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Marina CMI [18]
2 years ago
13

Henri's bill at a restaurant is $19.62. He wants to leave a tip of 20%, or , of the bill. To find the exact amount of the tip, h

e should multiply the bill by ____. A good estimate for the amount of the tip is
$4.00. A good estimate for the total bill, including the tip, is
$24.00.
Mathematics
1 answer:
ratelena [41]2 years ago
3 0

Answer:

0.2

Step-by-step explanation:

19.62*0.2

Multiply by 0.2

Hope this helps plz hit the crown :D

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Step-by-step explanation:

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A circle with radius 3 has a sector with central angle 1/9 pi radians what is the area of the sector
dem82 [27]

Answer:

The area of the sector is  \frac{\pi}{2}\ units^2

Step-by-step explanation:

step 1

Find the area of complete circle

A=\pi r^2

we have

r=3\ units

substitute

A=\pi 3^2\\A=9\pi\ units^2

step 2

Find the area of the sector

we know that

The area of complete circle subtends a central angle of 2π radians

so

using proportion

Find out the area of a sector by a central angle of 1/9 pi radians

\frac{9\pi}{2\pi}=\frac{x}{\frac{1}{9}\pi} \\\\x=9\pi(\frac{1}{9}\pi})/2\pi\\\\x=\frac{\pi}{2}\ units^2

5 0
3 years ago
Write a quadratic polynomial, sum and product of whose<br> zeroes are -4 and -21 respectively.
Salsk061 [2.6K]

Answer:

x^2 -4x -21

Step-by-step explanation:

Here, we want to write a quadratic polynomial

We have the sum as -4

Let us have x as the variable

so the sum of the variables is -4x

while the product is -21 x^2

Two factors of 21 that can work here is -7x and 3x

So we have

x^2 - 7x + 3x -21

= x^2 -4x -21

6 0
3 years ago
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