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
Mice21 [21]
3 years ago
10

What is the solution of 3x + 5 = 2x – 7? the x-coordinates of the intersection point of the lines y = 3x + 5 and y = 2x – 7 the

x-coordinates of the x-intercepts of the lines y = 3x + 5 and y = 2x – 7 the y-coordinate of the intersection point of the lines y = 3x + 5 and y = 2x – 7 the y-coordinates of the y-intercepts of the lines y = 3x + 5 and y = 2x – 7
Mathematics
2 answers:
Nitella [24]3 years ago
8 0

What is the solution of 3x + 5 = 2x – 7?

the x-coordinates of the intersection point of the lines y = 3x + 5 and y = 2x – 7

the x-coordinates of the x-intercepts of the lines y = 3x + 5 and y = 2x – 7

the y-coordinate of the intersection point of the lines y = 3x + 5 and y = 2x – 7

the y-coordinates of the y-intercepts of the lines y = 3x + 5 and y = 2x – 7

It's the first choice.  If we solve the simultaneous system

y = 3x + 5

y = 2x – 7

the x coordinate (there's only one) of the meet of the two lines tells us the value of x which satisfies 3x+5=2x-7

Dafna1 [17]3 years ago
5 0

Answer:

a

Step-by-step explanation:

You might be interested in
What us the slope of this line
KIM [24]

Answer:

slope = \frac{1}{2}

Step-by-step explanation:

Calculate slope m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (0, - 2) and (x₂, y₂ ) = (4, 0) ← 2 points on the line

m = \frac{0-(-2)}{4-0} = \frac{0+2}{4} = \frac{2}{4} = \frac{1}{2}

6 0
2 years ago
A tech company bought a number of computers for its employees: 66 costing \$1600$1600 each, 44 costing \$1200$1200 each, and yy
daser333 [38]

Answer:

5

Step-by-step explanation:

A tech company bought a number of computers for its employees: 6 costing $1600 each, 4 costing $1200 each, and y costing $900 each, where y is a positive odd integer. what is the greatest possible value of y

Solution:

The median of a group of numbers is the middle number when the group of numbers have been arranged either in ascending of descending other. The median of an even group of numbers is the average of the two most middle most numbers while the median of an odd group of numbers is the middle number.

Since there are 6 computers costing $1600, 4 computers costing $1200 each and y computers costing $900 each. Since y is odd, hence y + 6 + 4 would be odd and the median would be the middle number.

Given that the median price = $1200, this means that the middle of the group of numbers is $1200

900, 900, ..., 1200, 1200, 1200, 1200, 1600, 1600, 1600, 1600, 1600, 1600

Since y is odd, for the median price to be $1200, y has to be 3 or 5.

If y = 3:

900, 900, 900, 1200, 1200, 1200, 1200, 1600, 1600, 1600, 1600, 1600, 1600

median = $1200

If y = 5:

900, 900, 900, 900, 900, 1200, 1200, 1200, 1200, 1600, 1600, 1600, 1600, 1600, 1600

Median = $1200

Therefore the greatest possible value of y is 5

5 0
3 years ago
Alexandra saved up her money and bought a
Mars2501 [29]

Answer: .375

Step-by-step explanation:

Instead of doing 8/3 it would be 3/8 since there are 8 cars being put inside of 3 feet. Therefore, 3/8= .375

7 0
3 years ago
50 POINTS
zysi [14]

Answer:

Area of sector = 21.21

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Find dy du , du dx , and dy dx .
dangina [55]

Answer:

a) \frac{dy}{du}=5(x^2 +1)^4, \frac{du}{dx}=2x, \frac{dy}{dx}=10x(x^2+1)^4  

b) \frac{dy}{du}=4(4x^2-x+6)^3, \frac{du}{dx}=8x-1, \frac{dy}{dx}=4(8x-1)(4x^2-2+6)^3  

Step-by-step explanation:

We can use the chain rule in the following form: is u=u(x) is a differentiable function depending on x and y=y(u) is a differentiable function depending on u, then \frac{dy}{dx}=\frac{dy}{du} \frac{du}{dx}.

a) \frac{dy}{du}=\frac{d}{du} (u^5)=5u^4=5(x^2 +1)^4 from the power rule.  

\frac{du}{dx}=\frac{d}{dx} (x^2 +1)=2x.

From the previous parts and the chain rule, \frac{dy}{dx}=\frac{dy}{du} \frac{du}{dx}=5(x^2 +1)^4(2x)=10x(x^2+1)^4  

b) \frac{dy}{du}=\frac{d}{du} (u^4)=4u^3=4(4x^2-x+6)^3  

\frac{du}{dx}=\frac{d}{dx} (4x^2-x+6)=8x-1 from the power and sum rules.

Then, \frac{dy}{dx}=\frac{dy}{du} \frac{du}{dx}=4(4x^2 -x+6)^3(8x-1)=4(8x-1)(4x^2-x+6)^3  

8 0
3 years ago
Other questions:
  • I really need help asap!!!!!!!!!!!!!!
    10·1 answer
  • Answer the following questions (a) Given point P(3, −2, 7) in R 3 , find the distance of point P from (i) x−axis Answer: (ii) y−
    5·1 answer
  • Kamis fitness trainer recommends that she drinks 12 fluid ounces of water 8 times a day. How many cups does kami drink in one da
    11·2 answers
  • Write a linear function f with f(−10)=4 and f(−2)=4. f(x)=
    6·1 answer
  • If f(x) = 3x +5 and g(x)= x² + 1, what is the value of g[f(x)}?
    14·1 answer
  • Find a coterminous angle between 0 and 2 pi for each given angle. 191pi/45
    9·1 answer
  • What is the property of (4y+1)x 0=0
    10·1 answer
  • What is the slope of the line?
    7·2 answers
  • HELP. WILL MAKE BRAINLIEST Make a true congruence statement about the following triangles:
    7·1 answer
  • A geographer found that the land area of Aruba is 75 square miles and the land area of Bermuda is 19 square miles. Based on thes
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!