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2 years ago

What is the standard form for graphs of y-5=4/5(x-30)

Mathematics

1 answer:

hodyreva [135]2 years ago

3 0

Answer:

y=0.8*x -19

Step-by-step explanation:

y-5=4/5(x-30)

5*(y-5)=5*(4/5(x-30))

5y-25=4x-120

5y=4x-120+25

5y=4x-95

y=(4/5)*x -19

y=0.8*x -19

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HELP PLZ I GIVE BRAINLEST FIRST COME FIRST SERVE GOD BLESS YOU

storchak [24]

Answer:

x= $\sqrt{6}$

Step-by-step explanation:

subtarct 2 t the other side

2x^2=12

now divide 2 to 12

x^2= 6

now square root both sides

x= $\sqrt{6}$

thats the answer!

4 0

3 years ago

Read 2 more answers

Modeling Radioactive Decay In Exercise, complete the table for each radioactive isotope.

Travka [436]

Answer :

The amount after 1000 years will be, 5.19 grams.

The amount after 10000 years will be, 0.105 grams.

Step-by-step explanation :

Half-life = 1599 years

First we have to calculate the rate constant, we use the formula :

$k=\frac{0.693}{t_{1/2}}$

$k=\frac{0.693}{1599\text{ years}}$

$k=4.33\times 10^{-4}\text{ years}^{-1}$

Now we have to calculate the amount after 1000 years.

Expression for rate law for first order kinetics is given by:

$t=\frac{2.303}{k}\log\frac{a}{a-x}$

where,

k = rate constant = $4.33\times 10^{-4}\text{ years}^{-1}$

t = time passed by the sample = 1000 years

a = initial amount of the reactant = 8 g

a - x = amount left after decay process = ?

Now put all the given values in above equation, we get

$1000=\frac{2.303}{4.33\times 10^{-4}}\log\frac{8}{a-x}$

$a-x=5.19g$

Thus, the amount after 1000 years will be, 5.19 grams.

Now we have to calculate the amount after 10000 years.

Expression for rate law for first order kinetics is given by:

$t=\frac{2.303}{k}\log\frac{a}{a-x}$

where,

k = rate constant = $4.33\times 10^{-4}\text{ years}^{-1}$

t = time passed by the sample = 10000 years

a = initial amount of the reactant = 8 g

a - x = amount left after decay process = ?

Now put all the given values in above equation, we get

$10000=\frac{2.303}{4.33\times 10^{-4}}\log\frac{8}{a-x}$

$a-x=0.105g$

Thus, the amount after 10000 years will be, 0.105 grams.

4 0

3 years ago

Please help me answer this I don't understand, I would really appreciate how you solved it as well.

abruzzese [7]

Answer: Parallel

Step-by-step explanation:

Set your -2x+10y=5 equation equal to y

-2x+10y=5

-10y -10y

-2x=5-10y

-5 -5

-2x-5+-10y

-10 -10 -10

-1/5x-1/2=y

Now you can put your equations into your graphing calculator and examine the lines made

(if you dont have one search up online graphing calculator on google or your app store)

5 0

3 years ago

each side of an equilateral triangle measures 32 centimeters, as shown. What is the approximate height h of the triangle?

Neko [114]

32 square root 6
use the pythagoream theorum
the sides would be 32 and 16. 16^2+x^2=32^2

4 0

2 years ago

COMPLETING THE SQUARE X^2– 2x +

Studentka2010 [4]

Answer:

x^2 -2x + 1

Step-by-step explanation:

Think of a quadratic equation as

ax^2 + bx + c

x^2 -2x +

Comparing the two equations

a = 1 , b = -2, c = ?

c becomes the missing part

Divide b by 2

-2/2 = -1

square the result

-1^2

= 1 this is what to add to get a perfect square

x^2 -2x + 1

(x - 1)^2

6 0

3 years ago

What is the standard form for graphs of y-5=4/5(x-30)​

What is the standard form for graphs of y-5=4/5(x-30)