3 years ago

How do go math lesson 2.5 3rd grade?

Mathematics

2 answers:

ryzh [129]3 years ago

7 0

Is this a question of where it is in a book?

Or of a math problem?

schepotkina [342]3 years ago

5 0

Send a picture of it ok then i answer

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What is the rate of change for 2y+3=3x

Elenna [48]

The rate of change in z at (4,9) as we change x but hold y fixed is = 3/[2sqrt(3x+2y)] put x = 4 , y = 9 = 3/[2sqrt(12+18) = 3/[2sqrt(30)] The rate of change in z at (4,9) as we change y but hold x fixed is = 1/sqrt(3x+2y) put x = 4, y =9 = 1/sqrt(30)

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3 years ago

The figure below shows a trapezoid, ABCD, having side AB parallel to side DC. The diagonals AC and BD intersect at point O.

Elan Coil [88]

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3 years ago

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15y^-11/3y^-11, show steps I need help please don't understand how to do it.

tester [92]

One may note, you never quite asked anything per se, ahemm, if you meant simplification.

$\bf \left.\qquad \qquad \right.\textit{negative exponents}\\\\
a^{-{ n}} \implies \cfrac{1}{a^{ n}}
\qquad \qquad
\cfrac{1}{a^{ n}}\implies a^{-{ n}}
\qquad \qquad 
a^{{{ n}}}\implies \cfrac{1}{a^{-{{ n}}}}\\\\
-------------------------------\\\\
\cfrac{15y^{-11}}{3y^{-11}}\implies \cfrac{15}{3}\cdot \cfrac{y^{-11}}{y^{-11}}\implies 5\cdot y^{-11}\cdot y^{+11}\implies 5\cdot y^{-11+11}
\\\\\\
5y^0 \implies \boxed{5}$

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3 years ago

Please helpppppp meeeeeee

m_a_m_a [10]

The pictures won’t load for some reason

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3 years ago

What is the sine value of pi over 6?

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The value of sin (pi/6) is 1/2

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