3 years ago

Help with geometry pls

Mathematics

1 answer:

grin007 [14]3 years ago

7 0

Answer:

Step-by-step explanation:

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If z is inversely proportional to r, and z= 32 when r=1.5, find r when z=8.

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Inversely proportional: z = k/r
k = 32 * 1.5 = 48
Plug that into equation
8 = 48/r
Multiply both sides by r
8r = 48
Divide by 8
r = 6

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3 years ago

What equation is solved by the graphed systems of equations?

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Answer:

simultaneous linear equations

Step-by-step explanation:

y=7x+3

y=x-3

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4 years ago

<img src="https://tex.z-dn.net/?f=x%5Ea%3Dy%5Eb%3Dz%5Ec%20%5C%5Cxyz%3D1%5C%5Cab%2Bbc%2Bca%3D%3F" id="TexFormula1" title="x^a=y^b

SashulF [63]

Answer:

Step-by-step explanation:

We are given:

$x^a=y^b=z^c$

xyz=1

Separating equations:

$x^a=z^c$

$y^b=z^c$

Solving the first equation for x:

$\displaystyle x=z^\frac{c}{a}$

Solving the second equation for y:

$\displaystyle y=z^\frac{c}{b}$

Substituting in

xyz=1:

$\displaystyle z^\frac{c}{a}z^\frac{c}{b}z=1$

Adding the exponents:

$\displaystyle z^{\frac{c}{a}+\frac{c}{b}+1}=1$

Since $1=z^0$ :

$\displaystyle z^{\frac{c}{a}+\frac{c}{b}+1}=z^0$

The base is z on both sides so we get rid of them:

$\displaystyle \frac{c}{a}+\frac{c}{b}+1=0$

Multiplying by ab:

bc+ac+ab=0

Reordering:

ab+bc+ca=0

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3 years ago

And economic predict that the cost of food will increase by 4% per year for the next several years use the economics prediction

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2.20•4%=0.08•100=8.8

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4 years ago

What is the least possible number the card can show?

Hitman42 [59]

Joker if ur talking about those kind

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3 years ago