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
Lubov Fominskaja [6]
3 years ago
9

Helpp pls I need an answer

Mathematics
2 answers:
FinnZ [79.3K]3 years ago
6 0

Answer:

It would be 6

Step-by-step explanation:

Lady bird [3.3K]3 years ago
4 0

Answer:

6

Step-by-step explanation:

5x + 2 - 7x = -10

Combine the two x's:

-2x + 2 = -10

Subtract 2 from both sides:

-2x = -12

Divide both sides by -2:

x = 6

You might be interested in
Expand and simplify 4(2x+3)+4(3x+2)
REY [17]
8x+12+12x+8
20x+20
The final answer is 20x+20
6 0
3 years ago
Calculate pt3 such that a line from pt1 to pt3 is perpendicular to the line from pt1 to pt2, and the distance between pt1 and pt
Leni [432]
Let the point_1 = p₁ = (1,4)
and      point_2 = p₂ = (-2,1)
and      Point_3 = p₃ = (x,y)

The line from point_1 to point_2 is L₁ and has slope = m₁
The line from point_1 to point_3 is L₂ and has slope = m₂
m₁ = Δy/Δx = (1-4)/(-2-1) = 1
m₂ = Δy/Δx = (y-4)/(x-1)
L₁⊥L₂ ⇒⇒⇒⇒ m₁ * m₂ = -1
∴ (y-4)/(x-1) = -1 ⇒⇒⇒ (y-4)= -(x-1)
(y-4) = (1-x) ⇒⇒⇒⇒⇒⇒⇒⇒⇒⇒⇒⇒⇒⇒ equation (1)

The distance from point_1 to point_2 is d₁
The distance from point_1 to point_3 is d₂
d = \sqrt{Δx^2+Δy^2}
d₁ = \sqrt{(-2-1)^2+(1-4)^2}
d₂ = \sqrt{(x-1)^2+(y-4)^2}
d₁ = d₂
∴ \sqrt{(-2-1)^2+(1-4)^2} = \sqrt{(x-1)^2+(y-4)^2} ⇒⇒ eliminating the root
∴(-2-1)²+(1-4)² = (x-1)²+(y-4)²
 (x-1)²+(y-4)² = 18
from equatoin (1)  y-4 = 1-x
∴(x-1)²+(1-x)² = 18            ⇒⇒⇒⇒⇒ note: (1-x)² = (x-1)²
2 (x-1)² = 18
(x-1)² = 9
x-1 = \pm \sqrt{9} = \pm 3
∴ x = 4 or x = -2
∴ y = 1 or y = 7

Point_3 = (4,1)  or  (-2,7)












8 0
3 years ago
Write an equivalent expression? Explain your reasoning. (t+t+t) +7t-6/(t+t+t)+2t-3
kiruha [24]

Answer:

Step-by-step explanation:

Combine any like terms on each side of the equation: x-terms with x-terms and constants with constants. Arrange the terms in the same order, usually x-term before constants. If all of the terms in the two expressions are identical, then the two expressions are equivalent.

5 0
3 years ago
Read 2 more answers
Claire and her partner, Grace, are throwing for the javelin event as a team. Claire threw the javelin 42 feet and Grace threw it
stepan [7]
The team throw the javelin 81 feet
39+42=81
3 0
3 years ago
Read 2 more answers
[GEOMETRY] please help, i keep getting 622, thats not one of the answers
Flauer [41]
It is 622 . 622 is 198*3.14
6 0
3 years ago
Other questions:
  • In 2004, the world's fastest knitter was able to knit 225 stitches in 3 min. How long would she take to knit a scarf that was 20
    8·1 answer
  • A month of the year is chosen at random. What is the probability that the month starts with the letter J or the letter M?
    13·1 answer
  • If $7500 is invested at an interest rate of 5% each year, what is the value of the investment in 4 years? Write an exponential f
    9·1 answer
  • How do I work this problem ?
    8·1 answer
  • Need help plzzzzzzzzzzz
    7·2 answers
  • Help!! ASAP!! Which ordered pair(s) are solutions to 3x − y = 1? Select all that apply.
    9·2 answers
  • Find the arc length of ADC. Round to the nearest hundredth.<br> BA = 6.5 cm
    11·1 answer
  • Is the point (4,7) on the line y=x+3
    10·2 answers
  • How much interest would 2000 earn compounded annually in two years at the rate of 1.2
    10·1 answer
  • Need help with delta math
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!