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Leona [35]
2 years ago
8

What the answer to y=2x+7 and y=4x-9 using substitution

Mathematics
1 answer:
sukhopar [10]2 years ago
6 0
The answer is (-43/2,-35) you welcome :)
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Please please help me please
Butoxors [25]

Answer:

Step-by-step explanation:

height of a triangle=4x-1

base=5x+2x-3

=7x-2

area of triangle=base*height/2

=(7x-2)(2x-3)/2

=7x*2x-7x*3-2*2x+2*3/2

=14x^2+21x-4x-6/2

=14^2+17x-6/2

area of rectangle=l*b

(7x-2)(4x+1)

7x(4x+1)-2(4x+1)

4x*7x+7x*1-2*4x-2*1

=28x^2+7x-8x-2

=28x^2-x-2

area of shaded part=area of rectangle-area of triangle

=(28x^2-x-2 )-\frac{14x^2+17x-6}{2}

7 0
3 years ago
Please help!!!
kifflom [539]

Answer: If I am correct, I do believe that A is equal to F, meaning that the angle of A, which is 100°, is also the angle of F.

Step-by-step explanation:

Sorry if I am wrong I'm new at this.

8 0
3 years ago
Read 2 more answers
In the 2017 fiscal year, the state of Alaska received $8.2 billion In revenues and had $7.2 billion in expenditures. What percen
konstantin123 [22]
To figure this out you can do 7.2/8.2, because you are trying to figure out how much of the total was used, and percentages would not be more than 100%. Doing this you would get ~.878. To convert this to a percent, you would just multiply it by 100, which would give you 87.8%. The question states to round to the nearest whole percent, leaving you with 88%. This means that 88% of the revenue was spent.

Hope that helped, don't be shy to comment on this if you have any questions about my explanation :)
8 0
3 years ago
Which graph shows the line y=35x−3?
elena-s [515]

Answer:

the last picture

Step-by-step explanation:

the one where the line hits the -3 mark on the y-axis

5 0
3 years ago
Read 2 more answers
Veronica is choosing between two health clubs. After how many months will the total cost for each health club be the same? Yoga
Rina8888 [55]

Answer:

4 months

Step-by-step explanation:

8 0
3 years ago
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