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2 years ago

Which table shows a proportional relationship between x and y?

Mathematics

1 answer:

Nezavi [6.7K]2 years ago

7 0

Answer: A

Step-by-step explanation:

Each y value is half of the x value.

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What is the instantaneous rate of change of f(x)=xe^x-(x 2)e^(x-1) at x=0 ?

lozanna [386]

You have to derive for a multiplication in both terms:
=e^x+xe^x-(e^x-1 + (x-2)e^x-1) now apply distributive property in the last term:
=e^x+xe^x+e^x-1-xe^x-1 now replace each x by 0 (x=0)
=1 + 0 + e^-1 + 0 = 1+ e^-1 = 1.3679

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3 years ago

5.27 rounded to the nearest tenth

vlabodo [156]

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3 years ago

Read 2 more answers

How do you simplify this? x²y+xy² / y²+2/5 × xy

polet [3.4K]

$\huge \boxed{\mathbb{QUESTION} \downarrow}$

How do you simplify this?
x²y+xy² / y²+2/5 × xy

$\large \boxed{\mathbb{ANSWER\: WITH\: EXPLANATION} \downarrow}$

$\sf\frac{ { x }^{ 2 } y+x { y }^{ 2 } }{ { y }^{ 2 } + \frac{ 2 }{ 5 } \times xy } \\$

Factor the expressions that are not already factored.

_____

How to factorise :-

NUMERATOR $\downarrow$

$\sf \: x ^ { 2 } y + x y ^ { 2 }$

Factor out xy.

$\sf \: xy\left(x+y\right)$

DENOMINATOR $\downarrow$

$\sf{ y }^{ 2 } + \frac{ 2 }{ 5 } \times xy \\$

Factor out 1/5.

$\sf \: {\frac{1}{5}y\left(2x+5y\right)} \\$

_____

Continuing...

$\sf\frac{xy\left(x+y\right)}{\frac{1}{5}y\left(2x+5y\right)} \\$

Cancel out y in both the numerator and denominator.

$\sf\frac{x\left(x+y\right)}{\frac{1}{5}\left(2x+5y\right)} \\$

Expand the expression.

$\sf\frac{x^{2}+xy}{\frac{2}{5}x+y} \\$

This can further simplified to as $\downarrow$

$= \boxed{\boxed{\bf\frac{5x\left(x +y\right)}{2x+5y}}}$

3 0

3 years ago

Does anybody know the answer?

kirill [66]

Answer:

y+48=90

y= 90-48

y= 42

Step-by-step explanation:

by using the property

sum of two opposite interior angles of triangle is equal to exterior angle

4 0

3 years ago

Write a expression that uses partial products to multiply 8 x 64

krok68 [10]

8 x 64
=64 x 2 x 4
=128 x 2 x 2
=256 x 2
=512

3 0

3 years ago