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
Bogdan [553]
3 years ago
5

Write an equation to find x by substituting.

Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
5 0

Answer:

3

Step-by-step explanation:

5x-2=3x+4

5x-3x=4+2

2x=6

x=3

You might be interested in
3x-5x+4 answer please
vova2212 [387]

Answer:

Step-by-step explanation:

6x

8 0
3 years ago
Read 2 more answers
For the function y=3x2: (a) Find the average rate of change of y with respect to x over the interval [3,6]. (b) Find the instant
nirvana33 [79]

Answer:

The instantaneous rate of change of y with respect to x at the value x = 3 is 18.

Step-by-step explanation:

a) Geometrically speaking, the average rate of change of y with respect to x over the interval by definition of secant line:

r = \frac{y(b) -y(a)}{b-a} (1)

Where:

a, b - Lower and upper bounds of the interval.

y(a), y(b) - Function exaluated at lower and upper bounds of the interval.

If we know that y = 3\cdot x^{2}, a = 3 and b = 6, then the average rate of change of y with respect to x over the interval is:

r = \frac{3\cdot (6)^{2}-3\cdot (3)^{2}}{6-3}

r = 27

The average rate of change of y with respect to x over the interval [3,6] is 27.

b) The instantaneous rate of change can be determined by the following definition:

y' =  \lim_{h \to 0}\frac{y(x+h)-y(x)}{h} (2)

Where:

h - Change rate.

y(x), y(x+h) - Function evaluated at x and x+h.

If we know that x = 3 and y = 3\cdot x^{2}, then the instantaneous rate of change of y with respect to x is:

y' =  \lim_{h \to 0} \frac{3\cdot (x+h)^{2}-3\cdot x^{2}}{h}

y' =  3\cdot \lim_{h \to 0} \frac{(x+h)^{2}-x^{2}}{h}

y' = 3\cdot  \lim_{h \to 0} \frac{2\cdot h\cdot x +h^{2}}{h}

y' = 6\cdot  \lim_{h \to 0} x +3\cdot  \lim_{h \to 0} h

y' = 6\cdot x

y' = 6\cdot (3)

y' = 18

The instantaneous rate of change of y with respect to x at the value x = 3 is 18.

5 0
3 years ago
The science club sold 24 t-shirts last week and 18 T-shirts this week. What is the percentage of decrease in the number of T-shi
MAVERICK [17]

Answer:

D) 75%

Step-by-step explanation:

75% of 24 = 0.75 x 24 = 18

6 0
3 years ago
Select the correct answer from each drop-down menu.
Oksana_A [137]

Answer:

B

Step-by-step explanation:

B because range of set B is more than set A

range B=56-12=44

range A=55-12=43

5 0
2 years ago
Find the inverse function. f(x) = x - 5​
vesna_86 [32]

Answer:

f^-1 (x) = x^2 + 5

Step-by-step explanation:

f(x) = √x - 5

replace x with y

x= √y - 5

solve for y,

x =√y-5

x^2 + 5

Answer -

f^-1(x) = x^2 + 5

HOPES THIS HELPS :)

7 0
2 years ago
Other questions:
  • Which expression is equivalent to 12x – 3x? *<br><br> 8x<br> 9<br> 3(3x - x)<br> x(12-3)
    9·2 answers
  • F(x)=(-3x+2) and g(x)=(2x^2-5x-1)
    11·1 answer
  • 3/11 divided by 2/9 equals what
    15·2 answers
  • .solve for c <br> c−1.5+6.8=0.6<br><br> I NEED HELP
    7·1 answer
  • Over which of the following intervals is the function below increasing at the greatest average rate? y=3log₂(x)-1
    10·1 answer
  • 9. If you invest $2000 an account that pays 8 % interest
    7·1 answer
  • Person who gets it correct wins brainliest! This is due is 2 minutes! Question is in the screenshot. QUESTION 2!
    6·1 answer
  • What is the area of a triangle whose side measures 7 meters and whose height to that base measures 4 meters?
    8·1 answer
  • Find the third side in simplest radical form.
    13·2 answers
  • What is the decimal expansion of 10/11
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!