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julsineya [31]
3 years ago
7

What is 9c+(8+3c) simplified

Mathematics
2 answers:
Yuliya22 [10]3 years ago
8 0
Distribute invisible 1
9c+8+3c
move c's together
9c+3c+8
add
12c+8
tada
Artemon [7]3 years ago
5 0
12c+8

Add 9+3=12c 
its not 12c² because you are not multiplying
then add the 8

answer: 12c+8

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Item 3 Find the distance from point $A$ to $\overleftrightarrow{XZ}$ . Round your answer to the nearest tenth. Triangle X Z A an
vovikov84 [41]

Answer:

3.2

Step-by-step explanation:

Given the coordinates

X(4, -3)

Y(2, 1.5)

A(3, 3)

Z(4,-1)

We are to find the distance from point A to XZ

First let us get the coordinate XZ

According to vector notation XZ = Z-X

XZ = (4,-1)-(4,-3)

XZ = [(4-4),-1-(-3)]

XZ = (0, 2)

Next is to find the distance from A(3, 3) to XZ(0,2) using the formula for calculating the distance between two points.

D = √(x2-x1)²+(y2-y1)²

x1 = 3, y1 = 3, x2 = 0, y2 = 2

D = √(0-3)²+(2-3)²

D = √9+1

D = √10

D = 3.16

Hence the distance from point A to XZ to nearest tenth is 3.2

4 0
3 years ago
A rectangle has a height of 3 and width of 3x^2+ 4 <br> what is the area?
Novosadov [1.4K]

Answer:

9x² + 12

Step-by-step explanation:

Area  = Length × Width

Area = 3 × (3x² + 4)

Area = 9x² + 12

5 0
4 years ago
Read 2 more answers
The equation of the line through point (- 4, 0) and parallel to the y-axis is
riadik2000 [5.3K]
The gradient of y axis is zero. Since the line is parallel to y axis, its gradient is also zero. This
y=mx+c
Where m is the gradient;
y=(0)x+c
y=c
Replacing for y and x;
0=0(-4)+c
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7 0
3 years ago
The foul lines of a baseball field intersect at home plate to form a right angle. A batter hits a fair ball such that the path o
liraira [26]

Answer:

The angle formed between the first base foul line and the path of the baseball is 63°.

Step-by-step explanation:

This is not a difficult problem. We only need to remember the measure of a right angle, which is 90°. Now, recall that the path baseball divides the right angle in two angles, and we know the measure of one of them.

In the attached figure the black lines are the foul lines of the baseball field, and the blue line is the baseball path. In green is the given angles and colored red is the wanted angle.

So, the sum of the angles α and β is 90° and we know the measure of the angle α: 27°. So,

α + β = 90° .

Then,

β = 90° - α =  90° - 27° = 63°.

5 0
3 years ago
You are given a circle of radius 6 what is the segment area of an arc that is 60 degrees
mixas84 [53]

Answer:

= 18.857 cm²

Step-by-step explanation:

The area of a segment is given by;

θ/360 × 2πr². where θ is the angle subtended by the arc to the center of the circle and r is the radius of the circle.

θ = 60, and r = 6

Therefore;

Area = 60/360 × 22/7 × 6²

        = 18.857 cm²

3 0
3 years ago
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