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3 years ago

Which angle is adjacent to A. B. C. D.

Mathematics

1 answer:

DaniilM [7]3 years ago

8 0

Angles A F and E should be the answer

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If you used 0.5 ml of sample and 2.5 ml of diluent what is your dilution ratio?

Vikki [24]

Answer:

1/6

Step-by-step explanation:

I think it is:

0.5/(0.5+2.5) = 0.5/3 = 1/6

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3 years ago

What is the length of segment A’B’?

Klio2033 [76]

Answer:

Step-by-step explanation:

A translation is a solid transformation. Lengths of sides and measures of angle remain equal.

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2 years ago

Suppose a change of coordinates T:R2→R2 from the uv-plane to the xy-plane is given by x=e−2ucos(5v), y=e−2usin(5v). Find the abs

anzhelika [568]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The solution is $\frac{\delta (x,y)}{\delta (u, v)} | = 10e^{-4u}$

Step-by-step explanation:

From the question we are told that

$x = e^{-2a} cos (5v)$

and $y = e^{-2a} sin(5v)$

Generally the absolute value of the determinant of the Jacobian for this change of coordinates is mathematically evaluated as

$| \frac{\delta (x,y)}{\delta (u, v)} | = | \ det \left[\begin{array}{ccc}{\frac{\delta x}{\delta u} }&{\frac{\delta x}{\delta v} }\\\frac{\delta y}{\delta u}&\frac{\delta y}{\delta v}\end{array}\right] |$

$= |\ det\ \left[\begin{array}{ccc}{-2e^{-2u} cos(5v)}&{-5e^{-2u} sin(5v)}\\{-2e^{-2u} sin(5v)}&{-2e^{-2u} cos(5v)}\end{array}\right] |$

$Let \ a = -2e^{-2u} cos(5v), \\ b=-2e^{-2u} sin(5v),\\c =-2e^{-2u} sin(5v),\\d=-2e^{-2u} cos(5v)$

$\frac{\delta (x,y)}{\delta (u, v)} | = |det \left[\begin{array}{ccc}a&b\\c&d\\\end{array}\right] |$

=> $\frac{\delta (x,y)}{\delta (u, v)} | = | a * b - c* d |$

substituting for a, b, c,d

=> $\frac{\delta (x,y)}{\delta (u, v)} | = | -10 (e^{-2u})^2 cos^2 (5v) - 10 e^{-4u} sin^2(5v)|$

=> $\frac{\delta (x,y)}{\delta (u, v)} | = | -10 e^{-4u} (cos^2 (5v) + sin^2 (5v))|$

=> $\frac{\delta (x,y)}{\delta (u, v)} | = 10e^{-4u}$

7 0

3 years ago

Help plz I've been stuck

stepladder [879]

Answer:

The answer is D. $(\frac{1}{5} )^{2}$

Step-by-step explanation:

$5^{4} *(5^{-3} )^{2}$

simplify the expression by multiplying

$5^{4} *5^{-6}$

calculate the product

$5^{-2}$

express with a positive exponent using $a^{-n} =\frac{1}{a^{n} }$

$\frac{1}{5^{2} }$

6 0

3 years ago

Read 2 more answers

-b+- square root of (b*b) -4ac/2a

Jet001 [13]

This is the quadratic formula.

7 0

3 years ago