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3 years ago

11

PLEAAASE HELP! TON OF POINTS, ALL FREE FOR BRAINLIEST RIGHT ANSWER! GEOMETRY GUYSS

2 answers:

Amiraneli [1.4K]3 years ago

8 0

The last one
the answer is the last one because it's the rest of the triangle spun around .To answer this just draw the rest of that image full

mart [117]3 years ago

4 0

The last one because if you compare it then they will be alike

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If f(x) = 5x2 − 2x, 0 ≤ x ≤ 3, evaluate the Riemann sum with n = 6, taking the sample points to be right endpoints. R6 =

Leona [35]

Answer:

46.375

Step-by-step explanation:

Given information:

$f(x)=5x^2-2x$

where, 0 ≤ x ≤ 3.

We need to divde the interval [0,3] in 6 equal parts.

The length of each sub interval is

$\dfrac{b-a}{n}=\dfrac{3-0}{6}=0.5$

Right end points are 0.5, 1, 1.5, 2, 2.5, 3.

The value function on each right end point are

$f(0.5)=5(0.5)^2-2(0.5)=0.25$

$f(1)=5(1)^2-2(1)=3$

$f(1.5)=5(1.5)^2-2(1.5)=8.25$

$f(2)=5(2)^2-2(2)=16$

$f(2.5)=5(2.5)^2-2(2.5)=26.25$

$f(3)=5(3)^2-2(3)=39$

Riemann sum:

$\sum_{n=1}^6 f(x_n)\Delta x_n$

$Sum=[f(0.5)+f(1)+f(1.5)+f(2)+f(2.5)+f(3)]\times 0.5$

$Sum=[0.25+3+8.25+16+26.25+39]\times 0.5$

$Sum=92.75\times 0.5$

$Sum=46.375$

Therefore, the Riemann sum with n = 6 is 46.375.

6 0

3 years ago

klasskru [66]

Answer:

$\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}$

$y=0,\:x=6$

Step-by-step explanation:

Considering the system of the equations

$\begin{bmatrix}2x-7y=12\\ -x+15y=-6\end{bmatrix}$

$\mathrm{Isolate}\:x\:\mathrm{for}\:2x-7y=12$

$2x-7y+7y=12+7y$

$2x=12+7y$

Divide both sides by 2

$\frac{2x}{2}=\frac{12}{2}+\frac{7y}{2}$

$x=\frac{12+7y}{2}$

$\mathrm{Subsititute\:}x=\frac{12+7y}{2}$

$\begin{bmatrix}-\frac{12+7y}{2}+15y=-6\end{bmatrix}$

$-\frac{12+7y}{2}+15y=-6$

$\mathrm{Multiply\:both\:sides\:by\:}2$

$-\frac{12+7y}{2}\cdot \:2+15y\cdot \:2=-6\cdot \:2$

$-\left(12+7y\right)+30y=-12$

$-12+23y=-12$

$-12+23y+12=-12+12$

$23y=0$

$\mathrm{Divide\:both\:sides\:by\:}23$

$\frac{23y}{23}=\frac{0}{23}$

$y=0$

$\mathrm{For\:}x=\frac{12+7y}{2}$

$\mathrm{Subsititute\:}y=0$

$x=\frac{12+7\cdot \:0}{2}$

$x=\frac{12}{2}$

$x=6$

$\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}$

$y=0,\:x=6$

4 0

4 years ago

The Jones family is planning a vacation. They will drive from Boston, MA to Tampa, FL (total of 1,336 miles) over 4 days. They w

Zarrin [17]

Answer:

The answer is 440 miles.

Step-by-step explanation:

You add up the miles that have already been driven and subtract them from the total number of miles. this will give you 440 miles.

5 0

3 years ago

6x-27=-3x<br><br> solve for x:D

son4ous [18]

Answer:

6×-27=-3×

+3×

9/9×=27/9

×=3

7 0

3 years ago

Solve for x :<br><br>14x + 2 = 9x - 3

exis [7]

The answer for your question is x=-1

8 0

2 years ago