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Lena [83]
1 year ago
6

Question content area top

Mathematics
1 answer:
bonufazy [111]1 year ago
6 0

Answer:

Let b the cost of the manicure

15% of b= 5.10$

15% × b= 5.10$

b= 5.10×100/15

b= 34$

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What is the volume of this square pyramid?
tatuchka [14]

Answer: 1296 cm³

Step-by-step explanation:

Since, the volume of a square pyramid is,

V = \frac{a^2h}{3}

Where a = side of the square base,

h = height of the pyramid,

By the given diagram,

a = 18 cm,

h = 12 cm,

Hence, the volume of the given pyramid,

V = \frac{18^2\times 12}{3}

= \frac{324\times 12}{3}

=\frac{3888}{3}

=1296 cube cm.

⇒ First option is correct.

5 0
3 years ago
Explain your reasoning for your answer above. <br><br> I’ll give brainliest !!
Juliette [100K]

Answer:

A

Step-by-step explanation:

The triangles are the same. Congruent is when all three sides are equal to each other on both triangles

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2 years ago
What are the zeros of the function f(x)=x^2-2x-15?
valkas [14]
To find the zeros of this function, we must first set the entire function equal to 0

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Since this is a quadratic function, we must use the quadratic formula, which is:

\frac{-b +/-  \sqrt{b^{2} - 4(a)(c) } }{2a}

Let's assign a, b, and c using our first function
x² means a = 1 (because it could be written as 1x²)
-2x means b = -2
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Now let's plug those in:

\frac{-(-2) +/- \sqrt{(-2)^{2} - 4(1)(-15) } }{2(1)}

which simplifies to:

\frac{2 +/- \sqrt{(4 + 60} }{2}

Simplified further:

\frac{2 +/- \sqrt{(64} }{2}
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2 +/- 4

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6 0
3 years ago
Read 2 more answers
Please help i dont understand this problem
DaniilM [7]

y=x+5

Step-by-step explanation:

The opposite of y is x axis

7 0
2 years ago
What is the radius of a circle whose equation is x2+y2−10x+6y+18=0?
Brums [2.3K]

Answer:

4

Step-by-step explanation:

center | (5, -3)

radius | 4

diameter | 8

area enclosed | 16 π≈50.2655

circumference | 8 π≈25.1327

5 0
3 years ago
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