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3 years ago

9

Which equation finds the volume of a cube with a side length of 2n6 units?

1 answer:

Xelga [282]3 years ago

7 0

Answer:

Volume of the cube = (2n6)³

Step-by-step explanation:

Volume of a cube = L*B*H

Volume of a cube= L*L*L=L³ (since all the sides of the cube are equal.

Volume of the cube = (2n6)³

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Which expressions are equivalent to 3 1/4 - (-1/2) select all that apply

Colt1911 [192]

$3 \dfrac{1}{4} - ( - \dfrac{1}{2} ) = 3 \dfrac{1}{4} + \dfrac{1}{2} = 3 \dfrac{1}{4} + \dfrac{2}{4} = 3 \dfrac{3}{4}$

7 0

3 years ago

A new toy hits the local store. Sales (in hundreds) increase at a steady rate for several months, then decrease at about the sam

Montano1993 [528]

Answer:

Option A.

Step-by-step explanation:

It is given that, sales (in hundreds) for several months can be modeled by the function:

$S(m)=-0.625|m-8|+5$

We need to find the month in which 400 toys were sold.

Substitute S(m)=4 in the given function.

$4=-0.625|m-8|+5$

$4-5=-0.625|m-8|$

$-1=-0.625|m-8|$

$\dfrac{-1}{-0.625}=|m-8|$

$1.6=|m-8|$

Now,

$\pm 1.6=m-8$

$1.6=m-8$ or $-1.6=m-8$

$1.6+8=m$ or $-1.6+8=m$

$9.6=m$ or $6.4=m$

Approx the value to the next whole number.

$m\approx 10$ or $m\approx 7$

It means, 400 toys were sold on 7th and 10th month.

Therefore, the correct option is A.

5 0

3 years ago

Find each slope and y-intercept. Then graph each equation.

Sophie [7]

Answer:

1/2= slope

-3= y-intercept

Step-by-step explanation:

According to the formula, y=mx-b:

b= y-intercept
m= slope

6 0

3 years ago

Write the product using exponents (very easy)

goldfiish [28.3K]

Answer:

$-9^{4}$ x $x^{3}$

Step-by-step explanation:

:)

3 0

3 years ago

Read 2 more answers

Harry is trying to solve the equation y = 2x^2 − x − 6 using the quadratic formula. He has made an error in one of the steps bel

Bond [772]

He made a mistake in step #2. It seemed to be a trivial mistake because it involved signs, but it still had a great impact. Since step#2, his solution was already wrong.

Instead of
(-1)²-4(2)(-6) = 1 + 48 = 49

What he did is
(-1)²-4(2)(-6) = -1 + 48 = 47

4 0

3 years ago