The sum of -3 1/3b + b

Mathematics

1 answer:

vampirchik [111]4 years ago

6 0

-3 1/3 is -10/3. B is the same as 1b so you can change it to 3/3b. -10/3+3/3b is -7/3b

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GREYUIT [131]

X = -1!
1. Factor out 2 from the expression : 2(x-5) / 4 = 3x
2. Reduce the fraction with 2 : x-5 / 2 = 3x
3. Multiply both sides of the equation by 2 : x-5=6x
4. Move the terms : x - 6x = 5
5. Collect like terms : -5x = 5
6. Divid both sides by -5
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8 0

3 years ago

A bridge is sketched in the coordinate plane as a parabola represented by the equation h=40-0.01x2, where h refers to the height

ElenaW [278]

Answer:

The length of the bridge is 126.492 feet.

Step-by-step explanation:

Let $h(x) = 40-0.01\cdot x^{2}$ , where $x$ is the position from the middle of the bridge, measured in feet, and $h(x)$ is the height of the bridge at a location of x feet, measured in feet. In this case, the length of the bridge is represented by the distance between the x-intercepts of the parabola, which we now find by factorization:

$40-0.01\cdot x^{2} = 0$ (Eq. 1)

$x^{2} = \frac{40}{0.01}$

$x =\pm \sqrt{\frac{40}{0.01} }$

$x = \pm 63.246\,ft$

Given that the parabola is symmetrical with respect to y-axis, then the length is two times the magnitude of the value found above, that is:

$l = 2\cdot (63.246\,ft)$

$l = 126.492\,ft$

The length of the bridge is 126.492 feet.

3 0

3 years ago

Please help. No tricks or anything. Just an answer.

ladessa [460]

Answers:
The first five terms are: 3, 8, 13, 18, 23
This is a linear sequence

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Explanation:

Plug in n = 1 to get the first term
E(n) = 5*n-2
E(1) = 5*1-2
E(1) = 3
So 3 is the first term

Do the same for n = 2 to get the second term
E(n) = 5*n-2
E(2) = 5*2-2
E(2) = 8
So 8 is the second term

And again for n = 3
E(n) = 5*n-2
E(3) = 5*3-2
E(3) = 13
This means 13 is the third term

And again for n = 4
E(n) = 5*n-2
E(4) = 5*4-2
E(4) = 18
This means 18 is the fourth term

Finally, repeat for n = 5
E(n) = 5*n-2
E(5) = 5*5 - 2
E(5) = 23
So 23 is the fifth term

This sequence is linear because we're incrementing by the same amount each time. In this case, we're adding 5 each time for the sequence 3, 8, 13, 18, 23, and so on.

4 0

3 years ago

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elixir [45]

Answer: let's B ( sorry if i get it wrong but i tried)

Step-by-step explanation:

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3 years ago

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aleksandrvk [35]

Answer:

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