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postnew [5]
3 years ago
12

Please help i will mark brainliest

Mathematics
2 answers:
Vikentia [17]3 years ago
4 0

Answer:

So I'm not going to give you the answer but

Step-by-step explanation:

for x left is - and right is +

for y down is - and up is +

barxatty [35]3 years ago
3 0

Answer:

2

Step-by-step explanation:

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A scuba diver starts 8 feet below sea level. She then dives down another 13 feet. Which expression gives her total number of fee
scoray [572]

I see this as a basic equation.

If she starts at point x, 8 feet, then goes down another 13, she is adding to the number of feet she traveled down.

So your answer would be 8+13=21

If this isn't what you needed, because I am not sure what math you are taking, let me know if I can help you more!


3 0
3 years ago
Read 2 more answers
Find the root of 11+2square30
EleoNora [17]

\\ \sf\longmapsto \sqrt{11+2^230}

\\ \sf\longmapsto \sqrt{11+4(30)}

\\ \sf\longmapsto \sqrt{11+120}

\\ \sf\longmapsto \sqrt{131}

\\ \sf\longmapsto 11.3

5 0
3 years ago
Use the given transformation to evaluate the given integral, where r is the triangular region with vertices (0, 0), (8, 1), and
Jlenok [28]
We first obtain the equation of the lines bounding R.

For the line with points (0, 0) and (8, 1), the equation is given by:

\frac{y}{x} = \frac{1}{8}  \\  \\ \Rightarrow x=8y \\  \\ \Rightarrow8u+v=8(u+8v)=8u+64v \\  \\ \Rightarrow v=0

For the line with points (0, 0) and (1, 8), the equation is given by:

\frac{y}{x} = \frac{8}{1}  \\  \\ \Rightarrow y=8x \\  \\ \Rightarrow u+8v=8(8u+v)=64u+8v \\  \\ \Rightarrow u=0

For the line with points (8, 1) and (1, 8), the equation is given by:

\frac{y-1}{x-8} = \frac{8-1}{1-8} = \frac{7}{-7} =-1 \\  \\ \Rightarrow y-1=-x+8 \\  \\ \Rightarrow y=-x+9 \\  \\ \Rightarrow u+8v=-8u-v+9 \\  \\ \Rightarrow u=1-v

The Jacobian determinant is given by

\left|\begin{array}{cc} \frac{\partial x}{\partial u} &\frac{\partial x}{\partial v}\\\frac{\partial y}{\partial u}&\frac{\partial y}{\partial v}\end{array}\right| = \left|\begin{array}{cc} 8 &1\\1&8\end{array}\right| \\  \\ =64-1=63

The integrand x - 3y is transformed as 8u + v - 3(u + 8v) = 8u + v - 3u - 24v = 5u - 23v

Therefore, the integration is given by:

63 \int\limits^1_0 \int\limits^{1}_0 {(5u-23v)} \, dudv =63 \int\limits^1_0\left[\frac{5}{2}u^2-23uv\right]^{1}_0 \\  \\ =63\int\limits^1_0(\frac{5}{2}-23v)dv=63\left[\frac{5}{2}v-\frac{23}{2}v^2\right]^1_0=63\left(\frac{5}{2}-\frac{23}{2}\right) \\  \\ =63(-9)=|-576|=576
6 0
3 years ago
Ow to do this please help I’m 10in six grade I skip don’t no why but please help
ohaa [14]
To do this, you can just multiply across. 3 times 1 equals 3 so your numerator is 3. 2 times 4 equals 8. Then, your answer would be 3/8. Hope this helps :)
4 0
3 years ago
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Tanya opened a savings account with a deposit of 550.she deposited 450 and withdrew 120.
Rasek [7]
550+450-120+720=1,600
720/1,600*100%
=720/160%
=45%
therefore, 45% of new balance
5 0
3 years ago
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