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sergey [27]
2 years ago
5

Help i need an answer please dont answer if you are not positive

Mathematics
1 answer:
spayn [35]2 years ago
5 0
What is the area of the shaded region and the circle inside?

r=20,1m+13,2m=33,3m
A_1=\pi r^2
A_1=33,3^2\pi
A_1=1108,89\pi

What is the area of the circle inside?

A_2=20,1^2\pi
A_2=404,01\pi

What is the area of the shaded region?

1108,89\pi -404,01\pi =704,88\pi
704,88\pi \approx 704,88*3,14\approx 2213,3232\approx \underline{2213,32}

The answer: 2213,32 :)
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If x = –3 is the only x-intercept of the graph of a quadratic equation, which statement best describes the discriminant of the e
kompoz [17]
\text{ if } \Delta=0\text{ then there is one x-intercept : }x=-\dfrac{b}{2a}\\\\
\text{ if } \Delta\ \textless \ 0\text{ then there are no x-intercept : } x=\varnothing\\\\
\text{ if } \Delta>0\text{ then there are two x-intercept : }x_1,x_2=\dfrac{-b\pm\sqrt{\Delta}}{2a}\\\\

<u>Answer </u>: <span>The discriminant is 0</span>
5 0
3 years ago
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On a certain hot​ summer's day, 645 people used the public swimming pool. The daily prices are $1.75 for children and $2.50 for
VladimirAG [237]

Answer:

327 children and 318 adults

Step-by-step explanation:

The x be the amount of children and y be the amount of adults that were at the swimming pool. We can use this to set up a system of equations:

x+y=645

1.75x+2.50y=1367.25

Move y to the other side in the first equation to isolate x and solve the system using substitution:

x=645-y

  1.75(645-y)+2.50y=1367.25

Distribute

1128.75-1.75y+2.50y=1367.25

         1128.75+0.75y=1367.25

Subtract 1128.75 from both sides

                        0.75y=238.5

Divide both sides by 0.75

                                y=318

x=645-y

x=645-318

x=327

327 children and 318 adults swam at the pool that day

4 0
2 years ago
A case of 8 items costs $9.44 at Costco. What is the price of each item?
Anarel [89]

Answer: $1.18 per item

Step-by-step explanation:

9.44/8=$1.18 per item

5 0
1 year ago
What is the x and y intercept for 4x-5y=-20
yuradex [85]
X intercept is when y = 0 so 4x = -20, x=-5 
y intercept when x = 0 so -5y = -20, y=4
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3 years ago
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9.3x10^7 - 3.4x10^6=
Salsk061 [2.6K]
Loook on google and find the answers
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