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
KATRIN_1 [288]
3 years ago
12

Find the area of the triangle defined by the coordinates (7, 1), (0, 10), and (9, 4). (To the nearest tenth)

Mathematics
2 answers:
slega [8]3 years ago
4 0

Answer:

  C)  19.5 square units

Step-by-step explanation:

The area from coordinates can be computed as ...

  A = (1/2)|x1(y2 -y3) +x2(y3 -y1) +x3(y1 -y2)|

  = (1/2)|7(10 -4) +0(4 -1) +9(1-10)| = (1/2)|7·6 +9·(-9)|

  = (1/2)|-39| = 39/2 = 19.5

The area of the triangle is 19.5 square units.

Goryan [66]3 years ago
3 0

Answer:

19.5

Step-by-step explanation:

Use the distance formula: d =  

(x2 - x1)2 + (y2 - y1)2

A =  

1

2

bh =  

1

2

(

13

)(3

13

) = 19.5

You might be interested in
When measuring distance 43 peas are approximately equal to 19 beans. How many peas are equal to 133 beans?
nikdorinn [45]

Answer:

  301

Step-by-step explanation:

Assuming the proportion holds over longer distances, the ratios can be written ...

  peas/beans = p/133 = 43/19

  p = 133(43/19) = 301

301 peas are equal to 133 beans.

4 0
3 years ago
Heeeeelppp please, :) please
lara [203]

Answer:

7/6

Step-by-step explanation:

In order to find slope when you have two ordered pairs, you use this equation: (y2-y1)/(x2-x1)

In this case, when you plug them in, you get (49-7)/(42-6), which is 42/36, which is 7/6.

Hope this helped :)

4 0
3 years ago
Type the correct answer in the box,
HACTEHA [7]

<u>We'll assume the quadratic equation has real coefficients</u>

Answer:

<em>The other solution is x=1-8</em><em>i</em><em>.</em>

Step-by-step explanation:

<u>The Complex Conjugate Root Theorem</u>

if P(x) is a polynomial in x with <em>real coefficients</em>, and a + bi is a root of P(x) with a and b real numbers, then its complex conjugate a − bi is also a root of P(x).

The question does not specify if the quadratic equation has real coefficients, but we will assume that.

Given x=1+8i is one solution of the equation, the complex conjugate root theorem guarantees that the other solution must be x=1-8i.

3 0
3 years ago
What is the radius of the following circle
stepladder [879]
I got 11.5 lol I don’t really know why
4 0
3 years ago
What is 9.1 less than a number is less than 4.6 equals?
Brilliant_brown [7]

Answer:

n > 13.7

Step-by-step explanation:

Writing a symbolic statement, we get:

n - 9.1 < 4.6

Multiplying all three terms by 10 removes fractions:

10n - 91 > 46

Adding 91 to both sides isolates the 10n term:

10n > 46 + 91, or   10n > 137

Then n > 137/10, or n > 13.7

4 0
3 years ago
Other questions:
  • Your new cell phone plan charges $50 per month for 400 minutes of talk time. The plan charges $0.10 for each additional minute y
    7·1 answer
  • At a store customers are randomly selected to participate in the survey on Friday there were 500 customers at the store. of thos
    9·1 answer
  • I ALREADY SET UP THE GRAPH, I JUST NEED TO KNOW WHAT TO DO NEXT!
    7·2 answers
  • How can you find the gcf and common factors?
    8·1 answer
  • Help me , pleaseeeeeeeeeeee
    15·1 answer
  • John read the first 114 pages of the novel, which was 3 less than 1/3 of the novel
    7·2 answers
  • Jennifer makes 45 blueberry muffins using 6 cups of flour. What is the ratio of cups of flour to blueberry muffins?\
    13·1 answer
  • Does anyone know how to do this? If so please add steps. Geometry M1 Lesson 8 exit ticket
    9·1 answer
  • Please help me it would be AMAZING if you can!!!!
    10·2 answers
  • Is this a good drawing??
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!