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WINSTONCH [101]
3 years ago
14

Which is the most accurate way to estimate 50% of 51?

Mathematics
2 answers:
castortr0y [4]3 years ago
7 0
Multiply 0.5 x 51 which equals 25.5
Elena L [17]3 years ago
6 0
You do 51/100 into a percentage
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A certain library charges a flat fee of $5 for any overdue book for the first x days the book is overdue, and an additional fee
bearhunter [10]

Answer: 5 (x > 12) or 5 + m(12 - x) (x < 12)

Step-by-step explanation:

flat fee $5 for first x days +

m dolars per day after x days

So, if x > 12, for 12 days the fee is $5 because it is a flat fee that do not depend of the numbers of day.

But, we do not know how many days x is, so

if x < 12, a person will pay, for 12 days, the m times the difference of the days passed x:

5 + m(12-x)

6 0
4 years ago
Quizizz help pls 10 pts each brainliest guaranteed WITH A PICTURE
jeyben [28]

Answer:

9x^3-8x^2

Step-by-step explanation:

(7x^3-4x^2)+(2x^3-4x^2)

Combine 7x^3 and 2x^3 to get 9x^3.

9x^3-4x^2-4x^2

Combine 4x^2 and

9x^3-8x^2

Hope this helps.

7 0
3 years ago
A(-3,2) B(5,-4) midpoint is (1,-1)
lesya [120]
CHECK:\\\\the\ midpoint\ AB:\left(\frac{-3+5}{2};\ \frac{2-4}{2}\right)=\left(\frac{2}{2};\ \frac{-2}{2}\right)=(1;-1)\\-------------------------------\\C(x;\ y)\\\\the\ midpoint\ AC:\left(\frac{-3+x}{2};\ \frac{2+y}{2}\right)\\\\B\ is\ the\ midpoint\ AC\ then:\\\\\frac{-3+x}{2}=5\ and\ \frac{2+y}{2}=-4\\\\-3+x=10\ and\ 2+y=-8\\\\x=10+3\ and\ y=-8-2\\\\x=13\ and\ y=-10\\\\Solution:C(13;-10).
7 0
3 years ago
What is the principal square root of 25?
Sladkaya [172]

Answer:

5

Step-by-step explanation:

Square root of 25 is 5 no matter the case.

4 0
3 years ago
Read 2 more answers
Please help! i cant solve it​
3241004551 [841]

a ≈ 5.2, B ≈ 50°, C ≈ 95°

Solution:

Given data:

A = 35°, b = 7, c = 9

Using cosine law,

a^{2}=b^{2}+c^{2}-2 b c \cos A

a^{2}=7^{2}+9^{2}-2 (7)(9) \cos 35^\circ

a^{2}=49+81-126 (0.82)

a^{2}=26.68

Taking square root on both sides.

a ≈ 5.2

Using sine law,

$\frac{\sin A}{a} =\frac{\sin B}{b}

$\frac{\sin 35^\circ}{5.2} =\frac{\sin B}{7}

Multiply by 7 on both sides.

$\frac{0.5735}{5.2}\times 7 =\sin B

Switch the sides.

Sin B = 0.772

B=\sin^{-1}0.772

B ≈ 50°

Sum of all the angles of a triangle = 180°

A + B + C = 180°

35° + 50° + C = 180°

85° + C = 180°

C = 180° - 85°

C = 95°

Hence a ≈ 5.2, B ≈ 50°, C ≈ 95°.

4 0
3 years ago
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