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elena-s [515]
3 years ago
8

ILLL markk brainliest i promise plsss helpp

Mathematics
1 answer:
SOVA2 [1]3 years ago
8 0

Answer:

3

Step-by-step explanation:

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Find the minimum or maximum value of the function g(x)=−3x2−6x+5
polet [3.4K]

Step-by-step explanation:

g(x) = ax²+bx+c

g(x)=−3x²−6x+5

a = -3, b= -6, c = 5

since a <0 , the function has only maximum value.

=> g'(x) = 0

-6x -6 = 0

-6x = 6

x = -1

the maximum value => g(-1) =

-3(-1)²-6(-1)+5 = -3+6+5 = 9

the domain : {x | x € Real numbers}

the range : {y| y ≤ 9, y € Real numbers}

the function is increasing for x < -1

the function is decreasing for x > -1

4 0
3 years ago
PLEASE HELP ME! 22 POINTS!!!
Y_Kistochka [10]

Answer:

300 sq. cm.

Step-by-step explanation:

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5 0
3 years ago
How can I prove that a^(m+n)=a^m*a^n
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I've got it down to m+n=m*n but that doesn't seem to help.  I'm still working
7 0
3 years ago
I need help on solving these types of geometry problems! Teacher said the answer is 7 but I have to show work. Thank you!
Nikolay [14]

The vertex where the two triangles touch forms a pair of vertical angles, so that the angles on opposites sides of the vertex are congruent. You're shown that two legs of both triangles are congruent. All this tells you that the two triangles are isosceles, and furthermore that they are similar because of the congruence of their "base" angles.

This means

82^\circ=m\angle 2

\implies82=10x+12

\implies10x=70

\implies\boxed{x=7}

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3 years ago
Find the circumference of each circle. Use 3.14 or 22/7 for π. Round to the nearest tenth, if necessary.
zhuklara [117]

c \:  = \pi \:  \times diameter \\  \:  \:  \:  \:  \:  \:  =  \frac{22}{7}  \times 20 \: inches \\  =  \: 62.9 \: inches

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2 years ago
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