3 years ago

Given the g(x) function, what is the best estimate for the instantaneous rate of change at x=3? g(x) =x^2−2x+5

Mathematics

1 answer:

lapo4ka [179]3 years ago

7 0

Answer:

Step-by-step explanation:

g(x) = x² − 2x + 5

g'(x) = 2x − 2

g'(3) = 4

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Simplify -6.8+ (-2.71)

vova2212 [387]

Answer:

4.09

Step-by-step explanation

since negatives over power positive numbers

-6.8+(-2.71) - will simplify plus into minus

-6.8 - 2.71 - now just subtract

6.8-2.71=4.09

5 0

3 years ago

Write an equation of a circle that has the center at the origin and goes through (-3,-6)

dexar [7]

Answer:

$x^{2} +y^{2} = 45$

Step-by-step explanation:

General Equation of circle is

$(x-x_1)^{2} +(y-y_1)^{2} = r^{2}$ ----------- (1)

Here

$(x_1, y_1)= (0, 0)$

Radius r is distance from origin (x1, y1) to point (x2, y2)=(-3, -6)

$r=\sqrt{(x_2-x_1)^{2} + (y_2-y_1)^{2} }$

$r= \sqrt{(-3-0)^{2} + (-6-0)^{2} }$

$r= \sqrt{9+36}$

$r=\sqrt{45}$

Substituting values in equation (1)

$(x-0)^{2} +(y-0)^{2} =( \sqrt{45})^{2}$

$x^{2} +y^{2} = 45$

6 0

3 years ago

A bus is going to a museum 135 miles away. The bus will travel at 30 miles per hour. How long will it take the bus to get

TEA [102]

Answer:

4.5 hours

Step-by-step explanation:

distance equals rate times time, a relationship that can be solved for time:

time = distance / rate

Here the time is (135 miles) / (30 mph) = 4.5 hours

The bus requires 4.5 hours to get to the museum.

7 0

3 years ago

7th grade math help me pleasee :))

natima [27]

It’s the first one -13–16

3 0

3 years ago

A rectangle has a length that is 4 times the width, w. If the perimeter of the rectangle has a perimeter of 40

Zolol [24]

Answer: 16cm

Step-by-step explanation:

l = 4w

2l + 2w = p

2(4w) + 2w = 40

8w + 2w = 40

10w = 40

w = 4 cm

l = 4w = 4(4) = 16cm

5 0

3 years ago