1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alex
3 years ago
9

4x + 11y = 7 4x + 3y = -1

Mathematics
1 answer:
Serhud [2]3 years ago
5 0

Answer:

x= - 1

y= 1

Step-by-step explanation:

qwertyuiopsknzvzbjzjjs

You might be interested in
Let A(t) be the area of a circle with radius r(t), at time t in min. Suppose the radius is changing at the rate of drdt=6 ft/min
mylen [45]

Answer:

The rate of change is 108\pi ft^(2)/min

Step-by-step explanation:

The area of a circle is given by the following equation:

A(t) = \pi r^{2}

To solve this question, we have to realize the implicit differentiation in function of t. We have two variables, A and r. So

\frac{dA(t)}{dt} = 2\pi r \frac{dr}{dt}

We have that:

\frac{dr}{dt} = 6, r = 9.

We want to find \frac{dA}{dt}

So

\frac{dA(t)}{dt} = 2\pi*9*6

\frac{dA}{dt} = 108\pi

Since the area is in square feet, the rate of change is in ft^(2)/min.

So the rate of change is 108\pi ft^(2)/min

5 0
3 years ago
Use the number line determine the absolute value. enter the value, as mixed numbers in the simplest form, in the box.
vitfil [10]
The absolute value of -1/3 is 1/3. I guess by using the number line you move 2(1/3) to the right from the point -1/3
4 0
3 years ago
Evaluate 3.6x + 4.5y when x=3 and y=7
Ilya [14]
The answer is 42.3


Step by Step:

Let our variable be n, standing for number.

3.6(x) + 4.5(y) = n
3.6(3) + 4.5(7) = n
10.8 + 31.5 = n
n = 42.3

5 0
3 years ago
Read 2 more answers
The complement of an angle is one-sixth the measure of the supplement of the angle. What is the measure of the complement angle?
cestrela7 [59]

Answer:

The measure of the complement angle is 18\°

Step-by-step explanation:

Let

x-----> the angle

we know that

The complement of an angle is equal to (90-x)\°

The supplement of an angle is equal to (180-x)\°

we have

The complement of an angle is one-sixth the measure of the supplement of the angle

(90-x)\°=(1/6)(180-x)\°

solve for x

(540-6x)\°=(180-x)\°

(6x-x)=(540-180)\°

(5x)=(360)\°

x=72\°

Find the measure of the complement angle

(90-x)\° ------> (90-72)=18\°

7 0
3 years ago
Read 2 more answers
I need help with 1-8.
RSB [31]
Devide them all by 2
4 0
3 years ago
Other questions:
  • IMPORTANT! PLEASE HELP!
    15·2 answers
  • The total amount of money in a savings account after t years is given by the function A=1000(1.023)^t .
    13·2 answers
  • PLEASEEE HELP ME WITH THESE QUESTIONS THANKYOU!!
    9·2 answers
  • Simplify 4.836 divided by 1.2​
    8·2 answers
  • Determine the value of y, if x is 7.<br> y = x2 - 1
    7·2 answers
  • Which situation represents a proportional relationship?
    15·2 answers
  • Right answer gets brainlist
    6·1 answer
  • Another question about math
    7·1 answer
  • Helpppp confused
    6·1 answer
  • Which number line shows the solution set for StartAbsoluteValue 2 p minus 4 EndAbsoluteValue greater-than-or-equal-to 6?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!