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4 years ago

Whats the value of the expression 10x(2.5+13.5)=

Mathematics

2 answers:

4vir4ik [10]4 years ago

8 0

2.5+13.5=16
16x10=160

taurus [48]4 years ago

5 0

The value of the expression is 38.5

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4 years ago

Given that F(x) = cos2(x + 9), find functions f,g and h such that F = fogoh

Vesna [10]

Answer:

The functions $f(x)$ , $g(x)$ and $h(x)$ such that $F(x) = f\,\circ\,g\,\circ \,h (x)$ are $f(x) = x^{2}$ , $g(x) = \cos x$ and $h(x) = x+9$ , respectively.

Step-by-step explanation:

Let $F(x) = \cos ^{2}(x+9)$ , if $F(x) = f\,\circ\,g\,\circ \,h (x)$ , then we derive $f(x)$ , $g(x)$ and $h(x)$ by using the following approach:

1) $F(x) = \cos ^{2} (x+9)$ Given

2) $f\,\circ\,g(x) = \cos^{2} x$ Definition of function composition/ $h(x) = x+9$

3) $f(x) = x^{2}$ Definition of function composition/ $g(x) = \cos x$

4) $f(x) = x^{2}$ , $g(x) = \cos x$ , $h(x) = x+9$ From 2) and 3)/Result

The functions $f(x)$ , $g(x)$ and $h(x)$ such that $F(x) = f\,\circ\,g\,\circ \,h (x)$ are $f(x) = x^{2}$ , $g(x) = \cos x$ and $h(x) = x+9$ , respectively.

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3 years ago

Isosceles and Equilateral triangles question! 60 POINTS!!

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Answer:

a = 43

Step-by-step explanation:

If PQ = PR, then P = R

The sum of the angles of a triangle is 180

P+Q+R = 180

47+2a + 47 = 180

Combine like terms

94 + 2a = 180

Subtract 94 from each side

2a = 180-94

2a = 86

Divide by 2

2a/2 = 86/2

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