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3 years ago

Which of the following expressions is equivalent to the one above? 42x + 21.

Mathematics

1 answer:

stiks02 [169]3 years ago

6 0

Answer:

21(2x+1)

Step-by-step explanation:

42x+21=21(2x+1)

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Find the minimum of the data set.

Natalija [7]

Answer:

23,600.

Step-by-step explanation:

23|6

7 0

3 years ago

5 1⁄5 decimeters = centimeters

blsea [12.9K]

Answer:

$\large\boxed{5\dfrac{1}{5}\ decimeters=52\ centimeters}$

Step-by-step explanation:

$1\ dm=10\ cm\qquad\text{(1 decimeters = 10 centimeters)}\\\\\text{Therefore}\\\\5\dfrac{1}{5}\ dm=\dfrac{5\cdot5+1}{5}\ dm=\dfrac{26}{5}\ dm=\dfrac{26}{5}\cdot10\ cm=\dfrac{260}{5}\ cm=52\ cm$

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3 years ago

Find the product (3x+8)(x-4)

timurjin [86]

Answer:

3 $x^{2}$ - 4x - 32

Step-by-step explanation:

(3x+8)(x-4)

=3 $x^{2}$ -12x + 8x -32

=3 $x^{2}$ - 4x - 32

7 0

3 years ago

Read 2 more answers

What is the difference? x+5/x+2-x+1/x2+2x

Mrac [35]

Question

x+5/x+2 - x+1/x²+2x

Answer:

= (x² - 4x - 1)/[x (x+2)]

= (x² - 4x - 1)/[x² + 2x]

Step-by-step explanation:

x + 5/x + 2 - x + 1/x² + 2x

We factorise the second denominator to give us :

x + 5/x + 2 - x + 1/x(x + 2)

We find the L.C.M of both denominators which is x(x+2).

[x(x + 5)-(x + 1)] / (x (x + 2))

Expand the bracket

=[x² +5x - x -1] / [x (x + 2)]

=(x² - 4x - 1) / [x (x + 2)]

= (x² - 4x - 1)/ [x (x + 2)]

= (x² - 4x - 1) / [x² + 2x]

6 0

3 years ago

Use the appropriate compound interest formula to compute the balance in the account after the stated period of time 24,000 is in

VLD [36.1K]

We know the compound interest formula is given by

$A=P(1+\frac{r}{n} )^{nt}$

Now, we have been given that 24,000 is invested for 2 years with an APR of 6% and daily compounding. Thus, we have

$P= 24,000\\
\\
t=2\\
\\
r=0.06\\
\\
n=365$

On substituting these values in the above formula for the compound interest, we get

$A=24000\left ( 1+\frac{0.06}{365} \right )^{365\cdot 2}\\
\\
\text{On solving this, we get}\\
\\
A=27059.7$

Therefore, the balance in the account after 2 years is 27059.7

7 0

3 years ago