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ladessa [460]
3 years ago
14

IF CORRECT I WILL GIVE BRAINLYIST

Mathematics
2 answers:
Diano4ka-milaya [45]3 years ago
8 0

Answer:

-3.75 but i would guess -3

Step-by-step explanation:

A = (-10 - 5) / (4 - 0) = -15 / 4 = -3.75

Katen [24]3 years ago
6 0

Answer:

-\dfrac{5}{4}

Step-by-step explanation:

average rate of change of function f(x) between x = a and x = b

\dfrac{f(b) - f(a)}{b - a}

Here, a = 0; f(a) = f(0) = -5; b = 4; f(b) = f(4) = -10

\dfrac{f(b) - f(a)}{b - a}

= \dfrac{-10 - (-5)}{4 - 0}

= \dfrac{-5}{4}

= -\dfrac{5}{4}

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at a certain conference of 100 people there are 29 indian women and 23 indian men. out of these indian people, 4 are doctors and
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3 0
2 years ago
(х-y)²-3(x-y) how do you factorise this equation?​
Kazeer [188]

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(x-y)(x-y-3)

Step-by-step explanation:

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Step-by-step explanation:


3 0
3 years ago
Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the temperature varies between 73 and 9
Naddika [18.5K]

Answer: After about 9.03 hours the temperature first reach 82 degrees.

Step-by-step explanation:

The sinusoidal function is given by :

y=A\sin[\omega(x-\alpha)]+C

where, A =  amplitude; \omega=\dfrac{2\pi}{period} ,  α= phase shift on the Y-axis and C = midline.

As per given,

Average daily temperature= C=\dfrac{73+97}{2}=85   [midline is average of upper and lower limit.]

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Substitute all values in sinusoidal function, we get

y=12\sin[\dfrac{\pi}{12}(x-10)]+85

Put y= 82, we get

82=12\sin[\dfrac{\pi}{12}(x-10)]+85\\\\\Rightarrow\ -3= 12\sin[\dfrac{\pi}{12}(x-10)]\\\\=\dfrac{-1}{4}= \sin[\dfrac{\pi}{12}(x-10)]\\\\\Rightarrow\ \dfrac{\pi}{12}(x-10)=\sin^{-1}(\dfrac{-1}{4})\\\\\Rightarrow\ x-10=\dfrac{12}{\pi}(\sin^{-1}(\dfrac{-1}{4}))\\\\\Rightarrow\ x=\dfrac{12}{\pi}(\sin^{-1}(\dfrac{-1}{4}))+10\\\Rightarrow\ x\approx9.03

Hence, After about 9.03 hours the temperature first reach 82 degrees.

3 0
3 years ago
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