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KATRIN_1 [288]
3 years ago
14

Does someone knows what equals 12.5 please

Mathematics
2 answers:
Blababa [14]3 years ago
5 0
12 5/10 вecaυѕe ιғ yoυ тυrn тнe ғracтιon вacĸ тo a decιмal ιт woυld вe 5.0 dιvιded вy 10 woυld eqυal 12. 5
Annette [7]3 years ago
5 0
The answer is 12 5/10
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What is the slope of the line shown?<br> у<br> (-6, 7)<br> (-2, 6)<br> (2,5)<br> (6,4)<br> X
nasty-shy [4]

Answer:

The slope of the line shown is -1/4.

Step-by-step explanation:

Change in y/Change in x = - 1/4

8 0
2 years ago
Frank has a jar filled with 200 old dimes. Suppose he selects a dime from the jar without looking. There is a 20% chance that he
a_sh-v [17]

Answer: 40

Step-by-step explanation:

Given

Jar contains 200 old dimes

Chances to pick the 1960s is 20% i.e. 1960s is 20% of 200 old dimes

So, we can write

\Rightarrow \text{No of 1960s is }=20\%\ \text{of}\ 200=0.2\times 200\\\Rightarrow \text{No of 1960s is }=40

8 0
3 years ago
(a) The function k is defined by k(x)=f(x)g(x). Find k′(0).
Brut [27]

Answer:

(a) k'(0) = f'(0)g(0) + f(0)g'(0)

(b) m'(5) = \frac{f'(5)g(5) - f(5)g'(5)}{2g^{2}(5) }

Step-by-step explanation:

(a) Since k(x) is a function of two functions f(x) and g(x) [ k(x)=f(x)g(x) ], so for differentiating k(x) we need to use <u>product rule</u>,i.e., \frac{\mathrm{d} [f(x)\times g(x)]}{\mathrm{d} x}=\frac{\mathrm{d} f(x)}{\mathrm{d} x}\times g(x) + f(x)\times\frac{\mathrm{d} g(x)}{\mathrm{d} x}

this will give <em>k'(x)=f'(x)g(x) + f(x)g'(x)</em>

on substituting the value x=0, we will get the value of k'(0)

{for expressing the value in terms of numbers first we need to know the value of f(0), g(0), f'(0) and g'(0) in terms of numbers}{If f(0)=0 and g(0)=0, and f'(0) and g'(0) exists then k'(0)=0}

(b) m(x) is a function of two functions f(x) and g(x) [ m(x)=\frac{1}{2}\times\frac{f(x)}{g(x)} ]. Since m(x) has a function g(x) in the denominator so we need to use <u>division rule</u> to differentiate m(x). Division rule is as follows : \frac{\mathrm{d} \frac{f(x)}{g(x)}}{\mathrm{d} x}=\frac{\frac{\mathrm{d} f(x)}{\mathrm{d} x}\times g(x) + f(x)\times\frac{\mathrm{d} g(x)}{\mathrm{d} x}}{g^{2}(x)}

this will give <em>m'(x) = \frac{1}{2}\times\frac{f'(x)g(x) - f(x)g'(x)}{g^{2}(x) }</em>

on substituting the value x=5, we will get the value of m'(5).

{for expressing the value in terms of numbers first we need to know the value of f(5), g(5), f'(5) and g'(5) in terms of numbers}

{NOTE : in m(x), g(x) ≠ 0 for all x in domain to make m(x) defined and even m'(x) }

{ NOTE : \frac{\mathrm{d} f(x)}{\mathrm{d} x}=f'(x) }

4 0
3 years ago
3644-878 x 4 = a<br><br> a+54-21=b<br><br> a = <br> b =
Dovator [93]

the answer is supposed to be 132 at the most of a

for b it is 165

8 0
2 years ago
Read 2 more answers
HELPPPPPPPP ijendhebfuhrbfrefernf
nirvana33 [79]

Answer:

መልሱ 78 ይሆናል ግን የጎደለው መላምት ፍጥነት ነው

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
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