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e-lub [12.9K]
3 years ago
9

Solve for n: 4n-40=7(-2n+2)

Mathematics
1 answer:
Sidana [21]3 years ago
8 0

Step-by-step explanation:

hope this helped you :)) !!

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Select the point that is a solution to the system of inequalities​
ExtremeBDS [4]
<h3>Answer: B.  (-1, 0)</h3>

This point is below both the red diagonal line and the blue parabola. We know that the set of solution points is below both due to the "less than" parts of each inequality sign.  

In contrast, a point like (2,2) is above the parabola which is why it is not a solution. It does not make the inequality y \le x^2-3x true. So this is why we can rule choice A out.

Choice C is not a solution because (4,1) does not make y \le -x+3 true. This point is not below the red diagonal line. We can cross choice C off the list.

Choice D is similar to choice A, which is why we can rule it out as well.

5 0
3 years ago
URGENT!! NEED THIS IN TWO HOURS. DUMB ANSWERS WILL BE REPORTED ALTHOUGH I UNDERSTAND IF YOU MAKE A SIMPLE MISTAKE IN YOUR CALCUL
Andre45 [30]

Yo sup??

The given points are (1,1),(1,3) and (9,2)

equation of circle is

8x²+8y²+ax+by=0

let us plug in (1,1) in the equation we get

8+8+a+b=0

a+b=-16

let us now plug in (1,3) in the equation

8+8*3²+a+3b=0

a+3b=-80

let us. now solve the two equation in terms of a and b

we get

2b=--64

b=-32

and

a=-16+32

=16

therefore the equation is

8x²+8y²+16x-32y=0

Hope this helps

6 0
3 years ago
If your navigator tells you your position is 0.7 nautical miles from the West Point light, how far is that in feet? And how far
Nataly_w [17]

Answer:

that would be 4253.28 feet

that would be 1296.4 m

Step-by-step explanation:

I think that's the answer and I hope it helps :)

8 0
3 years ago
Problem 18 Last summer, Lisa and her family went on vacation. They drove from their home to Florida. They drove four days, about
Maru [420]

Answer:

2160

Step-by-step explanation:

Distance covered per day =540miles

Number of days travelled = 4 days

Therefore,the mil we s travelled altogether= 540×4= 2160

4 0
3 years ago
How do you multiply and divide fractions? please explain in depth with examples.​
Dmitry_Shevchenko [17]

Answer:

To multiply fractions, all you have to do is multiply the numerators and denominators and simplify the result. To divide fractions, you simply have to flip the numerator and denominator of one of the fractions, multiply the result by the other fraction, and simplify.

Step-by-step explanation:

3 0
3 years ago
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