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
Helga [31]
3 years ago
7

I need help with number 7 and 8

Mathematics
1 answer:
devlian [24]3 years ago
5 0
7.

The point-slope form of the equation of a line is

y - y1 = m(x - x1)

where m is the slope, and (x1, y1) is a point on the line.

We are given two points, so we can find the slope.

slope = m = (y2 - y1)/(x2 - x1)

The slope of this line is

m = (-3 - 7)/(5 - (-15)) = -10/20 = -1/2

Since every choice has a 7 and a 15, we now use point (-15, 7) and slope -1/2.

y - y1 = m(x - x1)

y - 7 = -1/2(x - (-15))

y - 7 = -1/2(x + 15)
You might be interested in
Calculus AB Assignment: Writing Symmetrical Functions 4. The domain of f(x) is [O, ..) and 1 2 3 4 f(x) { } 1o in Х 1 2 1 5 1 17
AveGali [126]

Answer:

Step-by-step explanation:

5 0
3 years ago
A 135-page notebook has 33 writing lines on each page. What is the total number of writing lines in the entire notebook
ladessa [460]

Answer:

4455

Step-by-step explanation:

135 pages x 33 lines a page = 4455 lines.

6 0
2 years ago
At the Science Museum, there is an exhibition with 150 displays about energy.
tatuchka [14]
<span>1/5
       
This is a matter of elimination. So let's figure out how many of each display there is. 30% of 150 = 0.30 * 150 = 45 displays about electricity. 2/5 * 150 = 0.40 * 150 = 60 displays about renewable energy 1/10 * 150 = 150/10 = 15 displays about gas. The rest of the displays are about nuclear power. So 150 - 45 - 60 - 15 = 30 displays about nuclear power. Since we want a fraction, we get 30/150 But 30/150 isn't in it's simplest form. The largest number that will evenly divide both 30 and 150 is 30. So divide both the numerator and denominator by 30 (30/30)/(150/30) = 1/5 So 1/5 of the displays are about nuclear power.</span>
8 0
3 years ago
Arrange these numbers from least to greatest:
zmey [24]
First let's put them all over 100.
-\frac{5}{8} would change to -\frac{62.5}{100}

-\frac{7}{9} to -\frac{77.7}{100}

-\frac{4}{5} to -\frac{80}{100}

-\frac{3}{7} to -\frac{42.8}{100}

Then if we put them from least to greatest it would be from highest to lowest (since they are negatives)

-\frac{4}{5}, -\frac{7}{9}, -\frac{5}{8}, -\frac{3}{7}

The answer would be B


8 0
3 years ago
Needs some help on this
kari74 [83]
A is the answer to the question.
8 0
3 years ago
Read 2 more answers
Other questions:
  • Whats 4×5÷6×9÷5×3÷9​
    10·2 answers
  • The formula for the area of a square can be written as A = s^2 and means “area equals side-squared”. Explain how the formula for
    7·1 answer
  • Question stated in photo.
    8·2 answers
  • Construct a triangle ABC, with BC = 7.5, AC = 5cm and angle BCA = 120°​
    6·1 answer
  • A bicycle wheel has a circumference of 62 inches. Find the diameter of the wheel. If necessary, round to the tenths
    9·2 answers
  • I need Your help Plish✍​<br>(brainliest)
    14·1 answer
  • Solve for x: 5x + 2 = 4x - 9
    7·2 answers
  • 6. Which of the following will NOT produce more
    8·1 answer
  • Help me please will mark brainliest
    7·1 answer
  • If shares in Cleanaway Waste Ltd are $1.87 and they increase by 2.41%, what will the new share price be, to 2 decimal places? In
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!