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2 years ago

PLEASE HELL ASAP I BEED SOMEBODYS HELPPPPPPPPPPPPP

Mathematics

2 answers:

Nimfa-mama [501]2 years ago

5 0

<h3>Answer: Choice A) They are the only values that make both equations true</h3>

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Explanation:

plug x = 1.5 and y = -1.5 into the first equation

-2y + 6x = 12

-2(-1.5) + 6(1.5) = 12

3 + 9 = 12

12 = 12 ... we get a true equation

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Plug x = 1.5 and y = -1.5 into the second equation

4x + 12y = -12

4(1.5) + 12(-1.5) = -12

6 - 18 = -12

-12 = -12 ... another true equation

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Both equations are true when (x,y) = (1.5, -1.5)

So it is a solution of the system.

This is the only solution. This is because there is only one point of intersection of the two lines.

Illusion [34]2 years ago

3 0

your answer is part A ....

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Hi pls help! ill mark u brainliest

mina [271]

Answer:

450+70x

Step-by-step explanation:

x is the number of months and 450 is the actual amount of money in his bank account

8 0

2 years ago

A spacecraft is traveling with a velocity of v0x = 5320 m/s along the +x direction. Two engines are turned on for a time of 739

OlgaM077 [116]

Answer:

The velocities after 739 s of firing of each engine would be 6642.81 m/s in the x direction and 5306.02 in the y direction

Step-by-step explanation:

For a constant acceleration: $v_{f}=v_{0}+at$ , where $v_{f}$ is the final velocity in a direction after the acceleration is applied, $v_{0}$ is the initial velocity in that direction before the acceleration is applied, a is the acceleration applied in such direction, and t is the amount of time during where that acceleration was applied.
<em>Then for the x direction</em> it is known that the initial velocity is $v_{0x} =$ 5320 m/s, the acceleration (the applied by the engine) in x direction is $a_{x}$ 1.79 m/s2 and, the time during the acceleration was applied (the time during the engines were fired) of the is 739 s. Then: $v_{fx}=v_{0x}+a_{x}t=5320\frac{m}{s} +1.79\frac{m}{s^{2} }*739s=6642.81\frac{m}{s}$
In the same fashion, <em>for the y direction</em>, the initial velocity is $v_{0y} =$ 0 m/s, the acceleration in y direction is $a_{y}$ 7.18 m/s2, and the time is the same that in the x direction, 739 s, then for the final velocity in the y direction: $v_{fy}=v_{0y}+a_{y}t=0\frac{m}{s} +7.18\frac{m}{s^{2} }*739s=5306.02\frac{m}{s}$

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2 years ago

If Landon checks his pulse for 12 minutes, what is his rate if he counts 1560 beats?

Lynna [10]

It is 130 beats per minute.

Step-by-step explanation:

Just divide 1560 by 12.

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3 years ago

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luda_lava [24]

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2 years ago

Three friends go grocery shopping together, and each guys the same kinds of strawberries. Akio buys 2 pounds and pays 1.50. Gord

Sav [38]

Answer: Graph B

Step-by-step explanation:

The unit price for the strawberries is:

= 1.5 / 2

= $0.75 per pound

Graph B is the right graph as it uses a unit price of $0.75 per pound for strawberry price. This is why it has points of the graph that mirror the friends purchases such as (2, 1.5) , (3, 2.5) and (4, 3).

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2 years ago

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