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Alex_Xolod [135]
3 years ago
11

Solve 4r2 – 7 = 29. a. +-6 b. +-3 c. +-4 d. +-5

Mathematics
1 answer:
SVETLANKA909090 [29]3 years ago
4 0
4r^2-7=29
+7 both sides
4r^2=36
÷4 both sides
r^2=9
square root both sides
r=+/-3 B
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Which statement about the function f(x)=|x+3| is true?
Stels [109]

The given function f(x) = |x + 3| has both an absolute maximum and an absolute minimum.

What do you mean by absolute maximum and minimum ?

A function has largest possible value at an absolute maximum point, whereas its lowest possible value can be found at an absolute minimum point.

It is given that function is f(x) = |x + 3|.

We know that to check if function is absolute minimum or absolute maximum by putting the value of modulus either equal to zero or equal to or less than zero and simplify.

So , if we put |x + 3| = 0 , then :

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±x = -3

So , we can have two values of x which are either -3 or 3.

The value 3 will be absolute maximum and -3 will be absolute minimum.

Therefore , the given function f(x) = |x + 3| has both an absolute maximum and an absolute minimum.

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5 0
8 months ago
How would you solve for the question below???<br> step by step please and thanks.
Airida [17]

Combine the two equations in the right amounts to eliminate y :

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-4x - 6y + 3x + 6y = -34 + 30

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