2 years ago

3x 3/5 help me please

Mathematics

2 answers:

ser-zykov [4K]2 years ago

8 0

Answer:

9/5

Step-by-step explanation:

it is because 3/1 × 3×5

so which means 9/5

lukranit [14]2 years ago

5 0

Answer:

1.8

Step-by-step explanation:

first you make the 3 3/1 then multiply 3/3 which are the numerators so that is 9 then you multiply the imaginary 1 that is under the 3 to the 5 so you get 9/5 and that simplified is 1 4/5 and then put that into a decimal is 1.8

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Consider f(x)=-(x+7)^2+4. Which of the following are true for f(x)?Check all that apply.

lisabon 2012 [21]

Answer:

A, D, F

Step-by-step explanation:

A. True, because $f(x)=-(x+7)^2+4$ represents quadratic function (the greatest power of x is 2)

B. False, because this function is quadratic, so cannot be linear

C. False. The vertex of the parabola is at point (-7,4) (see diagram)

D. True. The axes of symmetry is the line x=-7 that passes through the vertex.

E. False. The y-intercept is at point x=0 and $y=-(0+7)^2+4=-49+4=-45.$

F. True. The graph has the maximum at vertex, where $y_{max}=4.$

G. False. The graph of the parabola intersects the x-axis at two points (-9,0) and (-5,0), so x=-9 and x=-5 are two real solutions of the equation f(x)=0.