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
emmainna [20.7K]
3 years ago
7

Find the area of ΔABC. vertices are A(2, 1), B(3, 3), and C(1, 6)

Mathematics
1 answer:
Karolina [17]3 years ago
7 0

Answer:

area = (1/2)|Ax(By-Cy) +Bx(Cy-Ay) +Cx(Ay-By)|

 = (1/2)|2(3-6) +3(6-1) +1(1-3)| = (1/2)|-6 +15 -2|

 area = 7/2

learn at brainly.com/question/17119045

You might be interested in
H²+10h=-21 solve quadratic trinomials
sladkih [1.3K]
H²+10h+21 = 0
h²+3h+7h+21 = 0
h(h+3)+7(h+3) = 0
(h+3)(h+7) = 0

h+3=0
h = -3

h+7=0
h=-7
5 0
3 years ago
Find (f • g) when f(x) = x^2 + 5x + 6 and g(x) = 1/x+3
Nikitich [7]

Answer:

option D

Step-by-step explanation:

f(x) = x^2 + 5x + 6

g(x)= \frac{1}{x+3}

(fog)(x) = f(g(x))

Plug in g(x) in f(x)

We plug in 1/x+3 in the place of x  in f(x)

f(g(x))= f(\frac{1}{x+3})= (\frac{1}{x+3})^2 + 5(\frac{1}{x+3}) + 6

To simplify it we take LCD

LCD is (x+3)(x+3)

\frac{1}{(x+3)(x+3)}+5\frac{1*(x+3)}{(x+3)(x+3)}+\frac{6(x+3)(x+3)}{(x+3)(x+3)}

\frac{1}{x^2+6x+9}+\frac{(5x+15)}{x^2+6x+9}+\frac{6x^2+36x+54}{x^2+6x+9}

All the denominators are same so we combine the numerators

\frac{1+5x+15+6x^2+36x+54}{x^2+6x+9}

\frac{6x^2+41x+70}{x^2+6x+9}

Option D is correct

8 0
3 years ago
Read 2 more answers
A rental car company is running two specials. Customers can pay $40 to rent a compact car for the first day plus $2 for each add
svp [43]

Answer: 5

Step-by-step explanation:

The equation to solve this problem is 40 + 2x = 25 + 5x

Now, to solve for x you first need to subtract 25 from each side:

15 + 2x = 5x

Next, subtract 2x from each side:

15 = 3x

Finally, divide both sides by 3:

5 = x

Farid is renting the car for 5 additional days.

4 0
3 years ago
Amanda earned a score of 940 on a national achievement test that was normally distributed. The mean test score was 850 with a st
snow_lady [41]
<span>In math notation, we've done this: z = (X - μ) / σ = (940 - 850) / 100 = 0.90 where z is the z-score X is Vivian's score (940) µ is the mean (850) σ is the standard deviation (100) As you may know, in a normal distribution it's expected that about 68% of all observations will fall within 1 standard deviation of the mean, 95% will fall within 2 standard deviations, and 99% will fall within 3 standard deviations. 
940 lie before the first standard deviation, in which 16.5% is above it
since 940 is 0.9 from the mean and 0.1 from the first standard deviation
so above it is 17.5 % = 0.175 or about 0.18 </span>
4 0
3 years ago
Bill worked 24 hours last week and earns $8.25 per hour. what is the total amount of money he earned
11Alexandr11 [23.1K]

Answer:

198

You times 8.25 by 34 which would come out as 198

3 0
2 years ago
Other questions:
  • The mean finish time for a yearly amateur auto race was 185.19185.19 minutes with a standard deviation of 0.3410.341 minute. the
    12·2 answers
  • How many seconds are there in (a) one hour and thirty-five minutes and (b) one day?
    7·1 answer
  • Can someone please help
    12·1 answer
  • Pleas answer the question in the attached file.
    5·2 answers
  • Refer to the accompanying data set and construct a 9090​% confidence interval estimate of the mean pulse rate of adult​ females;
    9·1 answer
  • I need answers please.
    11·1 answer
  • Expand the following:<br> 1/5 (10x-25)
    9·1 answer
  • What is the slope of the line that passes through the points (6, 4) and (3,8)?
    11·1 answer
  • What is the value of |-8|
    15·2 answers
  • 5 gal. x 20 mpg = ? mi.
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!