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san4es73 [151]
3 years ago
6

Please help!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
Sidana [21]3 years ago
7 0

Answer:

1

Step-by-step explanation:

Anything to the zero power is 1

7^0

1

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Please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
kirill [66]

Answer:

sin(x) = -sqrt2/2

tan(x) = -1

Step-by-step explanation:

Because it is between 270 and 360, sin is negative, so it is -sqrt2/2.

tan(x) is sin(x)/cos(x), so it is just -1.

6 0
3 years ago
10m^2-20m+48=0 solve by completing the square please show your work please.
sergejj [24]

Answer:

m = {-6, -4}

Step-by-step explanation:

<u><em>Subproblem 1:</em></u>

Set the factor '(6 + m)' equal to zero and attempt to solve:

Simplifying

6 + m = 0

Solving

6 + m = 0

Move all terms containing m to the left, all other terms to the right.

Add '-6' to each side of the equation.

6 + -6 + m = 0 + -6

Combine like terms: 6 + -6 = 0

0 + m = 0 + -6

m = 0 + -6

Combine like terms: 0 + -6 = -6

m = -6

Simplifying

m = -6

<u><em>Subproblem 2:</em></u>

Set the factor '(4 + m)' equal to zero and attempt to solve:

Simplifying

4 + m = 0

Solving

4 + m = 0

Move all terms containing m to the left, all other terms to the right.

Add '-4' to each side of the equation.

4 + -4 + m = 0 + -4

Combine like terms: 4 + -4 = 0

0 + m = 0 + -4

m = 0 + -4

Combine like terms: 0 + -4 = -4

m = -4

Simplifying

m = -4

6 0
3 years ago
Q10) A book was sold for Rs. 550 with a profit of 10%. What was its cost price? *​
stealth61 [152]

Answer:

CP = Rs 500

Step-by-step explanation:

Given that,

Selling price of a book, SP = Rs 550

Profit percent = 10%

We need to find the cost price of the book. The formula for profit percent is given by :

P\%=\dfrac{SP-CP}{CP}\times 100\\\\\dfrac{10}{100}=\dfrac{550-CP}{CP}\times 100\\\\\dfrac{1}{10}=\dfrac{550-CP}{CP}\\\\CP=5500-10CP\\\\CP+10CP=5500\\\\11CP=5500\\\\CP=500

So, the cost price of the book is Rs 500.

6 0
3 years ago
A local charity held a crafts fair selling donated, handmade items. Total proceeds from the sales were $1,875. A total of 95 ite
Hatshy [7]
15 x 95 = 1425 
1875 - 1425 = 450
450/25 = 18 items were sold at $25 a piece

7 0
4 years ago
Please help me, I don't understand this, I will mark brainlist 
PSYCHO15rus [73]
16.25pi

You can get this by first solving for volume of a cylender formula for the 1.5 radius of the outer shell. Then solve for a 1 radius of the inner empty portion. Then subtract the second from the first. 
8 0
4 years ago
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