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blagie [28]
3 years ago
8

(9r - 5 ) - ( -4r + 9 ) Can you subtract the expression

Mathematics
2 answers:
viktelen [127]3 years ago
6 0

Answer -36r^2 + 101r - 45

Step-by-step explanation:

Elis [28]3 years ago
4 0

Answer:

13R - (-14)

Step-by-step explanation:

I believe this is the right answer i really hope it is im sorry if its wrong

Have a good day!

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Solve: x=4+(4x-4)1/2
Damm [24]

Answer:

x = 10

Step-by-step explanation:

x = 4 + (4x-4) ^ (1/2)

First, we rewrite the expression:

x = 4 + (4x-4) ^ (1/2)

x = 2 (2+ (x-1) ^ (1/2))

x = 4 + 2 (x-1) ^ (1/2)

From here we get a solution for x = 10

To check it we substitute x = 10 in the expression:

10 = 4 + 2 (10-1) ^ (1/2)

10 = 4 + 2 (9) ^ (1/2)

10 = 4 + 2 (3)

10 = 4 + 6

10 = 10

Answer:

The solution is:

x = 10

8 0
3 years ago
Read 2 more answers
Write an a equation of a line that passes through (-1, 0) and (-3, -1)
harkovskaia [24]
Use ‘desmos’, just search it up
6 0
3 years ago
4. In a scale drawing, the length of a
Vaselesa [24]

Answer:

For every 1 inch on the drawing, it's 3 feet in real life.

Step-by-step explanation:

First, consider the length. The length is 6 inches on the drawing, while in actuality it is 18 feet. So every 6 inches represents 18 feet. Let's make a ratio; 6 : 18. To simplify it, divide both sides by 6; 6 : 18 = 1 : 3.

For every 1 inch on the drawing, it's 3 feet in real life.

4 0
3 years ago
Write a vector equation of the line that passes through P(4, 7) and is parallel to a = (3, 8).
love history [14]

Answer:

B

Step-by-step explanation:

(x,y) = P + (a)t

(x,y) = (4,7) + t(3,8)

(x,y) - (4,7) = t(3,8)

(x-4, y-7) = t(3,8)

4 0
3 years ago
Describe the cross section
hichkok12 [17]
The answer for the exercise is the third option, which is: Hexagon.
 The explanation is shown below:
 As you can see in the figure attached, the cross section is a polygon of six sides and six angles. Therefore, it has six vertexes. In geometry, this type of polygon is known as "Hexagon".
6 0
3 years ago
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