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ivann1987 [24]
3 years ago
6

Giving thanks and brainliest for best answer <3

Mathematics
2 answers:
soldi70 [24.7K]3 years ago
8 0
D 80-99 is the answer to this
UNO [17]3 years ago
4 0
The answer is D 80-99
You might be interested in
F(x) = 4x - 3<br> g(x) = 3x - 1<br> Find (fºg)(x)
baherus [9]

Answer:

0.5 or -0.5

Step-by-step explanation:

4x - 3 = 3x - 1

-1 + 3 = 2

4x = 3x - 2

4 - 3 = 1

1x = -2 or positive 2

1x ÷ -2

-0.5 or 0.5

-----‐------------------------

4x-3 = 1

3x -1 = 0.5

f= 1

g= 0.5

1 x 0.5 = x

x= 0.5

5 0
4 years ago
In a rectangle the ratio of the length to the width is 5:2, and its perimeter is 126 centimeters.
Setler [38]
Let the length be 5x and width be 2x
Perimeter of rectangle= 2(length + bredth)
                                   = 2(5x+2x) =126
                                   ∴ 2(7x)=126
                                      14x = 126
                                          x=9
 Therefore, length = 5*9=45 
and bredth= 2*9=18
5 0
4 years ago
A ball is thrown in the air that is 48 feet above the ground with an initial vertical velocity of 32 feet per second. The height
anastassius [24]

Answer:

h(t) = -16(t - 1)² + 64

Step-by-step explanation:

The function that would best to use to identify the maximum height of the ball is the vertex form of the parabola.

The standard form of a quadratic function is  

y = ax² + bx + c

The vertex form is

y = a(x - h)² + k

where (h, k) is the vertex of the parabola.

h = -b/(2a) and k = f(h)

In your equation, h(t) = -16t^2 + 32t + 48

a = -16; b = 32; c = 48

Calculate h

h = -32/[2(-16)]

h = (-32)/(-32)

h = 1

Calculate k

k = -16(1)² + 32×1 + 48

k = -16      + 32    + 48

k =  64

So, h = 1, k = 64, a = -16

The vertex form of the equation is  h(t) = -16(t - 1)² + 64.

The graph below shows h(t) with the ball at its maximum height of 64 ft one second after being thrown.

7 0
3 years ago
2x4 + 4x3 – 30x2 = 0
liraira [26]
That equation is false.
8 + 12 - 60 = -40 , not 0
7 0
3 years ago
Find the quotient.<br> 5^-3/5^-1
Ivan

Answer:

3/35

Step-by-step explanation:

5 0
3 years ago
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