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2 years ago

{3x+y=2 {6x +2y=4 i think it’s system of equations

Mathematics

1 answer:

kirill [66]2 years ago

4 0

Answer:

Infinitely many solutions.

Step-by-step explanation:

$3x+y=2$

$6x+2y=4$

$6x+2(2-3x)=4$

$6x+4-6x=4$

$6x-6x=4-4$

$0=0$

Since the two equations are the same, the system of equations has infinitely many solutions.

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A point is reflected across the y axis the new point is located at -4.25,-1.75 write the order pair that represents the original

Naya [18.7K]

Answer:

(4.25, - 1.75)

Step-by-step explanation:

Under a reflection in the y- axis

a point (x, y ) → (- x, y ), thus

(- 4.25, - 1.75 ) → (4.25, - 1.75 ) ← original point

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3 years ago

Sarah went to an electronics store, purchased 3 CDs and 5 DVDs, and spent $137. Michelle went to the same store, bought 2 CDs an

vesna_86 [32]

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3 years ago

Read 2 more answers

Calculate the area of the regular pentagon below: A regular pentagon with side length of 11.8 inches and dotted line from center

vlada-n [284]

Answer:

Area of regular pentagon is 238.95 square inches.

Step-by-step explanation:

Given a regular pentagon with side length of 11.8 inches and dotted line from center to middle of side of 8.1 inches.

we know a regular polygon divides into 5 congruent triangles.

Side of pentagon i.e base of one triangle is 11.8 inches.

Also, distance from center to middle of side which is height of triangle is 8.1 inches.

Area of 1 triangle= $\frac{1}{2}\times base\times height$

= $\frac{1}{2}\times 11.8\times 8.1$

= 47.79 sq inches.

Area of regular pentagon=area of 5 congruent triangles= $5\times 47.79$ =238.95 sq inches.

5 0

3 years ago

Help me with this!

andriy [413]

Answer:
Relation #2 and #4

3 0

3 years ago

Select ALL the true statements: (See the screenshot please :) )

beks73 [17]

Answer:

B. Dilations of an angle are congruent to the original angle.

E. Dilations of a triangle can be similare to the original triangle.

Step-by-step explanation:

These both look like the only correct ones.

Hope it helps!

6 0

2 years ago