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
Temka [501]
3 years ago
8

Simplify: (3)+(-4) O A. -7 OB. 1 O c. 1 OD. 7

Mathematics
2 answers:
Lady bird [3.3K]3 years ago
8 0

Answer:

-1

Step-by-step explanation:

(3) + (-4) =

4-3= -1

Ksju [112]3 years ago
4 0

Answer:

it should be -1 because your going backwards from 3 to -1

Step-by-step explanation:

You might be interested in
Please help me with 3 and 4 and I think this problem is talking abt problem 2 I posted for help
Naddika [18.5K]
1/6 for the first question and 1/3 for the second
8 0
3 years ago
Questions 16-17 | Math 1 - 0 points Solve the graph Help needed !!
iris [78.8K]

Answer:

16) The area of the circle is 25.1 units²

17) JKLM is a parallelogram but not a rectangle

Step-by-step explanation:

16) Lets talk about the area of the circle

- To find the area of the circle you must find the length of the radius

- In the problem you have the center of the circle and a point on

 the circle, so you can find the length of the radius by using the

 distance rule

* Lets solve the problem

∵ The center of the circle is (1 , 3)

∵ The point on the circle is (3 , 5)

- Using the rule of the distance between two points

* Lets revise it

- The distance between the two points (x1 , y1) and (x2 , y2) is:

 Distance = √[(x2 - x1)² + (y2 - y1)²]

∴ r = √[(3 - 1)² + (5 - 3)²] = √[4 + 4] = √8 = 2√2 units

∵ The area of the circle = πr²

∴ The area of the circle = π (2√2)² = 8π = 25.1 units²

* The area of the circle is 25.1 units²

17) To prove a quadrilateral is a parallelogram, prove that every

     to sides are parallel or equal or the two diagonal bisect

     each other

* The parallelogram can be rectangle if two adjacent sides are

  perpendicular to each other (measure of angle between them is 90°)

 or its diagonals are equal in length

- The parallel lines have equal slopes, then to prove the

  quadrilateral is a parallelogram, we will find the slopes of

  each opposite sides

* Lets find from the graph the vertices of the quadrilateral

∵ J = (0 ,2) , K (2 , 5) , L (5 , 0) , M (3 , -3)

- The opposite sides are JK , ML and JM , KL

- The slope of any line passing through point (x1 , y1) and (x2 , y2) is

 m = (y2 - y1)/(x2 - x1)

∵ The slop of JK = (5 - 2)/(2 - 0) = 3/2 ⇒ (1)

∵ The slope of LM = (-3 - 0)/(3 - 5)= -3/-2 = 3/2 ⇒ (2)

- From (1) and (2)

∴ JK // LM

∵ The slope of KL = (0 - 5)/(5 - 2) = -5/3 ⇒ (3)

∵ The slope of JM = (-3 - 2)/(3 - 0)= -5/3 ⇒ (4)

- From (3) and (4)

∴ KL // JM

∵ Each two opposite sides are parallel in the quadrilateral JKLM

∴ It is a parallelogram

- The product of the slopes of the perpendicular line is -1

* lets check the slopes of two adjacent sides in the JKLM

∵ The slope of JK = 3/2 and the slope of KL = -5/3

∵ 3/2 × -5/3 = -5/2 ≠ -1

∴ JKLM is a parallelogram but not a rectangle

4 0
3 years ago
If the atomic number of an element is 7 and its mass number is 16, how many neutrons are in the atom's nucleus
Margaret [11]
Number of Neutrons = Atomic mass - Atomic number 
= 16 - 7 = 9

In short, Your Answer would be 9

Hope this helps!
7 0
3 years ago
ReWarding Brainly foR correct Answer
serious [3.7K]

Answer:

1 and 4 are statistical questions

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Lucía coria 4 millas cada mañana antes de ir a trabajar. no trabaja los domingos ¿cuántas millas corria Lucía en una semana?A.7B
geniusboy [140]

Se nos dice que Lucía corre 4 millas diarias. Ya que no corre los días domingo, entonces corre 6 días por semana, por lo tanto:

4\frac{millas}{dia}\times6dias=24\text{ millas}

Por lo tanto, Lucía corre 24 millas por semana.

4 0
1 year ago
Other questions:
  • Kathy starts with a number she adds 3 touring numbers then doubles the results finally she subtract 7 if she ended with nine wha
    11·1 answer
  • What is the approximate volume of a cone with a height of 9 fr and radius of 3 ft?
    15·1 answer
  • Mr. Young is offered an investment opportunity. Kyra says she will invest his money at a 6% simple interest rate over the next 7
    10·1 answer
  • Is "A quotient of a number and seven" a expression or equation
    5·1 answer
  • Using the figure at the left, complete the extended similarity statement:
    11·1 answer
  • Asnwer question in screenshot pls
    10·1 answer
  • A wheel has 10 equally sized slices numbered from 1 to 10.
    7·1 answer
  • Explain how you would use fractions bars to find the quotient of 10/12 ÷ 4/6.what is the quotient?
    11·1 answer
  • I’m quitting rob lox anyone want my account?<br> Yes I took a pic of my pass and user to not forget
    8·1 answer
  • Aba's dog was 5 1/2 inches tall when it was a puppy but is now 14 inches tall. Aba's dog grew n-inches.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!