3 years ago

What expressions are equivalent to 4x-8x+12y

Mathematics

2 answers:

kotykmax [81]3 years ago

7 0

I belive it would be 12x + 12y

Elanso [62]3 years ago

6 0

You can factor this expression and the factor would still be equal to it.

So, 4(x-2x+12y)

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Find the average rate of change for f(x)=-4x² over the interval -4≤x≤-2. Enter your answer as a number. *

Soloha48 [4]

Answer:

Step-by-step explanation:

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3 years ago

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kipiarov [429]

I think it is 64. you add all of them together and hten divide it by 6.

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3 years ago

Is 3(-4y) equivalent to 6-4y

Leokris [45]

3(-4y)=6-4y

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3 years ago

X+2y=3 <br> 3y+5y=7 <br> I dont know

Lena [83]

Answer:

Step-by-step explanation:

3y+5y=8y

8y=7(divide 8 in both sides to get y)

y=7/8

x+2y=3...but we already know the value of y, so substitute 7/8 to y

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2 years ago

In ΔCDE, \overline{CE}

abruzzese [7]

Answer:

$m\angle CDE=14^o$

Step-by-step explanation:

we know that

An exterior angle of a triangle is equal to the sum of the opposite interior angles.

see the attached figure to better understand the problem

∠DEF=∠ECD+∠CDE

substitute the given values

$(4x+5)^o=(x+9)^o+(x+8)^o$

solve for x

Combine like terms

$(4x+5)^o=(2x+17)^o$

Group terms

$4x-2x=17-5$

$2x=12$

$x=6$

Find the measure of angle CDE

$m\angle CDE=(x+8)^o$

substitute the value of x

$m\angle CDE=(6+8)=14^o$

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3 years ago