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tensa zangetsu [6.8K]
3 years ago
8

Find the area of the composite area

Mathematics
1 answer:
Serggg [28]3 years ago
4 0

Answer:

39.8

Step-by-step explanation:

5 + 25 = 30

3.14 * 2.5^2 ( divide it in two since its a semi circle)

add that result with 30

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Buying with credit cards can cause major problems? true or false
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Answer:

True

Step-by-step explanation:

It's so as people who use credit cards to pay for stuff rather than regular cash end up in debt.

8 0
2 years ago
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the teacher separated her class of twenty-eight student into two group. one group has 4 more than twice as many students as the
mina [271]

For this case, the first thing we must do is define variables:

x: students of group 1

y: students of group 2

We now write the system of equations that models the problem:

x + y = 28\\y = 2x + 4

Solving the system by substitution we have:

x + (2x + 4) = 28\\3x + 4 = 28\\3x = 28-4

3x = 24

x = \frac{24}{3}\\x = 8

Then, the value of y is given by:

y = 2 (8) +4\\y = 16 + 4\\y = 20

Answer:

8 students of group 1

20 students of group 2

3 0
3 years ago
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Iki kişiden biri merdivenin 8. basamağında diğeri ise 20. ba-
Alex

Answer:

Hey bu dosnt mantıklı, İngilizce formatı var mı? anlayabilirsem yardım edebilirim.

Teşekkürler!!

Step-by-step explanation:

7 0
3 years ago
Which are the roots of the quadratic function f(b) = b2 – 75? Select two options.
beks73 [17]

Answer:

b =± 5 sqrt(3)

Step-by-step explanation:

f(b) = b^2 – 75

To find the roots set the equation equal to zero

b^2 -75 =0

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b^2 – 75+75 = 0+57

b^2 = 75

Take the square root of each side

sqrt(b^2) = ±sqrt(75)

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We know that sqrt(ac) = sqrt(a) sqrt(c)

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3 0
4 years ago
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Step-by-step explanation:

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6 0
3 years ago
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