273]2 years ago

7 0

Except x+12=5x-2
because:
4+12= 5*4-2
16=20-2
16=18 -- which is not true

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Phoenix [80]

Answer:

Step-by-step explanation:

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Let f(x)=x^2f ( x ) = x 2. Find the Riemann sum for ff on the interval [0,2][ 0 , 2 ], using 4 subintervals of equal width and t

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Answer:

$A_L=1.75$

Step-by-step explanation:

We are given:

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Note:

If it will be asked to find right endpoint too,

$A_R=\sum\limits^{n}_{i=1}\Delta xf(x_i) =\frac{1}{2}((\frac{1}{2})^2+1^2+(\frac{3}{2})^2+2^2)=\frac{15}{4}=3.75$

The average of left and right endpoint Riemann sums will give approximate result of the area under $f(x)=x^2$ and it can be compared with the result of integral of the same function in the interval given.

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