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3 years ago

Please answer and show work, tysm you'll get brainilest (i cant spell lol)

Mathematics

1 answer:

Lana71 [14]3 years ago

7 0

Solution:

Volume of prism = LBH
L = 6 m
B = 4 m
H = 2 m

Substitute the values into the expression to find the volume.

Volume of prism = LBH
=> Volume of prism = (6)(4)(2)
=> Volume of prism = 48 m³

Color yellow is correct

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zimovet [89]

Answer:

$x=\frac{1+\sqrt5}{2}$ and $x=\frac{1-\sqrt5}{2}$

and b= $\frac{5}{4}$

Step-by-step explanation:

We are given that a quadratic equation

$x^2-x-1=0$

We have to solve the equation by completing square and find the value of b.

$(x)^2-2\times x\times \frac{1}{2}+(\frac{1}{2})^2-(\frac{1}{2})^2-1=0$

$(x-\frac{1}{2})^2-\frac{1}{4}-1=0$

$(x-\frac{1}{2})^2-\frac{1-4}{4}=0$

$(x-\frac{1}{2})-\frac{5}{4}=0$

$(x-\frac{1}{2})^2-(\frac{\sqrt5}{2})^2=0$

$(x-\frac{1}{2})^2=(\frac{\sqrt5}{2})^2$

$x-\frac{1}{2}=\frac{\sqrt5}{2}$ and $x-\frac{1}{2}=-\frac{\sqrt5}{2}$

$x=\frac{\sqrt5}{2}+\frac{1}{2}=\frac{1+\sqrt5}{2}$

And $x=\frac{1}{2}-\frac{\sqrt5}{2}=\frac{1-\sqrt5}{2}$

Therefore, $x=\frac{1+\sqrt5}{2}$ and $x=\frac{1-\sqrt5}{2}$

and b= $\frac{5}{4}$

6 0

3 years ago

Is this correct? i’m bot sure if it is

charle [14.2K]

Answer: yes its correct

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3 years ago

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The graph of the function f(x) = –(x + 3)(x – 1) is shown below.

pav-90 [236]

Answer:

The function is negative for all real values of x where

x < –3 and where x > 1.

Step-by-step explanation:

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3 years ago

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rjkz [21]

Remark

Multiply both sides of the equation by 25. Then you have an equation that you have already done probably.

Step One

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(20 - t) = 4t - 75/5 3*25/5 = 75/5

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3 years ago

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