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levacccp [35]
2 years ago
6

How many solutions does this system have?

Mathematics
1 answer:
goblinko [34]2 years ago
5 0

A system of equation may have one, zero or infinitely many solutions

The system of equation has no solutions

The systems of equation are given as:

y = -6x - 5

-2y +7 = 12x

Substitute -6x - 5 for y in -2y +7 = 12x

-2(-6x - 5) +7 = 12x

Open brackets

12x + 10 +7 = 12x

12x + 17 = 12x

Subtract 12x from both sides of the equation

17 = 0

The above equation is not true i.e.17 \ne 0

Hence, the system of equation has no solutions

Read more about solutions of equations at:

brainly.com/question/9338739

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I think it will be 23 because you will divide 208 by 9 and you will get
23 r1

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In which of the following functions would it be appropriate to use only positive integers for the domain? Select all that apply.
DerKrebs [107]

Answer: The function c(p) represents the cost for (P) people to attend the movies.

The function t(m) represents the average high temperature for a given number of months.

Step-by-step explanation:

3 0
2 years ago
Base 8 representation of 112 work out
erastovalidia [21]
To convert a decimal (112) to base 8, divide by eight, keep the quotient and remainder.  Repeat with the quotient.

112/8=14 R0
14/8=1 R6
1/8=0 R1

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3 years ago
5x +6 (x-2) -8 (x-3) please help
DedPeter [7]

Answer:

3x + 12

Step-by-step explanation:

5x + 6(x - 2) - 8(x - 3) ← distribute parenthesis

= 5x + 6x - 12 - 8x + 24 ← collect like terms

==(5x + 6x - 8x) + (- 12 + 24)

= 3x + 12

8 0
1 year ago
a crew is setting up a zip line between two towers with support wires as shown in the figure (not to scale). they only know the
34kurt

Answer:

length of the zip line = 121. 63 ft

Step-by-step explanation:

The length of the zip line AB forms a triangle  ABC. To find the length AB we need to know the length of 2 sides of the triangle an angle.

Triangle ADC

We need to find the hypotenuse side AC using the SOHCAHTOA principle.

Therefore,

sin 41° = opposite/hypotenuse

opposite = 65 ft

sin 41° = 65/AC

cross multiply

0.65605902899 AC = 65

divide both sides by 0.65605902899

AC = 65/0.65605902899

AC = 99.0764506359  ft

AC ≈ 99.08 ft

Triangle BCE

We are looking for side BC. The triangle BCE is also a right angle triangle so we use the same methodology like the triangle ADC.

sin 62° = opposite/hypotenuse

opposite = 85 ft

sin 62° = 85/BC

cross multiply

BC sin 62° = 85

BC = 85/sin 62°

BC = 85/0.88294759285

BC = 96.2684543086

BC ≈ 96.27 ft

The angle ACB can be gotten when you subtract 62° and 41° from 180 (angle on a straight line).

Therefore,

∠ACB = 180° - 62° - 41°

∠ACB  = 77°

Now let us use the cosine law to find the zip line AB.

c² = a² + b² - 2ab cos C

a = 96.27 ft

b = 99.08 ft

c² = 96.27² + 99.08² - 2 × 96.27 × 99.08 cos 77°

c² = 9267.9129 + 9816.8464 - 19076.8632 cos 77°  

c² = 19084.7593 - 19076.8632 × 0.22495105434

c²  = 19084.7593 - 4291.36049041

c² = 14793.398810

square root both sides

c = √14793.398810

c = 121.628116856

c ≈ 121. 63 ft

length of the zip line = 121. 63 ft

3 0
3 years ago
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