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Sauron [17]
3 years ago
7

If 4, m & 9 are in continued proportion. Find the value of m.​

Mathematics
1 answer:
Lerok [7]3 years ago
6 0

Answer:

M =6

Step-by-step explanation:

T2/T1=T3/T2

M/4=9/m

M^2=36

M=+ or - 6

As m is continued ignore - 6

Then get m =6

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Could anyone help with this question?
Nikitich [7]

Answer:

I just answered this question, In case you missed it, here it goes again:

Values for the coefficient in the product k:

a=b=c=d=3*10^8, so the first four boxes should be filled with the number "3"

Drop down arrow: "does"

Step-by-step explanation:

We perform all the products of wavelength time frequency indicated for the column of the quantity "k":

a=1 * 10^{-10} * 3\, * 10^{18} = 3 * 10^{-10+18} = 3 * 10^{8}=

b=1 * 10^{-1}*3*10^9=3* 10^{-1+9}=3*10^8

c=600*10^{-6}*5*10^{11}=3000*10^{-6+11}=3000*10^5=3*10^3*10^5=\\=3*10^{3+5}=3*10^8

d=4*10^{-7}*7.5*10^{14}=30.0*10^{-7+14}=30*10^7=3*10*10^7=\\=3*10^{1+7}=3*10^8

Therefore, all products of these different wavelengths and their associated frequencies render the exact same answer : 3*10^8, which means that as one of these quantities increase, the other one will decrease in the same proportion to give the same numerical answer.

This means that the two quantities are associated via inverse proportionality. As seen in the equation below, if the quantities "x" and "y" are related by inverse proportionality (shown as one equals a constant "A" divided by the other variable), their product x*y will give that constant value "A" (which in our case is 3*10^8.

x=\frac{A}{y} \\x*y=A

8 0
3 years ago
The snack table had 48 cookies displayed. After the first round of students came by, the number decreased by 25%. How many cooki
Inessa05 [86]

Answer:

36 cookies left

Step-by-step explanation:

48×.25=12

48-12=36 cookies

6 0
3 years ago
Convert minutes to hours<br> 13. 10 minutes<br> 14 40 minutes<br> 12. 15 minutes<br> I
Pie
13. 0.167
14. 0.667
15. 0.25
8 0
3 years ago
Read 2 more answers
Put these decimals in order starting with the smallest.
iVinArrow [24]

Answer:

8.008

8.018

8.088

8.808

8.88

<em><u>If this helped, please consider picking this answer as the Brainliest Answer. Thank you!</u></em>

3 0
3 years ago
Read 2 more answers
Help please would appreciate​
Anuta_ua [19.1K]

Answer:

Ah! Thank you for a little challenge!

Step-by-step explanation:

To do this, we need to first find our new lengths!

Height= 50+x

Radius= 20+x

Now, to find the Volume!

Using the volume formula for a cylinder(v=pi*r^2*h)

v=\pi(20+x)^{2}  (50+x)

So, we have our equation! let's solve!

V=\pi*(x^{2}+40x+400)(50+x)\\V=\pi(x^{3} +90x^{2}+2400x+20000)

Now, I'm guessing you had trouble with it because it looked really scary.

So what I did in the first step was expand (20+x)^2, and I used the special formula(forgot what else it was called, (a+b)^2=a^2+2ab+b^2)

Next, I multiplied the expand form of that with (50+x), and the way to do that is by multiplying each term in the parentheses with every term in the next parentheses(distributive property).

So, uh, that's it! Not very scary, just a bit of in-head math!

Hope this helps! If you want to learn more or need more help, check out Khan Academy for the "squares of binomials" or "polynomials"

8 0
3 years ago
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