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nasty-shy [4]
3 years ago
11

Write an equation in point-slope form for the line through the given point that has the given slope (-2,-7);m=-3/2

Mathematics
1 answer:
love history [14]3 years ago
8 0

For this case we have that the point-slope equation of a line is given by:

(y-y_ {0}) = m (x-x_ {0})

Where:

m: It's the slope

(x_ {0}, y_ {0}): It is a point

We have as data that:

(x_ {0}, y_ {0}): (- 2, -7)\\m = - \frac {3} {2}

We replace:

(y - (- 7)) = - \frac {3} {2} (x - (- 2))\\(y + 7) = - \frac {3} {2} (x + 2)

Answer:(y + 7) = - \frac {3} {2} (x + 2)

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Estimate 726 Times 5
tester [92]

It's too easy just to calculate the actual value:

726 × 5 = 726 × 10/2 = 7260/2 = 3630

_____

You might estimate the value as 700 × 5 = 3500. You might estimate that to be low by 26/700 ≈ 4%, so about 140.

5 0
3 years ago
The sum of the measures of the interior angles of a polygon with n sides is
defon

ANSWER

(n - 2) \times 180 \degree

EXPLANATION

The sum of the interior angles of a triangle is 180°

We can rewrite this as:

1 \times 180 \degree = (3 - 2) \times 180 \degree = 180 \degree

The sum of interior angles of a quadrilateral is 360°

We can also rewrite this as:

2 \times 180 \degree = (4- 2) \times 180 \degree = 360 \degreeIn general an n-sided polygon has

the sum of the interior angles given by the formula:

(n - 2) \times 180

8 0
3 years ago
Tennis balls cost 7$ for a can of 3. Steve gives the cashier $40 to buy balls and receives $12 in change. How many tennis balls
Keith_Richards [23]
4 cans. 12 tennis balls.
6 0
3 years ago
On planet Zorg, a 30 kg barbell can be lifted by only exerting a force of 180N. What is the acceleration of gravity on Planet Zo
WITCHER [35]
To calculate g, we use the formula F= mg. F is given as 180N, and m is given as 30 kg, therefore:
180N = (30kg)(g)
g = 6 m.s-1.
The motion of this object would be decreased on Earth as more force would be required to lift it. If we assume g is 9.8 m.s-1 on Earth, we can calculate the force required.
F = mg
   = (30kg)(9.8 m.s-1)
   = 294 N

5 0
4 years ago
Which equation represents a circle that contains the point (-5, 3) and has a center at (-2, 1)? Distance formula: vaa -02 (x - 1
natali 33 [55]

Given:

The center of the circle = (-2,1).

Circle passes through the point (-5,3).

To find:

The equation of the circle.

Solution:

Radius is the distance between the center of the circle and any point on the circle. So, radius of the circle is the distance between the points (-2,1) and (-5,3).

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

r=\sqrt{(-5-(-2))^2+(3-1)^2}

r=\sqrt{(-5+2)^2+(2)^2}

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

On further simplification, we get

r=\sqrt{9+4}

r=\sqrt{13}

The standard form of a circle is:

(x-h)^2+(y-k)^2=r^2

Where, (h,k) is the center of the circle and r is the radius of the circle.

Substitute h=-2, k=1 and r=\sqrt{13}.

(x-(-2))^2+(y-1)^2=(\sqrt{13})^2

(x+2)^2+(y-1)^2=13

Therefore, the equation of the circle is (x+2)^2+(y-1)^2=13.

8 0
3 years ago
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