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3 years ago

See if you guys can figure this out.

Mathematics

1 answer:

Aleonysh [2.5K]3 years ago

6 0

There isn't anything there

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What is the product of i^2(2i^2-5)

Black_prince [1.1K]

Sorry this just got deleted :( ill post it again

$i^2(2i^2 - 5)$

= 7

I'm sorry I'm bad at explaining how i solved it

4 0

3 years ago

Find the height of the cylinder. A. 7.2in B. 4.8in C. 2.4in D. 14.4in

vladimir1956 [14]

Answer:

a 7.2

Step-by-step explanation:

8 0

3 years ago

What is 1/6 plus 3/8 all together

zloy xaker [14]

$\frac{1}{6} + \frac{3}{8} = \frac{1\times 4}{6\times 4} + \frac{3\times 3}{8\times 3} = \frac{4}{24} + \frac{9}{24} = \frac{9+4}{24} = \boxed{\frac{13}{24}}}$

7 0

3 years ago

How do you solve it?

Elis [28]

At heart we're being asked for a line through two points,

$(40^\circ \textrm{ C}, 355 \textrm { m/s}) \quad \textrm{and} \quad (49^\circ \textrm{ C}, 360 \textrm { m/s})$

In general the line through (a,b) and (c,d) is

$(y-b)(c-a)=(x-a)(d-b)$

Check that you understand why both (a,b) and (c,d) are on this line.

Here our indepedent variable, instead of x, is T, temperature. Our dependent variable is v, velocity. Substituting,

$(v - 355)(49 - 40) = (T - 40)(360 - 355)$

$9(v - 355) = 5(T - 40)$

$v-355 = \frac 5 9 T - \frac{200}{9}$

$v= \frac 5 9 T - \frac{200}{9} + 355$

$v= \frac 5 9 T + \frac{2995}{9}$

That's our answer; let's check it.

When T=40, v = (5/9)40 + (2995/9) = 355 good

When T=49, v= (5/9)49 + (2995/9) = 360 good

7 0

3 years ago

How do you solve 5 3/4 divided by 4 and show step by step

igomit [66]

There are various ways in which to do this problem. I'd suggest
converting 5 3/4 into an improper fraction and then dividing that improper fraction by 4:

20+3 23 1 23
------- divided by 4 is --------- * ----- = ------ (answer)
4 4 4 16

5 0

3 years ago