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polet [3.4K]
4 years ago
11

I’m stuck!!! Please help

Mathematics
2 answers:
ludmilkaskok [199]4 years ago
4 0

Answer:

I can not see it properly

Step-by-step explanation:

Sidana [21]4 years ago
3 0

Answer:

D. 2.1 + 2x = 7.5

Step-by-step explanation:

The perimeter of a polygon is the sum of the lengths of all sides.

The sides here measure x, x, and y.

The perimeter of the triangle is x + x + y.

We are told the perimeter is 7.5

Now we have

x + x + y = 7.5

or

2x + y = 7.5

We are told y = 2.1, so we substitute 21.1 for y, and we get:

2x + 2.1 = 7.5

or

2.1 + 2x = 7.5

Answer: D. 2.1 + 2x = 7.5

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Prove ΔPAB is isosceles.
Licemer1 [7]

Answer:

See explanation

Step-by-step explanation:

If PX\cong PY, then triangle PXY is isosceles triangle. Angles adjacent to the base XY of an isosceles triangle PXY are congruent, so

\angle 1\cong \angle 2

and

m\angle 1=m\angle 2

Angles 1 and 3 are supplementary, so

m\angle 3=180^{\circ}-m\angle 1

Angles 2 and 4 are supplementary, so

m\angle 4=180^{\circ}-m\angle 2

By substitution property,

m\angle 4=180^{\circ}-m\angle 2=180^{\circ}-m\angle 1=m\angle 3

Hence,

\angle 3\cong \angle 4

Consider triangles APX and BPY. In these triangles:

  • PX\cong PY - given;
  • \angle 5\cong \angle 6 - given;
  • \angle 3\cong \angle 4 - proven,

so \triangle APX\cong \triangle BPY by ASA postulate.

Congruent triangles have congruent corresponding sides, then

AP\cong BP

Therefore, triangle APB is isosceles triangle (by definition).

6 0
4 years ago
A mixture contains 40oz of glycol and water, and it is 10% glycol. The mixture is to be strengthened to 25% by adding glycol. Ho
Mazyrski [523]
I found 50, making a rule of three where
 40__10
  x___25

x=10
 40+10= 50
( I hope I'm right, but from what I understand this would be the resolution)



5 0
3 years ago
PLS HELP !!
Oliga [24]
For this case we have that the weight of the bouquet of flowers will be:
 4.3 * 10 ^ 4 - 2 * (7.5 * 10 ^ 2)
 Rewriting we have:
 4.1 * 10 ^ 4 miligrams
 Thus, we have that the values of p and q are given by:
 p = 4.1
 q = 4
 Answer:
 
4.1 * 10 ^ 4 miligrams
 
p = 4.1
 
q = 4
8 0
4 years ago
Read 2 more answers
10x + 5x – 3 = 2(2x – 1)
DiKsa [7]

Answer:

The answer is x = 1/11

Step-by-step explanation:

hope this helps

10x + 5x – 3 = 2(2x – 1)

10x+5x-3=4x-2

15x-4x=-2+3

11x=1

To find x divide both sides by 11

11x/11=1/11

x= 1/11

8 0
3 years ago
Read 2 more answers
the area of a rectangle is 95 square yard. if the perimeter is 48 yards find the length and width of rectangle
Vladimir [108]
Try this option:
according to the condition w+l=48 and w*l=95.
Using these two equation:
\left \{ {{l+w=48} \atop {lw=95}} \right. \ =\ \textgreater \  \   \left[\begin{array}{ccc}l=24- \sqrt{481};w=24+ \sqrt{481}\\ \\l=24+ \sqrt{481};w=24- \sqrt{481}\end{array}
4 0
3 years ago
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