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luda_lava [24]
3 years ago
13

BRAINIEST AND 15 POINTS HELP FAST!!!

Mathematics
1 answer:
djverab [1.8K]3 years ago
5 0

Answer:

3.44.

Step-by-step explanation:

We can see that in this square, the radii of the semicircles are 2. Using that, we can calculate that the area of each one is 6.58. Both combined is 12.56. Now, the original area of the circle was 16. 16 minus 12.56 is equal to 3.44, so the area of the shaded region is 3.44.

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Which one has a greater value the square root of 2 or 2.8
tester [92]

square root of 2.8 because its approximate form is 1.6733201 while square root of 2 is 1.4142136

6 0
3 years ago
Read 2 more answers
A plane requires 3300 gallons of fuel and 75 minutes to make a round trip to Prague, and it takes 5700 gallons
Snowcat [4.5K]

Answer:

Step-by-step explanation:

3300P + 5700S > = 94500 (thats greater then or equal to)

this one is based on the fuel

75P + 130S > = 2400 (thats greater then or equal to)

this one is based on the minutes

6 0
3 years ago
Look down below for question:
ale4655 [162]
Area of ABC : AB*AC/2

the maximum of the parabola is reached at x=-4/(2*(-1))=2 hence A is at (2,0) and B is at (2,(-2)^2+4*2+C)=(2,12+C)

C is the second root (x-intersect), which we can find :

determinant1 : D=16-4*(-1)*C=4(4+C) thus the second root is at x=\frac{-4-\sqrt{4(4+C)}}{-2}=2+\sqrt{4+C}

Hence the area of the triangle is AB*AC/2=(4+C)*(2+\sqrt{4+C}-2)/2=(4+C)\sqrt{4+C}/2=32 hence (4+C)\sqrt{4+C}=64 .

We remark that 64=16*4=16*\sqrt{16}

Hence 4+C=16 thus C=12

5 0
3 years ago
Y = 3x – 5<br> y= 1/2x + 5<br> Solve
Varvara68 [4.7K]

Answer:

(4, 7 )

Step-by-step explanation:

y = 3x - 5 → (1)

y = \frac{1}{2} x + 5 ( multiply through by 2 to clear the fraction )

2y = x + 10 → (2)

Substitute y = 3x - 5 into (2)

2(3x - 5) = x + 10 ← distribute parenthesis on left side

6x - 10 = x + 10 ( subtract x from both sides )

5x - 10 = 10 ( add 10 to both sides )

5x = 20 ( divide both sides by 5 )

x = 4

Substitute x = 4 into (1) and evaluate for y

y = 3(4) - 5 = 12 - 5 = 7

solution is (4, 7 )

3 0
3 years ago
Read 2 more answers
George’s car can drive 30 miles on 1/2 gallon of gas. How many gallons of gas will he use to drive 20 miles?
SOVA2 [1]
The best way to do this is to set up a proportion

30       20
----  = -----
0.5      x

then cross multiply and divide

20 × 0.5 = 10/30=1/3

he needs 1/3 tank of gas to drive 20 miles

I hope I've helped!
8 0
3 years ago
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