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3 years ago

Which is f(5) for the function -2xsquared + 2x -3

Mathematics

1 answer:

Delvig [45]3 years ago

6 0

Answer:

-43

Step-by-step explanation:

f(x) = -2xsquared + 2x -3

f(5) = -2(5)² + 2(5) -3

-2(25)+10-3

-50+10-3

-40-3=-43

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Which expression was factored completely using the GCF, if the original expression was

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Answer:

4x(x+2)

Step-by-step explanation:

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Factor 4x^4yz-16y^3z

Iteru [2.4K]

Answer:

Step-by-step explanation:

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3 years ago

charles leaves the marina and sails his boat 10° west of north for 1.5h at 18km/h. he then makes a right turn to a heading of 60

Ymorist [56]

<span>If Charles leaves the marina and sails his boat 10° west of north for 1.5h at 18km/h, then makes a right turn towards 60° east of north for 1.2h at 20km/h, he is 42 km from his starting point.</span>

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3 years ago

Find the value of x

zloy xaker [14]

Answer:

Step-by-step explanation:

EHG is a straight line so it is 180°.

You already know the value of FHG, so you can find the value of 2x.

180° = 48° + 2x

2x = 180° - 48°

= 132

x = 132° ÷ 2

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2 years ago

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I need help To find gradient and y-intercept...

suter [353]

Answer:

a) the gradient of the linear graph is: $\mathbf{\frac{-1}{3} }$

b) the y-intercept of linear graph is -1

Step-by-step explanation:

a) Find the gradient of the linear graph.

The formula used to find gradient is same as slope

$Gradient=\frac{Change \ in \ y \ coordinate}{Change \ in \ x \ coordinate}\\or\\Gradient=\frac{y_2-y_1}{x_2-x_1}$

Take any 2 points from the graph.

I will take: (-3,0) and (0,-1)

Putting values in formula and finding gradient

$Gradient=\frac{y_2-y_1}{x_2-x_1} \\Gradient=\frac{-1-0}{0-(-3)} \\Gradient=\frac{-1}{3}$

So, the gradient of the linear graph is: $\mathbf{\frac{-1}{3} }$

b) Find the y-intercept of linear graph

The y-intercept of linear graph is the value of y at the point where the line crosses the y axis.

So, in the given graph, that point is -1

So, the y-intercept of linear graph is -1

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2 years ago