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3 years ago

EMERGENCY PLEASE HELP

Mathematics

2 answers:

Drupady [299]3 years ago

8 0

Answer: v(t) = 5,000(1.03)t

Step-by-step explanation:

defon3 years ago

6 0

Answer:

5150

Step-by-step explanation:

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Write the equation of the function whose graph is shown. y = (x + )2 +

Deffense [45]

Quadratic form is given in the form
$y= ax^{2}+bx+c$ , where a, b, and c are constants

We substitute the value (8, 12) and (5,3) in turn

$12= a(8)^{2}+b(8)+c$
$12=64a+8b+c$ ... Equation 1

$3=a(5)^{2}+b(5)+c$
$3=25a+5b+c$ ... Equation 2

Equation 1 - Equation 2 gives
$39a+3b=9$ , we call this Equation 3

We also know that (5, 3) is the turning point of the curve, where the value of $x$ is given by $x=- \frac{b}{2a}$
Substitute $x=5$
$5=- \frac{b}{2a}$
$10a=-b$
$b=-10a$ ... Equation 4

Substitute Equation 4 into Equation 3
$39a+3b=9$
$39a+3(-10a)=9$
$39a-30a=9$
$9a=9$
$a=1$

Now we need to work out the value of $b$ and $c$

Substitute $a=1$ back into equation 4
$-10a=b$
$-10(1)=b$
$b=-10$

Substitute $a=1$ and $b=-10$ into either equation 1 or equation 2

$64a+8b+c=12$
$64(1)+8(-10)+c=12$
$64-80+c=12$
$c=12+80-64$
$c=28$

Hence the equation of the quadratic curve is
$y= x^{2} 10x+28$

8 0

3 years ago

Read 2 more answers

Please help:Merv has two jobs. He earns a salary of $45,000 per year as an accountant and $10.50 per hour at his part-time job

Schach [20]

True false false true divided 4626÷340=13.605882353

8 0

3 years ago

What did I do wrong I really need help!!!!!!!!!!!!!!!!!!!

Leviafan [203]

In algebra it is fully possible for x to equal to zero. After you have 2x, just divide both sides by two, so it would be 2 divided by 0 and than you would have x=0 and that would be your final answer.

2x + 1 = 4x +1
-2x +1 = 1
-2x = 0
divide by -2
x=0

3 0

3 years ago

Solve using the pathagorean theorem

REY [17]

Answer:

b=45^1/2

Step-by-step explanation:

$a^2+b^2=c^2\\6^2+b^2=9^2\\b^2=81-36\\b^2=45\\b=\sqrt{45}$

4 0

2 years ago

The weekly cost (c) of manufacturing (x) number of remotes is given by the equation below. what is the cost to manufacture 2500

IRISSAK [1]

C= 2000 + 3(2500)
C= 2000 + 7,500
C= $9,500

6 0

3 years ago