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USPshnik [31]
3 years ago
10

How many solutions does this system of equations have y=5x-4and y=5x+2 1.infinitely many 2. 0 3. 1 4. 2

Mathematics
1 answer:
valentina_108 [34]3 years ago
7 0
Number 1. Infinitely many
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The teacher separated her class of twenty-eight students into two groups. One group has 4 more than twice as many students as th
wariber [46]
4+2x = x (x = student in smaller group)

4 + 2x + x = 28 (total # of students)
4+ 3x = 28
3x = 24
x = 8
8 students in the smaller group 
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8 0
3 years ago
((Image Included))
Bas_tet [7]

Answer:

=204.13 inches.

Step-by-step explanation:

Using the side x, we can use sine to find the hypotenuse of the triangle with the angle marked 30°.

Sin 30 =x/hypotenuse.

sin 30 = 27/hyp

hyp= 27/sin 30

=54 inches

We can also find the adjacent as follows.

Cos 30 = adjacent/ 54

Adjacent= 54 cos 30

=46.77 inches

Using the angles marked 45 we can find the hypotenuse of the isosceles triangle.

sin 45= x/hypotenuse

sin 45 =27/hypotenuse

hypotenuse = 27/sin 45

=38.18 inches

The hypotenuse of both the triangles making the isosceles triangle are 38.18 inches long.

Perimeter = 54+ 46.77+27+ 38.18+38.18

=204.13 inches.

6 0
3 years ago
Read 2 more answers
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Viefleur [7K]

Answer:

its the first one

Step-by-step explanation:

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ASHA 777 [7]

Answer:

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Step-by-step explanation:

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3 years ago
What number is half-way between thirteen and thirty-one
mars1129 [50]

\frac{13 + 31}{2} = \frac{44}{2} = 21

Answer: 21

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