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Sonbull [250]
3 years ago
11

Find the value of the variable of Y

Mathematics
2 answers:
kipiarov [429]3 years ago
8 0

Answer:

Step-by-step explanation:

Since the two triangles are congruent, all their angles are as well.

So you can set 4y-10 = 3y+5 since they are the same angles.

Now solve the system by putting the y's on the left side and coefficients on the right side:

y=15.

kiruha [24]3 years ago
3 0

Answer:

y=5

Step-by-step explanation:

Since the two triangles are congruent to each other. Angles R and X are congruent to each other.

Set the equations to each other.

4y - 10 = 3y+5

1.) Add 10 to both sides

4y= 3y +15

2.) Subtract 3y to both sides

3y=15

3.) Divide by 3 to get y by itself

y=5

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What Is the line of reflection between pentagons PQRST and P'Q'R'S'T' ?
Sergeu [11.5K]

Answer:

A

Step-by-step explanation:

From the diagram:

  • P(-4,6)→P'(4,6);
  • Q(-7,4)→Q'(7,4);
  • R(-6,1)→R'(6,1);
  • S(-2,1)→S'(2,1);
  • T(-1,4)→T'(1,4).

The general rule of this reflection is

(x,y)→(-x,y)

and this is reflection across the y-axis. The y-axis has the equation x=0.

7 0
3 years ago
What is the area of a 120 degree sector of a circle with the radius of 15 cm? Round to the nearest square cm.
Delvig [45]

Answer:

236 cm^2

Step-by-step explanation:

Formula

Area = sector angle/360 * pi * r^2

Givens

Sector angle = 120

r = 15

Solution

Area = 120/360  * 3.14 * 15 * 15

Area = 1/3 * 3.14 * 225

Area = 235.5

Area = 236 cm^2

8 0
3 years ago
Find the volume. Round to the nearest hundredth if necessary.
noname [10]

Answer:

36 yd³

Step-by-step explanation:

The above solid shape given is a triangular prism.

The volume of triangular prism is given as ½ × base length of the triangle (b) × height of the triangle (h) × the length of the prism (l)

Base length of triangle (b) = 9 yd

Height of the triangle (h) = 2 yd

Length of the prism (l) = 4 yd

Volume = ½bhl

Volume = ½*9*2*4

Volume = 9*4

Volume of prism = 36 yd³

6 0
3 years ago
If elephant grows 3 3/4 inched a day, how many inches will it grow in 7 days?
olga nikolaevna [1]

Answer:

26.25, or 26 1/4, inches

Step-by-step explanation:

each day 3.75inches, so in 7 day, it grows 3.75 * 7 = 26.25inches

4 0
1 year ago
What 1+1 im serious but yeah just got brainly
ad-work [718]

Answer: 2 or 11 if trick question

Step-by-step explanation: just put 1 and 1 together

3 0
3 years ago
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