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3 years ago

Find the product of 10a³

Mathematics

1 answer:

svlad2 [7]3 years ago

7 0

Answer:

$1000a^3$

Step-by-step explanation:

$10a^3$ is already fully simplified.

If you meant $(10a)^3$ , then:

$(10a)^3\\10^3a^3\\1000a^3$

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One of the roots of the quadratic equation 4mnx^2 – 6m^2x – 6n^2x + 9mn = 0 (m, n ≠ 0) is a)-3m/2n b)3m/2n c)2m/3n d)-2m/3n

maxonik [38]

Answer:

$B.\ \frac{3m}{2n}$

Step-by-step explanation:

Given

$4mnx^2 - 6m^2x - 6n^2x + 9mn = 0\ (m, n \neq 0)$

Required

Calculate one of the root of the equation

$4mnx^2 - 6m^2x - 6n^2x + 9mn = 0$

Factorize

$2mx(2nx - 3m) -3n(2nx - 3m) = 0$

$(2mx - 3n)(2nx - 3m) = 0$

Split equation

$2mx - 3n = 0\ or\ 2nx - 3m = 0$

Make x the subject of formula in both expressions

$2mx = 3n\ or\ 2nx = 3m$

$x = \frac{3n}{2m}\ or\ x = \frac{3m}{2n}$

<em>From the list of given options, one of the roots of the equation is</em> $\frac{3m}{2n}$

4 0

3 years ago

The graph shows a quadratic function, f(x), and a cubic function, g(x).

DENIUS [597]

Answer:

B,c,d

Step-by-step explanation:

6 0

3 years ago

Can some help me please

Amiraneli [1.4K]

Yes I can. Help you

8 0

3 years ago

Show that in a quadrilateral ABCD, AB+BC+CD+DA<2(BD+AC)

Snezhnost [94]

Step-by-step explanation:

We know that the length of the diagonals will be more than the side.

Lets suppose the quadrilateral is a rectangle, with sides 6 and 4.

The length of a diagonal is:

√(6*6)+(4*4)

√36+16

√52

7.21(rounded off to 3 sig. fig.)

So, 6+4+6+4<2(7.21+7.21)

20< 2*14.42

20<28.84, which is true.

7 0

3 years ago

What is the answer to 7.26 x 106 ft

Diano4ka-milaya [45]

Answer:

769.56

Step-by-step explanation:

its like doing 726 times 106 then just move the decimal. and i looked it up

7 0

3 years ago