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worty [1.4K]
3 years ago
7

Please, i need to answer this for tomorrow and i dont get it!

Mathematics
2 answers:
zepelin [54]3 years ago
7 0

Answer:

1.72r²

Step-by-step explanation:

total Rectangle area = 4r*2r = 8r²

total circles area = 2(π r²) = 2*3.14*r² = 6.28r²

then:

the area of the shaded region:

= 8r² - 6.28r²

= (8-6.28)r²

= 1.72r²

Sergio039 [100]3 years ago
4 0

Answer:

2r²(4 - π)

Step-by-step explanation:

The shaded area (A) is calculated as

A = area of rectangle - area of 2 circles

The rectangle has a length of 4r and a width of 2r , then

A = (4r × 2r) - (2πr²)

   = 8r² - 2πr² ← factor out 2r² from each term

    = 2r²(4 - π)

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Find three solutions of the equation.
Olegator [25]
The correct answer is a. 

You can find this by using each of the ordered pairs in the equation and seeing if the statements are true. The work for the a ordered pairs is below. 

(-2, -14)
y = 7x
-14 = 7(-2)
-14 = -14

(3, 21)
y = 7x
21 = 7(3)
21 = 21

(-4, -28)
y = 7x
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6 0
3 years ago
Solve equation 19 - h - h = -13
kati45 [8]

Answer:

h = 16

Step-by-step explanation:

to solve this equation

we are going to take cognizance of the positive and negative sign as any misinterpretation of the sign might influence our answer wrongly. Note this

negative × negative  = positive

positive × negative = negative

negative × positive = negative

positive × positive = positive

so, from the question 19 - h - h = -13

19 - h - h = -13

19 -2h = -13

collect the like terms

19 + 13 = 2h

32 = 2h

divide both sides by the coefficient of h which is 2

32/2 = 2h/2

16 = h

therefore h = 16

4 0
3 years ago
NEED HELP ASAP:
zepelin [54]

Answer:

2035.8  (approximately)

6 0
4 years ago
Read 2 more answers
Which of the following correctly describes a line.... A. A straight path that continues forever and has only one endpoint.
Andrej [43]
C. A straight path from one point to another.
3 0
4 years ago
What is the value of p?
sveta [45]

Answer:

Not C, Not A, most likely B

Step-by-step explanation:

Its less than 90 because its and acute, meaning its smaller, so you can already knock off C.

6 0
3 years ago
Read 2 more answers
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