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
Yuki888 [10]
3 years ago
5

Find area A of the polygon with the given vertices A(-5,-2) B(4,-2) C(4,-7) D(-5,-7)

Mathematics
1 answer:
mrs_skeptik [129]3 years ago
6 0
It probably is c because every one knows c is always right
You might be interested in
The rate 165 ounces and 11 boxes describes the relationship between the number of boxes and the weight of the crackers in the bo
barxatty [35]
165 ounces for 11 boxes.  I want to know the weight of 1 box.  How do I get 11 boxes to be 1 box.  Divide it by 11.

11/11 = 1 box.  Since I chose 11 I have to also use 11 for the ounces
165/11 = 15 ounces per box
4 0
3 years ago
Read 2 more answers
How many kilograms of a 5% salt solution and how many kilograms of a 15% salt solution must be mixed together to make 45kg of an
JulsSmile [24]

Answer:

31.5 kilograms of a 5% salt solution and 13.5 kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution .

Step-by-step explanation:

Let us assume that the number of kilograms of a 5% salt solution used be x .

Let us assume that the number of kilograms of a 15% salt solution used be y .

As given

A 5% salt solution and 15% salt solution must be mixed together to make 45kg of an 8% salt solution .

Equation becomes

x + y = 45

5% is written in the decimal form .

= \frac{5}{100}

= 0.05

15% is written in the decimal form .

= \frac{15}{100}

= 0.15

8% is written in the decimal form .

= \frac{8}{100}

= 0.08

Thus

Concentration of 5% salt solution × Number of kilograms of 5% salt solution used + Concentration of 15% salt solution × Number of kilograms of  15% solution used = Concentration of 8% salt solution × Number of kilograms of 8% salt solution

Thus

0.05x + 0.15y = 0.08 × 45

Simplify the above

\frac{5x}{100} + \frac{15y}{100} = \frac{8\times 45}{100}

5x + 15y = 360

Thus two equations becomes

x + y = 45

5x + 15y = 360

Multiply x + y = 45 by 5 and subtracted from 5x + 15y = 360 .

5x - 5x + 15y - 5y = 360 - 225

10y = 135

y = \frac{135}{10}

y = 13.5 kilograms

Put value of y in the equation

x + 13.5 = 45

x = 45 - 13.5

x = 31.5 kilograms

Therefore the 31.5 kilograms of a 5% salt solution and 13.5 kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution .

5 0
2 years ago
vareriya wants to determine the likely voting outcome for the new town council election. whick sample is likely yo yield mist ba
Naddik [55]
I cant understand the question but please re write this because im lost 

4 0
3 years ago
Read 2 more answers
What is the circumference for this circle?
Nataliya [291]

Answer:

75

Step-by-step explanation:

3 0
3 years ago
Solve C = 2πr (solve for "r")<br> C = 15
Jobisdone [24]
C = 2 pi r

but c = 15

15 = 2 pi r
15 = 2 * (22/7) * r
r = (15*7) / 2 / 22
r = 2.386
6 0
3 years ago
Read 2 more answers
Other questions:
  • You pick a number that is at least 2 with numbers 1-8
    5·1 answer
  • Which set of values could be the side lengths of a 30-60-90 triangle? A. {4, 4 square root of 3, 8} B. {4, 4 square root of 2, 8
    14·2 answers
  • Determine how many, what type, and find the roots for f(x) = x3 - 4x2 – 16x + 64. <br> SHOW WORK!
    12·1 answer
  • Evaluate the function.<br><img src="https://tex.z-dn.net/?f=f%28x%29%20%3D%20%20-%20x%5E%7B2%7D%20%20-%207x%20-%205" id="TexForm
    8·1 answer
  • Which expression is equivalent to the given expression after using the distributive property? 6 · 13 + 6 · 7 A. 6 (13 + 7) B. 6
    8·1 answer
  • Josie bought a new mirror. The mirror has 5 sides. What is the shape of the mirror?
    10·2 answers
  • Please help me <br> AND THIS IS THE LAST ONE I SWEAR
    15·2 answers
  • Evaluate -4x^2 + 2x - 6 when x = -2.
    7·1 answer
  • Which inequality is shown in the graph?
    15·1 answer
  • FIRST ANSWER WILL GET BRAINLIEST In parallelogram EFGH, m∠1 = 3x – 5, m∠2 = x + 10, and m∠3 = 2x + 15.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!