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mezya [45]
3 years ago
7

4n-9=-9 Find N please WILL MARK BRAINLESS

Mathematics
2 answers:
timama [110]3 years ago
6 0
First brink the -9 over to the other side of the equal sign
4n-9=-9
+9=+9
4n=0
Second you would divide the coefficient which is 4 by both sides
4n=0
———
4 =4

N= 0
dlinn [17]3 years ago
4 0
4n - 9 = -9
     +9    +9
4n = 0
/4    /4
n = 0
does it work?  plug to find out
4(0) - 9 = -9
0-9 = -9
-9=-9
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The difference between 9 thirty sevens and 8 thirty sevens
Sergeeva-Olga [200]
9 x 37 = 333
8 x 37 = 296

333 - 296 = 37
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4 years ago
Find the area of the figure
Evgesh-ka [11]
These are the steps: 
1. Find area of the two triangles.
2. Find area of the rectangle.
3. Add them up.

<u>Step 1: Find area of the two triangles:</u>

Formula : Area of triangle = 1/2 x base x height

Both triangles are identical.
Height = 5m
Base = 6 + 6 + 12 = 24

Area = 1/2 x 24 x 5 = 60 m²

<u>Step 2: Find the area of the rectangle:</u>

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5 0
3 years ago
If f(x) = 3x2 − 8x, 0 ≤ x ≤ 3, evaluate the Riemann sum with n = 6, taking the sample points to be right endpoints.
denis23 [38]

Split up the interval [0, 3] into 6 subintervals,

[0, 1/2], [1/2, 1], [1, 3/2], [3/2, 2], [2, 5/2], [5/2, 3]

The right endpoints are given by the arithmetic sequence,

r_i=0+\dfrac i2=\dfrac i2

with 1\le i\le6.

We approximate the integral of f(x) on the interval [0, 3] by the Riemann sum,

\displaystyle\int_0^3f(x)\,\mathrm dx=\sum_{i=1}^6f(r_i)\Delta x_i

\displaystyle=\frac{3-0}6\sum_{i=1}^6\left(3{r_i}^2-8r_i\right)

\displaystyle=\frac12\sum_{i=1}^6\left(\frac{3i^2}4-4i\right)

\displaystyle=\frac38\sum_{i=1}^6i^2-2\sum_{i=1}^6i

Recall the formulas,

\displaystyle\sum_{i=1}^ni=\frac{n(n+1)}2

\displaystyle\sum_{i=1}^ni^2=\frac{n(n+1)(2n+1)}6

Then the value of the integral is approximately

\displaystyle=\frac38\cdot\frac{6\cdot7\cdot13}6-2\cdot\frac{6\cdot7}2=\boxed{-\frac{63}8}=-7.875

Compare to the exact value of the integral, -9.

7 0
3 years ago
I neeeddd helpppppp please
Marianna [84]
Not congruent is the answer
7 0
3 years ago
Find the slope of the line that contains the points (6,3) and (12,0).
777dan777 [17]
M= y2-y1/x2-x1
3-0/6-12= 3/-6= -1/2
(Slope) m=-1/2
6 0
3 years ago
Read 2 more answers
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