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tankabanditka [31]
3 years ago
12

Please help i need both

Mathematics
1 answer:
Contact [7]3 years ago
5 0

Answer:

1. 10 inches 2. $7.70

Step-by-step explanation:

For number one they are simply multiplying the width by 2 and for the length, it would be 5 times 2 and you'll get 10 inches.

For number 2, you had to do 21 divided by 3 and get 7. Then find 10% of 21 which is 2.10. Then 2.10 divided by the three people is 0.7. So add 7 and .7 together and get $7.70

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Solve the system by graphing.
olya-2409 [2.1K]

Option A: (0,2) is the correct answer

Step-by-step explanation:

the given equations are linear equation.

System of linear equations can be solved by graphing. The graph of equations are in the form of lines, the solution of the equations is the point of intersection of both lines

Given equations are:

y = x+2\\y = -2x+2

We have used the online graphing calculator "desmos" to plot the lines (Picture Attached)

The lines intersect at: (0,2)

Hence,

Option A: (0,2) is the correct answer

Keywords: Linear equations

Learn more about linear equations at:

  • brainly.com/question/750742
  • brainly.com/question/7419893

#LearnwithBrainly

3 0
3 years ago
Given that f:x→ax+b and f²:x→4x+9, find the value of the constants a and b​
zimovet [89]

Answer:

Step-by-step explanation:  

hello :

ax+b =4x+9     so a=4 and b=9

4 0
3 years ago
Find the value of f(3) for the function.<br> f(x) = -2(x + 3)
BabaBlast [244]

Answer:

-2(3+3) = -12

Step-by-step explanation:

f(x) is telling you to substitute all the x values into the equation. The f(x) of the function is 3, telling you to plug in 3 in the equation. This leads to -2(6) = -12.

6 0
2 years ago
Read 2 more answers
If f and g are functions of time, and at time t = 2, f equals 5 and is rising at a rate of 6 units per second, and g equals 7 an
Yuliya22 [10]

Answer:

f/g at t =3 will be 9/8

d/ddx(f(x)/g(x))=f'(x)d(x)-f(x)g'(x)/(g'(x))^2

rate of change=(6*8)+(9*9)/9^2

rate of change =43/27=1.5925

8 0
3 years ago
Read 2 more answers
Round to 2 decimal places 8.041
Helen [10]

Answer:

8.04

Step-by-step explanation:

If the last digit in 8.041 is less than 5, then remove the last digit.

I hope this helps!

6 0
1 year ago
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