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kondor19780726 [428]

3 years ago

14

Two cubical boxes of side a cm are placed next to one another to form a cuboid. The total surface area of the cuboid so formed i

s?

1 answer:

dexar [7]3 years ago

7 0

Answer: 60

Step-by-step explanation:

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F(x)=-4x^2+7x+6 how do you work this

Ainat [17]

There actually isn't anything to 'work'. There's no question there.

The function simply describes the relationship between two numbers.

It says that whatever you pick for the first number, the second number is

(-4 times the square of the first one) plus (7 times the first one) plus (6) .

Your teacher may have assigned you something to do with the function,
like draw the graph of it, or find its maximum value (2.9375), or find where
it crosses the x-axis (2.381 and -0.63) or the y-axis (6).

But we can't tell what you've been assigned to do with it. The function alone,
just as you've posted it, isn't asking a question, and doesn't call for any work.

7 0

3 years ago

NEED HELP ASAP!!!!! PLEASE HELP ME

mina [271]

ANSWER

X = -9

EXPLANATION: you subtract 180 - 70 giving you 110

Equation set up: x + 49 + x + 79 = 110

7 0

3 years ago

Read 2 more answers

nickel has an approximate diameter of 20 mm and an approximate thickness of 2 mm what is the approximate volume of a stack of 40

ziro4ka [17]

Answer:

The approximate volume of a stack of 40 nickels is 25132.741 cubic milimeters.

Step-by-step explanation:

A nickel can be modelled by the formula of a right cylinder, the approximate volume of the stack of nickels ( $V_{net}$ ), measured in cubic milimeters, is the product of the number of elements ( $n$ ), no unit, and the volume of each element ( $V$ ), measured in cubic milimeters. That is:

$V_{net} = n\cdot V$ (1)

By volume equation of right cylinder, we have the following formula:

$V_{net} = \frac{\pi}{4}\cdot n \cdot D^{2}\cdot h$ (2)

Where:

$n$ - Amount of nickels, no unit.

$D$ - Diameter of nickel, measured in milimeters.

$h$ - Thickness of nickel, measured in milimeters.

If we know that $n = 40$ , $D = 20\,mm$ and $h = 2\,mm$ , then the net volume of the stack of nickels is:

$V_{net} = \frac{\pi}{4}\cdot (40)\cdot (20\,mm)^{2}\cdot (2\,mm)$

$V_{net} \approx 25132.741\,mm^{3}$

The approximate volume of a stack of 40 nickels is 25132.741 cubic milimeters.

8 0

2 years ago

Which equation shown below models the relationship between hand t shown the graph?

Novay_Z [31]

Answer:

h=3t+12

Step-by-step explanation:

C

4 0

2 years ago

NEED THIS ASAPGraph each inequality

Usimov [2.4K]

Answer: <em>here are the graphs. the one with the sloped line is </em>5x - 3y ≤ -15.<em> the one with the straight line is </em>y ≥ 4.

3 0

2 years ago