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bagirrra123 [75]

3 years ago

14

The strength of a rectangular beam varies jointly as its width and the square of its depth. If the strength of a beam 2 inches w

ide by 10 inches deep is 1000 pounds per square inch, what is the strength of a beam 4 inches wide and 8 inches deep?

1 answer:

nikdorinn [45]3 years ago

3 0

It is the comp if the Dione in to the Verdi league so get good kid lose hahahahaha I ain’t doin that work

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What is 2+4 when solving the equation problem

Amanda [17]

Answer: 8

Step-by-step explanation: A divided by 2 equals 4.

1) do inverse operation which is multiplication

2) do 2 times 4

3) that equals 8

4) now we plug it in a= 8

5) we check our work....

8/2 = 4

Yay! it fits now we know our answer a=8 is correct

4 0

3 years ago

Find the slope of the described line by x - 6y = -12

Simora [160]

Answer:

Slope <em>m</em> = 1/6

General Formulas and Concepts:

<u>Pre-Algebra</u>

Equality Properties

<u>Algebra I</u>

Standard Form: Ax + By = C

Slope-Intercept Form: y = mx + b

m - slope
b - y-intercept

Step-by-step explanation:

<u>Step 1: Define</u>

x - 6y = -12

<u>Step 2: Rearrange</u>

<em>Find slope-intercept form.</em>

Subtract <em>x</em> on both sides: -6y = -x - 12
Divide -6 on both sides: y = 1/6x + 2

<u>Step 3: Break Function</u>

<em>Identify Parts.</em>

Slope <em>m</em> = 1/6

y-intercept <em>b </em>= 2

8 0

3 years ago

Explain the steps to finding the vertex of g(x) = 3x2 + 12x + 15

RUDIKE [14]

Answer:

The vertex of this parabola, $(-2, 3)$ , can be found by completing the square.

Step-by-step explanation:

The goal is to express this parabola in its vertex form:

$g(x) = a\, (x - h)^2 + k$ ,

where $a$ , $h$ , and $k$ are constants. Once these three constants were found, it can be concluded that the vertex of this parabola is at $(h,\, k)$ .

The vertex form can be expanded to obtain:

$\begin{aligned}g(x)&= a\, (x - h)^2 + k \\ &= a\, \left(x^2 - 2\, x\, h + h^2\right) + k = a\, x^2 - 2\, a\, h\, x + \left(a\,h^2 + k\right)\end{aligned}$ .

Compare that expression with the given equation of this parabola. The constant term, the coefficient for $x$ , and the coefficient for $x^2$ should all match accordingly. That is:

$\left\lbrace\begin{aligned}& a = 3 \\ & -2\,a\, h = 12 \\& a\, h^2 + k = 15\end{aligned}\right.$ .

The first equation implies that $a$ is equal to $3$ . Hence, replace the " $a\!$ " in the second equation with $3\!$ to eliminate $\! a$ :

$(-2\times 3)\, h = 12$ .

$h = -2$ .

Similarly, replace the " $a$ " and the " $h$ " in the third equation with $3$ and $(-2)$ , respectively:

$3 \times (-2)^2 + k = 15$ .

$k = 3$ .

Therefore, $g(x) = 3\, x^2 + 12\, x + 15$ would be equivalent to $g(x) = 3\, (x - (-2))^2 + 3$ . The vertex of this parabola would thus be:

$\begin{aligned}&(-2, \, 3)\\ &\phantom{(}\uparrow \phantom{,\,} \uparrow \phantom{)} \\ &\phantom{(}\; h \phantom{,\,} \;\;k\end{aligned}$ .

8 0

3 years ago

Can u pls help me with this question asap

alexdok [17]

Between 3 and 4 cups.

Let’s find 87% of 4.
(4)(0.87)= 3.48

So in 4 cups of milk, there is 3.48 cups of water, which is between 3 and 4 cups.

6 0

3 years ago

When p is false and q is true, then p or q is _______ true

Anastaziya [24]

Answer:

sometimes

Step-by-step explanation:

always and never would not make sense since saying it is possible that it is true or false.

7 0

3 years ago