I need help With Math Exponents (click for picture )

Solve: x2 + 8x - 9 = 0 please i need it urgently

Likurg_2 [28]

Answer:

x = 1 or x = -9

Step-by-step explanation:

Solve for x over the real numbers:

x^2 + 8 x - 9 = 0

Hint: | Solve the quadratic equation by completing the square.

Add 9 to both sides:

x^2 + 8 x = 9

Hint: | Take one half of the coefficient of x and square it, then add it to both sides.

Add 16 to both sides:

x^2 + 8 x + 16 = 25

Hint: | Factor the left hand side.

Write the left hand side as a square:

(x + 4)^2 = 25

Hint: | Eliminate the exponent on the left hand side.

Take the square root of both sides:

x + 4 = 5 or x + 4 = -5

Hint: | Look at the first equation: Solve for x.

Subtract 4 from both sides:

x = 1 or x + 4 = -5

Hint: | Look at the second equation: Solve for x.

Subtract 4 from both sides:

Answer: x = 1 or x = -9

6 0

3 years ago

Which rational number is one tick mark to the right of Negative StartFraction 6 Over 4 EndFraction on the number line below?

valina [46]

We want to determine the rational number which is one tick mark to the left of =

$- 3 / 4$

If the number is to the left, it must be less than =

$- 3/4$

Since there are 4 equal spaces between each number, the numbers between -1 and 0 are =

$-1, 3/4, 2/4, 1/4, 0.$

We can then see that the number one tick to the left of =

$- 3/4$ is -1.

B.

$Goesy$

4 0

3 years ago

Read 2 more answers

3.What mathematical property is used to get the resulting

Alik [6]

Answer:

what is the condition of loss ?1)sp>mp 2)CP>sp 3) sp>CP 4)mp>spThe UN has 4 main purposesTo keep peace throughout the world;To develop friendly relations among nations;To help nations work together to improve the lives of poor people, to conquer hunger, disease and illiteracy, and to encourage respect for each other’s rights and freedoms;To be a centre for harmonizing the actions of nations to achieve these goals

Principles of United Nations

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These principles include the equality and self-determination of nations, respect of human rights and fundamental freedoms and the obligation of member countries to obey the Charter, to cooperate with the UN Security Council and to use peaceful means to resolve conflicts.

https://en.m.wikipedia.org › wiki

Chapter I of the United Nations Charter - Wikipedia

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Two principles of uno

A word where two vowels together blend their sound is a vowelrahim was getting his house build. He shared the design with his friend Anas. Anas pointed out that there were no ventilators in his house. What is your opinion Are the ventilators important? Why? What quality of Anas is evident in this case?

3 0

3 years ago

Someone please help me!

kvasek [131]

The formula for compounded interest in this type of equation is:

$A = P(1+\frac{r}{n})^{nt}$ where A is the amount at the end of the time period, P is the principal amount you start with, R is the interest rate, N is the amount of compound periods, and T is the time allotted for the money to gain interest.

P = 5000, R = 3% or 0.03, N = monthly so 12, T = 2 years

Plug in our given information into the equation:

$A = 5000(1 +\frac{.03}{12})^{12(2)} \\ A = 5000(1 + \frac{.03}{12})^{24}$

Let the calculator do the work here...

A ≈ 5308.785 which rounds to A ≈ 5308.79

Option A is your answer.

8 0

3 years ago

HELpppppppppp me plsssssssssssssssssssssssssss

Ira Lisetskai [31]

Answer:

55 yds squared

Step-by-step explanation:

Square = 20

Both rectangles = 35

Note/Disclaimer: My explanation may not help you understand, but I used the explanation area to place my notes down... I use mental math.

5 0

3 years ago