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LiRa [457]
3 years ago
10

What is an equation of the line that passes through the points (1,-7) and (-4,8) and put it in fully reduced form

Mathematics
1 answer:
Umnica [9.8K]3 years ago
4 0

equation of line passing through (1,-7)( -4,8)

First let's find slope (m)

m = (8+7)/(-4-1)

= 15/-5 = -3

(x1,y1) = (1,-7)

Plugging above value in

y - y1 = m( x-x1)

y+7 = -3( x-1)

y+7 = -3x +3

y+3x +4=0

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Which method correctly solves the equation using the multiplication property of equality and the reciprocal of One-third? One-th
Airida [17]

Answer:

Step-by-step explanation:

Given the equation \frac{1}{3}(x+9) = -12

Step 1;

Expand the bracket at the right hand side of the equation to have:

\frac{1}{3}x +\frac{1}{3}(9) = -12\\\frac{1}{3}x+3=-12\\subtracting\ 3\ from\ both\ sides\\\frac{1}{3}x+3-3=-12-3\\\frac{1}{3}x=-15\\

Taking the reciprocal of both sides:

\frac{3}{x} = \frac{-1}{15} \\ cross\ multiplying\\-x =45\\x=-45

4 0
3 years ago
Read 2 more answers
Select the correct answer.
Nat2105 [25]

Answer:

Step-by-step explanation:

Both distances are in the scientific notation:

Earth - Sun = 9.3 * 10^7 miles

Saturn - Sun = 8.87 * 10^8 miles

8.87 * 10^8 - 9.3 * 10^7 =

= 88.7 *10^7 - 9.3 * 10^7 =

= 79.4 * 10^7 = 7.94 * 10 ^8 = 794,000,000 miles

Answer: Saturn is  7.94 * 10^8 miles farther from Sun than Earth is.

6 0
2 years ago
if 22000 pots with 15 seeds each are used in a nursery, how many total seeds, in scientific notation?
kipiarov [429]

Write the total number of seeds in scientific notation

Given:

Number of pots = 22,000

Number of seeds = 15

<em>Total number of seeds = Number of pots × Number of seeds</em>

= 22,000 × 15

= 330,000

Scientific notation is written in multiples of 10

  • Count the number of digits
  • Insert a decimal point between the first digit and other digits
  • count the number of digits after the first digits
  • multiply by 10 raise to the power of number of remaining digits after first digits

= 3.30000 × 10^5

Therefore,

the total number of seeds in

scientific notation is 3.30000 × 10^5

Read more:

brainly.com/question/10401258

7 0
2 years ago
I need help please and thank you
Rom4ik [11]

Answer:

144°

Step-by-step explanation:

Hope this helps :)

8 0
3 years ago
Simplify<br><br> -3-20 divided by (-2*1)<br><br> Is the answer 7?
Anna35 [415]
No the answer is -13. Please mark me brainliest!
8 0
3 years ago
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