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3 years ago

Change 9 2/5 into an improper fraction

Mathematics

1 answer:

Rzqust [24]3 years ago

8 0

Answer:

below

Step-by-step explanation:

9 2/5 = [(9*5)+2]/5=(45+2)/5=47/5

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Use gcf and the distributive property to write equivalent expressions in factored form for 4d+12e

KiRa [710]

So distributive=ab+ac=a(b+c)
so

find the gcf of 4 and 12
4=2 time 2
12=2 times 2 times \3

the gcf is 2 times 2 =4
4(d+3e)

7 0

4 years ago

Please answer this!!

hammer [34]

Answer:

Step-by-step explanation:

tan equal to (opposite side) /(adjacent side)

am not able to write root 3 on phone but its something like this

(a¤3)/a

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3 0

3 years ago

A suspension bridge with weight uniformly distributed along its length has twin towers that extend 85 meters above the road surf

Dmitry_Shevchenko [17]

Answer:

The required height of the cable is 21.25 meter

Step-by-step explanation:

Consider the provided information.

A suspension bridge with weight uniformly distributed along its length has twin towers that extend 85 meters above the road surface and are 800 meters apart.

Let the road surface is the x-axis, and the point (0,0) represents the point that is on the road surface midway between the two towers.

Now it will form an upward parabola whose vertex is at (0,0), one on either side of vertex at a distance x= 400 or x= -400, and y for each of these points is 85.

The equation of parabola is: $y=ax^2$

Substitute (400,85) in above formula

$85=a(400)^2$

$\frac{85}{160000}=a$

Therefore, the required equation is $y=\frac{85}{160000}x^2$

We need to Find the height of the cables at a point 200 meters from the center.

So substitute x=200 in above equation.

$y=\frac{85}{160000}(200)^2$

$y=\frac{85}{160000}(40000)$

$y=\frac{85}{4}$

$y=21.25$

Hence, the required height of the cable is 21.25 meter

5 0

3 years ago

The vertex of this parabola is at (2, -4). When the y-value is -3, the x-value is -3. What is the coefficient of the squared ter

lyudmila [28]

Answer:

The squared term is 1/25

Step-by-step explanation:

The parabola equation in the vertex form is

$y = a \times (x - h)^2 + k$

where point (h,k) is the vertex and a is the squared term. In this case h = 2 and k = -4. On the other hand, we know that y = -3 and x = -3 are in the parabola. Replacing these values in the formula gives

$-3 = a \times (-3 - 2)^2 - 4$