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
deff fn [24]
3 years ago
12

Someone please help me❤️ Urgently with at least 1

Mathematics
1 answer:
Oksanka [162]3 years ago
8 0

Answer:

See step-by-step explanation

Step-by-step explanation:

Question 3: (4, -3)

Solving through elimination: Multiply the first equation by -3.

-3x+6y=-30

3x-5y = 27

Add. The x drops out.

y= -3

Substitute -3 in for y.

x-2y=10

x-2(-3)=10

x+6=10

x=4

Question 4: (2,5)

Solve through elimination: Multiply the second equation with 3.

\frac{3}{2} x+y=8

\frac{9}{4} x-y=-\frac{1}{2}

3/2= 6/4

15/4x=7.5

x=2

3/2 (2) + y = 8

3+ y =8

y=5

Question 5: (6,4)

Use your graph to graph.

y=-\frac{1}{3} x+6

Slope of -1/3

Y-intercept of 6 (0,6)

X-intercept of 18 (18,0)

y=\frac{3}{2} x-5

Slope of 3/2

Y-intercept of -5 (0,-5)

X-intercept of \frac{10}{3} (

Question 6: (5, -7)

Ax+2By=-41

4Ax-By=88

3A+2B(4)=-41

4A(3)-B(4)=88

Solve by substitution:

Words of encouragement:

Good luck!

You might be interested in
Which expression is equivalent to 298−−√⋅2√298·2 ?
Alecsey [184]
2 \sqrt{98} \cdot \sqrt{2} =2 \sqrt{49\times2} \cdot \sqrt{2}  \\  \\ =2 \sqrt{49} \cdot \sqrt{2} \cdot \sqrt{2} =2\times7\times2 \\  \\ =28
4 0
3 years ago
Read 2 more answers
A right circular cylinder is changing shape. The radius is decreasing at the rate of 2 inches/sec while it's height is increasin
Savatey [412]

Answer:

<h3> 552.640in³/s</h3>

Step-by-step explanation:

Volume of a cylinder is expressed as;

V = \pi r^2 h

\frac{dV}{dt} = \frac{dV}{dr} \frac{dr}{dt} +\frac{dV}{dh} \frac{dh}{dt}

dV/dr = 2πrh

dV/dr = 2π(4)(6)

dV/dr = 48(3.14)

dV/dr = 150.72in³/m

dV/dh = πr²

dV/dh = 3.14(4)²

dV/dh = 50.24

Given

dh/dt = 5in/s

dr/dt = 2in/s

Substitute into the dV/dt

dV/dt = 150.72(2)+50.24(5)

dV/dt = 301.44 + 251.2

dV/dt= 552.640in³/s

The volume is changing at the rate of  552.640in³/s

7 0
2 years ago
kara needs to get a 75% on her drivers education test in order to get her license. If there are 35 questions, how many does she
marishachu [46]

Answer:

26.25 questions

Step-by-step explanation:

75% of 35 is 26.25

5 0
3 years ago
Read 2 more answers
The store sells walnuts for $2.95 per pound. Corey bought 2.4 pounds of walnuts. Before tax, how much will the walnuts cost?
stepladder [879]

Answer:

$7.18

Step-by-step explanation:

Multiply the number of pounds bought by the cost of one pound.

 (2.4 pounds)($2.99 per pound) = $7.176 ≅ $7.18

7 0
3 years ago
Read 2 more answers
If measure 5 = x, which angles have a measure of 180 - x? select all that apply
N76 [4]

Answer:

Step-by-step explanation:

175 is the answer I don’t feel like working it out

8 0
4 years ago
Other questions:
  • A random variable x is uniformly distributed over the interval (-4, 6). Find the standard deviation of x. (Note: Uniform distrib
    15·1 answer
  • A six sided fair die is rolled 4 times in a row the probability of getting a 4 only on the last trail is
    13·1 answer
  • Tickets to the annual awards banquet for a club cost $58 each. Ticket sales for the banquet totaled $2436. Estimate the number o
    10·1 answer
  • Given the polynomial f(x)=8x5−4x3 6x 15
    13·1 answer
  • A Fifty dog owners and 50 people who do not own dogs are each given a test to evaluate their stress levels. Dog owners are found
    5·1 answer
  • Complete the table for the equation you wrote in Exercise 6.
    8·1 answer
  • A state has a lottery game where a person picks one of the 1000 three-digit numbers between 000 and 999. The lottery selects a t
    15·1 answer
  • Is 26 a multiple of 3? yes 9r no ? why 9r why not?​
    15·2 answers
  • Hunter buys 36 baseball cards for $18. How many baseball cards can Troy buy if
    13·2 answers
  • What is 6.387 rounded to the nearest tenth and the nearest hundredth?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!