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wariber [46]
3 years ago
13

The volume of a cuboid is 32cm^2 Two of the lengths are 4cm and 2cm, what is the missing length?

Mathematics
2 answers:
almond37 [142]3 years ago
8 0
If you mean that the volume is 32 cm^3, then the missing length is 4 cm.

The volume of a cuboid is length * width * height.

Setting up the equation would be: 32=l(2)(4) and solving for l would equal 4 cm.
andrew-mc [135]3 years ago
5 0

Answer:

4 cm

Step-by-step explanation:

to find the volume you multiply the lengths of all three sides together:

let 'm' = missing side

32 = 4·2·m

32 = 8m

m = 4

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Let f be a functions of degree 4 whose coefficients are real numbers: two of its zeros are - 3 and 4 - i. Explain why one of the
kvasek [131]

Answer:

Step-by-step explanation:

We have the following theorem, if f is a polynomial with real coefficients, we can factor it completely in factors of the degree at most 2.

Consider first a polynomial of degree two, hence it is a polynomial of the form ax^2+bx+c. The cuadratic formula tells us that the solutions are of the form

x = \frac{-b\pm \sqrt[]{b^2-4ac}}{2a}.

Note that square root, over the reals, tells us that the are only real solutions if b^2-4ac \geq 0. If that is not the case, say it's negative, the solution are complex. Then, the solutions are of the form

x = \frac{-b \pm i \sqrt[]{4ac-b^2}}{2a}. NOte that this means that if we have a complex number of the form a+bi that is a solution, then the number a-bi (who is called the complex conjugate) is also a solution.

Recall that when we have a polynomial f(x) whose a zero is the number c, then we can factor f as follows f(x) = (x-c) * p(x) where p(x) is another polynomial of lesser degree .

So far, we know that -3 and 4-i are zeros of the function f. Note that we are missing two zeros. But, since complex numbers are zeros of polynomial only by pairs (that is the number and its conjugate are zeros), then, we must have that one of the missing 2 zeros is a real number. We have 4-i as a zero, then, its complex conjugate must be also a zero, i.e 4+i is a zero.

8 0
3 years ago
44% is equivalent to what fraction in reduced terms?
Vera_Pavlovna [14]

Answer:

44/100 will be reduced to 11/25

Step-by-step explanation:

8 0
3 years ago
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Please explain this problem. I don't know what its asking, or what to do.
matrenka [14]
The answers are x=4 and y=323/2

1) 40/2x-3=8

Multiply both sides by 2x-3 to get rid of fraction

40= 8(2x-3)

Distribute 8

40= 16x-24

Add 24 to both sides

64=16x

Divide by 16

4=x


2) 2y-3/40=8

Multiply both sides by 40 to red rod of fraction

2y-3=320

Add 3 to both sides

2y= 323

Divide by 2

Y=323/2

Now just describe the differences in solving them


FYI / means fraction, right after the slash is bottom of fraction
7 0
3 years ago
Hailey went to the market and bought 5 pounds of coffee that costs $2 a pound. She also purchased 2/3 pounds of lunch meat that
Firdavs [7]

Answer:

$16

Step-by-step explanation:

$2 x 5 = $10

1 pound = $9

2/3 = $6

10+6=16

6 0
3 years ago
Ill give brainlist just answer correct
HACTEHA [7]

Answer: no answer

Step-by-step explanation:

8 0
3 years ago
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