3 years ago

How many solutions does 2x + 3y = -6 and 3x - 4y = -12 have

Mathematics

1 answer:

Ostrovityanka [42]3 years ago

8 0

Answer:

As there are 2 equations and two unknowns there is 1 solution

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Help !!!! rectangle pqrs has side lengths of 7 and 3 as shown on the grid below

Inessa05 [86]

Even though you have reflected this triangle, your side length would still be the same. Explanation: Reflection is when you take an object on your coordinate plain and put it somewhere else on the plain. So if side QR is 3 than side Q’R’ would also be 3. Hope this helps!

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2 years ago

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The LaSalle high school senior class raised funds for an end of the year cruise getaway. The city gave them a special package fo

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3 years ago

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2 years ago

Sandra sets the cruise control in her car to 69 miles per hour when she goes on road trips. Which equation can be used to find h

jarptica [38.1K]

Answer: $h=\frac{m}{69}$

Step-by-step explanation:

For this exercise is necessary to remember the following formula:

$V=\frac{d}{t}$

Where "V" is the speed, "d" is the distance and "t" is the time.

In this case you must solve for the time, then:

$tV=d\\\\t=\frac{d}{V}$

Based on the information provided in the exercise, you can identify that:

$V=69\\\\t=h\\\\d=m$

Therefore, knowing this, you can make the substitution into the formula $t=\frac{d}{V}$ .

Through this procedure you get that the equation that can be used to find the amount of hours "h" that it will take Sandra to drive "m" miles at her constant speed, is:

$h=\frac{m}{69}$

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3 years ago

1. Find the exact value of sin and cos of 195 degrees.

KengaRu [80]

Answer:

Sin195* = - $\frac{\sqrt{6}-\sqrt{2} }{4 }$

Cos195* = - $\frac{\sqrt{6} +\sqrt{2} }{4}$

Step-by-step explanation:

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