3 years ago

If dab=125 what is the measure of cba justify your reasoning

Mathematics

1 answer:

KonstantinChe [14]3 years ago

8 0

The answer is D. x=y-z-9/7

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Brandon and his children went into a bakery and where they sell donuts for $1.25

barxatty [35]

Answer:

Step-by-step explanation:

Since cookies are $.25 each, and Brandon purchased only 2, you can conclude he has already spent $.50.

If you deduct that from the total, $5.50, you have $5 left. Divide the cost of the donuts, $1.25, and the total to get the answer of 4.

3 0

3 years ago

Read 2 more answers

..vertex: (4, -1) f(3) = -6

s344n2d4d5 [400]

Answer:

$\huge\boxed{f(x)=-5(x-4)^2-1=-5x^2+40x-81}$

Step-by-step explanation:

The vertex form of an equation of a parabola:

$f(x)=a(x-h)^2+k$

$(h;\ k)$ - vertex

We have

vertex $(4;\ -1)\to h=4;\ k=-1$

$f(3)=-6$

Therefore we have:

$f(x)=a(x-4)^2+(-1)=a(x-4)^2-1$

Substitute $x=3$ and $f(3)=-6$

$a(3-4)^2-1=-6\qquad|\text{add 1 to both sides}\\\\a(-1)^2=-6+1\\\\a(1)=-5\\\\a=-5$

Finally:

$f(x)=-5(x-4)^2-1=-5(x^2-2(x)(4)+4^2)-1\\\\=-5(x^2-8x+16)-1=-5x^2+(-5)(-8x)+(-5)(16)-1\\\\=-5x^2+40x-80-1=-5x^2+40x-81$

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3 years ago

Is x+2 a factor of 3x^4+7x^3+3x^2-x-4?

Serhud [2]

Lets check by putting x= - 2
3x^4+7x^3+3x^2-x-4=0
3(-2)^4+7(-2)^3+3(-2)^2+2-4=0
3*16-56+12-2=0
48-56+10=
2=0 No
x+2 is not a factor

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3 years ago

A number decreased by the sum of the number and four

ira [324]

A number decreased by the sum of the number and four
is -4

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3 years ago

Idk what to do can someone help?

dolphi86 [110]

She will rent 12 cages

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