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zlopas [31]
3 years ago
14

How can Help me (a+b)^2≥4ab

Mathematics
2 answers:
irga5000 [103]3 years ago
8 0

Answer:

(a+b) ²≥4ab explanation below↓↓↓↓

Step-by-step explanation:

We know that

(a-b) ²≥0

a²-2ab+b²≥0

Move -2ab to the other side

a²+b²≥2ab

Add 2ab to both sides

a²+2ab+b²≥4ab

(a+b) ²=a²+2ab+b² therefore :

(a+b) ²≥4ab

sattari [20]3 years ago
5 0

Mark as brainlist___________________________________

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Step-by-step explanation:

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5 0
2 years ago
Solve for x, rounding to the nearest hundredth.<br> 10^3x = 98
Anna71 [15]

Answer:

see explanation

Step-by-step explanation:

10^3x=98

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8 0
3 years ago
Solve for w.<br><br> 5w + 9z = 2z + 3w<br><br> w = z<br> w = z<br> w = –2z<br> w = –7z
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Move terms with w to the left - subtract 3w from both sides

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6 0
3 years ago
Given a quadratic function in vertex form:
Alja [10]

Answer:

See below

Step-by-step explanation:

<u>Part A</u>

A vertical stretch takes place when a\cdot f(x) given that  |a| > 1

<u>Part B</u>

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<u>Part C</u>

A vertical stretch is different than a horizontal compression:

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<u>Part D</u>

A reflection across the x-axis means that the output, our y-variable, is the opposite sign. This means that all values of a must be negative such that a\cdot f(x) as mentioned in parts A and B. Also, in part C, since our scale factor is negative, the output is the only one being multiplied by the scale factor.

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2 years ago
18.) Which expression is equivalent to -6x + 7.5?
nydimaria [60]

Answer:

D

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