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
ivolga24 [154]
3 years ago
9

Find the slope of the line through (-9, -10) and (-2, -5)

Mathematics
1 answer:
vova2212 [387]3 years ago
6 0

Step-by-step explanation:

slope =  \frac{y2 - y1}{x2 - x1}

(-5-(-10)/(-2-(-9)=

5/7=slope

You might be interested in
X^2 - y^2 = 100
luda_lava [24]

Answer:

20

Step-by-step explanation:

Let's start by rewriting the second equation in terms of "x":

x+y=5

Subtract y from both sides:

x=5-y

Now, substitute "5-y" for "x" in the first equation:

(5-y)^2-y^2=100

Note that:

(a-b)^2=a^2-2ab+b^2

25-10y+y^2-y^2=100

Cancel out like terms:

25-10y=100

Subtract 25 from both sides:

-10y=75

Divide both sides by -10

y=\frac{75}{-10}=\frac{15}{-2}=-\frac{15}{2}

Now, substitute this value back into either of the equations to solve for x.

x+y=5\\x-\frac{15}{2}=5\\

Add 15/2 to both sides:

x=5+\frac{15}{2}\\x=\frac{10}{2}+\frac{15}{2}\\x=\frac{25}{2}

Now, find the difference:

x-y=\frac{25}{2}-(-\frac{15}{2})=\frac{25}{2}+\frac{15}{2}=\frac{40}{2}=20

8 0
2 years ago
How do I construct bisectors, angles, & segments?
Doss [256]

Answer:

Step-by-step explanation:

These come directly from my textbook, so I'm not sure if your teacher will accept this kind of work.

1. Angle construction:

Given an angle. construct an angle congruent to the given angle.

Given: Angle ABC

Construct: An angle congruent to angle ABC

Procedure:

1. Draw a ray. Label it ray RY.

2. Using B as center and any radius, draw an arc that intersects ray BA and ray BC. Label the points of intersection D and E, respectively.

3. Using R as center and the same radius as in Step 2, draw an arc intersecting ray RY. Label the arc XS, with S being the point where the arc intersects ray RY.

4. Using S as center and a radius equal to DE, draw an arc that intersects arc XS at a point Q.

5. Draw ray RQ.

Justification (for congruence): If you draw line segment DE and line segment QS, triangle DBE is congruent to triangle QRS (SSS postulate) Then angle QRS is congruent to angle ABC.

You can probably also Google videos if it's hard to imagine this. Sorry, construction is super hard to describe.

4 0
3 years ago
8|7+(-10)<br> Simplify:<br> 2-32
amid [387]

Answer:

8|7+(-10)=24  2-32= − 30

Step-by-step explanation:

6 0
3 years ago
What is a decimal in tenths that is less than 2.42 but greater than2.0
lukranit [14]
The decimal of 2.1 is greater than 2.0 but less than 2.42
7 0
3 years ago
Read 2 more answers
0.2343217 Is it rational or irrational
tia_tia [17]
Irrational because it can not be written as a fraction
8 0
2 years ago
Other questions:
  • Suppose you roll a special 49-sided die. what is the probability that the number rolled is a "1" or a "2"?
    11·1 answer
  • Evaluate 3 square root 125/100?<br> What is the answer plz help thx
    12·1 answer
  • kate spent 3/5 of her money on a manicure and had $45 left. how much money did she have at first?(PLEASE SHOW STEPS!)
    8·2 answers
  • Given: — <br> Xw Is an altitude <br> M Prove: x=12
    9·1 answer
  • Please help me I am stuck (questions are in the picture, and the marked-off section does not have to be done).
    6·1 answer
  • Decrease £101 by 43%<br> Give your answer rounded to 2 DP.<br> £
    8·1 answer
  • Plssssss let me know it will help a lot
    14·1 answer
  • How is taking away sandbags different from adding
    7·1 answer
  • (6x)^2 can be thought of as a vertical stretch by a factor of<br> O 6<br> O 36<br> O nothing
    7·1 answer
  • Help please?? What do I put for the last 2??
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!