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Vsevolod [243]
2 years ago
10

The value of -9(square root) is not-3 because

Mathematics
2 answers:
love history [14]2 years ago
7 0

Answer:

A)  (-3)^{2} \neq -9

Step-by-step explanation:

Vlad [161]2 years ago
6 0

Answer:

A) is correct

Step-by-step explanation:

(-3)**2 = 9,  not equal -9

The issue is negative numbers can only be imaginary numbers. The sq root of -9 would be 3i, where i is defined as the sq root of -1.

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Can someone please help me on this one
Artemon [7]

Answer:  78.5 units^2

Step-by-step explanation:

The area of the circle is equal to pi*radius^2.

The diameter is double the radius, which means the radius is 10/2 = 5.

Therefore, the area is pi*5^2 = 25pi.

We use 3.14 for pi and we get 25*3.14 = 78.5 units^2

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2 years ago
Directions: Calculate the volume of the box in the diagram.
sleet_krkn [62]

Answer:

6cm^3

Step-by-step explanation:

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3 years ago
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In simplest radical form, what are the solutions to the quadratic equation 6 = x2 – 10x?
Marina86 [1]

we have

6 = x^{2}- 10x

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x^{2}- 10x+25=6+25

x^{2}- 10x+25=31

Rewrite as perfect squares

(x-5)^{2}=31

(x-5)=(+/-)\sqrt{31}\\ x1=5+\sqrt{31} \\ x2=5-\sqrt{31}

therefore

the answer is

the solutions are

x1=5+\sqrt{31} \\ x2=5-\sqrt{31}

7 0
3 years ago
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You have decided to purchase a car for $25,625. The credit union requires a 10% down payment and will finance the balance
swat32

Answer:

Total purchase = $28498.685

In cent = 2849868.5 cent.

Step-by-step explanation:

Given : You have decided to purchase a car for 175.13.

To find : What is the total purchase price of the car including tax, license, and title?

Solution :

Price of car = $25,625

Sales tax = 7.5% = 0.075

The total purchase price of the car including tax is

T=25625\times 0.075=\$1921.875T=25625×0.075=$1921.875

Title charges are $175.13.

The credit union requires a 10% down payment and will finance the balance with a 9% annual interest loan for 36 months.

10% down payment on price of car

25625\times 0.10=2562.525625×0.10=2562.5

25625-2562.5=23062.525625−2562.5=23062.5

The amount will be $23062.5

Now, we find the monthly payment,

Monthly payment, M=\frac{\text{Amount}}{\text{Discount factor}}M=

Discount factor

Amount

​

Discount factor D=\frac{1-(1+i)^{-n}}{i}D=

i

1−(1+i)

−n

​

Rate = 9%=0.09

i=\frac{0.09}{12}=0.0075i=

12

0.09

​

=0.0075

Time n=36 month

Now, put all the values we get,

D=\frac{1-(1+i)^{-n}}{i}D=

i

1−(1+i)

−n

​

D=\frac{1-(1+0.0075)^{-36}}{0.0075}D=

0.0075

1−(1+0.0075)

−36

​

D=\frac{1-(1.0075)^{-36}}{0.0075}D=

0.0075

1−(1.0075)

−36

​

D=\frac{0.2358}{0.0075}D=

0.0075

0.2358

​

D=31.44D=31.44

Monthly payment, M=\frac{\text{Amount}}{\text{Discount factor}}M=

Discount factor

Amount

​

M=\frac{23062.5}{31.44}M=

31.44

23062.5

​

M=733.38M=733.38

Monthly payment is $733.38

For 36 months the payment is 733.38\times 36=26401.68733.38×36=26401.68

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The total purchase price of the car including tax, license, and title

Total purchase = 1921.875 +1921.875+175.13 +$26401.68

Total purchase = $28498.685

1 dollar = 100 cent

$28498.685 = 2849868.5 cent.

Step-by-step explanation:

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