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Yakvenalex [24]
3 years ago
6

1 1/2 as a fraction

Mathematics
1 answer:
Alik [6]3 years ago
4 0

Answer:

1.5

Step-by-step explanation:

divide 1/2 and add 1

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A ball is thrown in the air from a ledge. Its height in feet is represented by f(x) = –16(x2 – 7x – 8), where x is the number of
lbvjy [14]
f(x)=-16( x^{2} -7x-8)

is the functions that determines the height of the ball in Feet, after x seconds being thrown.

so for example to calculate how many feet above the ground in the ball 5 seconds after being thrown, we calculate f(5)

f(5)=-16( 5^{2} -7*5-8)=-16(25-35-8)=-16(-18)=288 feet

to solve our problem we need to find x such that f(x)=0

so we solve :

-16( x^{2} -7x-8)=0

x^{2} -7x-8=0

using the quadratic formula, le a=1, b=-7, c=-8

\sqrt{D} = \sqrt{ b^{2}-4ac}= \sqrt{ (-7)^{2}-4(1)(-8) }= \sqrt{49+32}= \sqrt{81}=9

so 

x_1= \frac{-b+ \sqrt{D} }{2a}= \frac{7+9}{2}= \frac{16}{2}=8

x_1= \frac{-b- \sqrt{D} }{2a}= \frac{7-9}{2}= \frac{-2}{2}=-1, which cannot be the solution to our problem.


Answer: 8 s
8 0
3 years ago
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The perimeter of a triangle is 80. side one is four times side two. side three is ten less than side one. what are the 3 sides
Free_Kalibri [48]
Let say that:
side one = A
side two = B
side three = C
And also, A+B+C = 80

Then, from that information we can get..
A=4B ; C=A-10... We can get the value of A, but we have to modified some equation.

Let, B=1/4 A.... (eq.1)
C=A-10.... (eq.2)
If we adding eq.1 and eq.2 we get:
B+C = 2A-39/4

Therefore,
A= 80 - (B+C)
A = 80 - 2A + 39/4
3A = 80 + 39/4
3A = 359/4 (Dividing both sides with 3)
A = 359/12 = 29.92
B = 1/4 A = 359/48 = 7.48
C = 359/12 - 10 = 19.92
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3 years ago
If x is a positive integer divisible by 6, and x < 60, what is the greatest possible value of x?
ASHA 777 [7]
The greatest value of x is 59
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2 years ago
Please help with simple probability question. Extra points & brainliest. Thanks in advance.
kodGreya [7K]
The answer is B) 1/3.

There are 6 faces on a rectangular prism, each of which is a rectangle.  

The area of the front and back is given by 25(8) = 200 sq. cm.
The area of the bottom and top is given by 25(4) = 100 sq. cm.
The area of the right and left is given by 4(8) = 32.

There are 2 faces out of 6 with an area that is not a multiple of 100; 2/6 = 1/3.
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WILL GIVE BRAINLIEST! (Only for the first CORRECT Answer, though)
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Answer:

Plane A will be farther because it is flying at a lower angle so it will be able to cover more ground by flying slightly more forwards than going more upwards like plane B

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