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3 years ago

11

What is the least common denominator of 1/4, 1/14, 1/7

2 answers:

Tju [1.3M]3 years ago

3 0

28

(have to write more so I'm writing this)

garri49 [273]3 years ago

3 0

The least common denominator (LCD) of 1/4, 1/14,& 1/7 is 168

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Need help with this....

Yakvenalex [24]

Answer:

$\boxed{\dfrac{f(a+h)-f(a)}{h}=-3a^2-3ah-h^2}$

Step-by-step explanation:

$f(x)=-x^3+2\\\\\dfrac{f(a+h)-f(a)}{h}\\\\f(a+h)\to\text{substitute x = a + h}\\f(a)\to\text{substitute x = a}\\\\\dfrac{f(a+h)-f(a)}{h}=\dfrac{-(a+h)^3+2-(-a^3+2)}{h}\\\\\text{use}\ (x+y)^3=x^3+3x^2y+3xy^2+y^3\\\\=\dfrac{-(a^3+3a^2h+3ah^2+h^3)+2-(-a^3)-2}{h}\\\\=\dfrac{-a^3-3a^2h-3ah^2-h^3+2+a^3-2}{h}\\\\\text{combine like terms}$

$=\dfrac{(-a^3+a^3)-3a^2h-3ah^2-h^3+(2-2)}{h}\\\\=\dfrac{-3a^2h-3ah^2-h^3}{h}\\\\=\dfrac{h(-3a^2-3ah-h^2)}{h}\\\\=-3a^2-3ah-h^2$

6 0

3 years ago

Please help meeee<br><br><br>I need helpppp

xz_007 [3.2K]

Answer:

the slope is 5 i do y feel like doing the work buuut ik im right mark me as brainlyest if im right

7 0

3 years ago

Read 2 more answers

Lin's grandmother ordered needles that were 0.3125 inches. The pharmacist sent her 0.6875 inches needles. How longer were these

dybincka [34]

Answer:

0.375

Step-by-step explanation:

0.6875-0.3125 = 0.375

8 0

2 years ago

58% of what number is 29

Mandarinka [93]

Method 1:

$p\%=\dfrac{p}{100}\\\\58\%=\dfrac{58}{100}=0.58\\\\n-a\ number\\\\0.58n=29\ \ \ \ |:0.58\\\\\boxed{n=50}$

Method 2:

$\begin{array}{ccc}58\%&-&29\\100\%&-&n\end{array}\ \ \ \ \text{cross multiply}\\\\58n=2900\ \ \ \ |:58\\\\\boxed{n=50}$

6 0

3 years ago

(50 POINTS AND BRAINLIEST TO BEST)

Nana76 [90]

a) Cube area = 6a^2

a = 6(5.25)^2

5.25 * 5.25 = 27.5625 * 6 = 165.375

Rounded, thats 165.38

b) Rectangular prism area = 2(wl + hl + hw)

Lets say l = 6.8, w = 8.2, h = 10

It equals about 441.52

6 0

3 years ago