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emmasim [6.3K]
8 months ago
11

Find the midpoint of the line segment that joins points P(-4,3) and Q(9,14)?

Mathematics
1 answer:
k0ka [10]8 months ago
7 0

Given the following points:

Point P: (-4, 3)

Point Q: (9, 14)

To be able to find the midpoint of the line segment, we will be using the following formula:

\text{ Midpoint = }\frac{x_1+x_2}{2},\frac{y_1+y_2_{}}{2}

We get,

\text{ Midpoint = }\frac{x_1+x_2}{2},\frac{y_1+y_2}{2}\text{= }\frac{(-4)+(9)_{}}{2},\frac{3_{}+14_{}}{2}\text{ = }\frac{5}{2},\frac{17}{2}

Therefore, the midpoint of the line segment is 5/2, 17/2.

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Pls help!! and explain why the answer is correct !
pochemuha

Step-by-step explanation:

-3(2x-6)+4=-6x+18+4=-6x+22

7 0
2 years ago
Find the area of the circle to the nearest whole number, if necessary!
astra-53 [7]

Answer:

The circle has an area of about 1385 square mm.

Step-by-step explanation:

Let's recall that circles have an area that can be found with the following formula:

A=\pi r^{2}

where r is the radius of the circle.

Now, focus your eyes on the circle. We are shown that the diameter of this circle is 42 mm, but we only want the radius. Since the radius is half the diameter, the radius is 21 mm. Now, we can solve for the area of the circle.

A=\pi (21)^2\\A=441\pi \\A=1385.44236...

So, to the nearest whole number, the area of the circle is 1385 square mm.

5 0
2 years ago
Use the triangle below and the given trigonometric ratio to determine which angle in the triangle below is
4vir4ik [10]
Cosine is the ratio of the adjacent side to the hypotenuse.

In short, we have this equation
cos(angle) = adjacent/hypotenuse

In the case of cos(A) = 18/19.5 we can see that
adjacent = 18
hypotenuse = 19.5

The side of 18 cm is next to angle 2, so the 18 cm side is adjacent to angle 2 (in contrast, the 7.5 cm side is the opposite leg in relation to angle 2)

So that's why the answer is angle 2
In other words, replace the '2' angle marker with 'A' to be able to write cos(A) = 18/19.5
7 0
3 years ago
The sphere area of a sphere is 200.96 square centimeters. What is the approximate volume of the sphere? Use 3.14 for pi. Round y
julsineya [31]

We are given

area of sphere is 200.96cm^2

it means that we are given surface area

so, we can use surface area formula

S=4\pi r^2

where S is surface area

r is radius

so, firstly we need to find radius or r

200.96=4\pi r^2

we can solve for r

r=3.9989cm

now, we can find volume

V=\frac{4}{3} \pi r^3

we can plug r

V=\frac{4}{3} \pi (3.9989)^3

now, we can find volume

V=267.86cm^3.............Answer

7 0
3 years ago
Shannon has 1 nickel, 2 dimes, and 5 unknown coins totaling $0.81. What kind of coins does Shannon have and how many are there o
AlekseyPX

Answer:

The 5 unknown are 1 quarter, 3 dimes, and 1 penny.

7 0
2 years ago
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