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2 years ago

Solve for the positive value of x: 2x² = 50

Mathematics

2 answers:

lara [203]2 years ago

8 0

Answer:

x=5

Step-by-step explanation:

Oksana_A [137]2 years ago

4 0

I believe that it is x=5

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How to write 1 x 100,000 + 3 x 10,000 + 9 x 1,000 + 8 x 100 + 5 x 10 + 2 x 1 in standard form

dem82 [27]

Answer:

Step-by-step explanation:

standard form is the way to write the number the simplest. this number would be...

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3 years ago

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Describe the effect an increase in i, the interest rate applied to the present value, has on the monthly payment P in the formul

Setler79 [48]

The A option is correct.

<h2>Ratio and proportion</h2>

A ratio is an ordered pair of numbers a and b, written as a/b where b does not equal 0. A proportion is an equation in which two ratios are set equal to each other.

Given

The interest rate applied to the present value has on the monthly payment P in the formula

$\rm P = PV(\dfrac{i}{1-i})^{-n}$

The effect an increase in i.

$\rm P = PV(\dfrac{i}{1-i})^{-n}\\$

on simplifying the equation, we get

$\rm P = PV(\dfrac{i}{1-i})^{-n}\\\\P = PV\dfrac{1}{(\frac{i}{1-i})^n}\\\\\\P = PV(\dfrac{1-i}{i})^{n}\\\\P = PV(\dfrac{1}{i} - 1)^{n}$

Let n be the constant, then the equation will be

$\rm P = PV(\dfrac{1}{i} - 1)^{n}\\\\\dfrac{1}{V} \propto \dfrac{1}{i}\\\\V \propto i$

It is clear that V is proportional to i.

An increase in i, the interest rate, will not change P, the monthly payment.

Thus, the A option is correct.

More about the ratio and the proportion link is given below.

brainly.com/question/165414

5 0

2 years ago

In need help in this

Lyrx [107]

Answer:

Vertex form is

$a(x - h) {}^{2} + k = y$

where (h,k) is the vertex

So our vertex form is

$a(x - 3) {}^{2} + 5 = y$

It passes through (6,0) so we have

$a(6 - 3) {}^{2} + 5 = 0$

Solve for a.

$a(3) {}^{2} + 5 = 0$

$a(9) = - 5$

$a = \frac{ - 5}{9}$

So our equation is

$- \frac{5}{9} (x - 3) {}^{2} + 5$

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2 years ago

Write a real-WORD problem that corresponds to the equation

dem82 [27]

Answer: You have 200 apples but you eat 7x and now you have a total of 95,what is X?

Step-by-step explanation:

X=105

7 X 15=105

200-105=95

(EDIT: Sorry I didn't read the question right so here's the one I remade)

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3 years ago

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What is the y-intercept of the like given by the equation below ? y=4x- 6

-Dominant- [34]

Answer:

A (0,-6)

Step-by-step explanation:

Y intercept is the point where x = 0

y = 4(0) - 6 = -6

(0,-6)

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3 years ago