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
Arturiano [62]
4 years ago
12

Evaluate each expression if x = −2, y = −3, and z = 5.

Mathematics
1 answer:
Scrat [10]4 years ago
3 0
Basically what you have to do is substitute the variables for the values

-4+-9+5= -8
-2-3= -5
2= 2 
6-4+1= 3
-9(-2+-4--3)= 27

You might be interested in
Which expression has a value of 22? A. 14 + 2 x 5. B. (14+2) x 5 C. 24 - 6÷ 3. D. (24 - 6) ÷ 3
zimovet [89]

Use PEMDAS:

P Parentheses first

E Exponents (ie Powers and Square Roots, etc.)

MD Multiplication and Division (left-to-right)

AS Addition and Subtraction (left-to-right)

A. 14 + 2 × 5 = 14 + 10 = 24 ≠ 22

B. (14 + 2) × 5 = 16 × 5 = 80 ≠ 22

C. 24 - 6 ÷ 3 = 24 - 2 = 22

D. (24 - 6) ÷ 3 = 18 ÷ 3 = 6 ≠ 22

<h3>Answer: C.</h3>
5 0
3 years ago
Read 2 more answers
Describe in words the region of R3 reperesented by the equations or inequalities x2+y2+z2≤3
Vaselesa [24]

Answer:

The region represented by the equation is a full sphere of radius √3 centered in the origin of coordinates.

Step-by-step explanation:

<em>In a plane xy, the equation that represents a circle with center in the origin, of radius r is</em>

x^2+y^2=r^2

<em>in R³, or a space xyz, we can represent a sphere with its center in the origin, and of radius r, with the equation</em>

x^2+y^2+z^2=r^2

So, in this problem we have that

3=r^2

which means that the sphere has a radius of √3.

<u>Finally, our equation is an inequality</u>, and the sphere is equal to, and less than, the calculated radius.

Therefore, the sphere is "full" from the surface to its center.

8 0
3 years ago
The volume of a cylinder is 441 cubic centimeters and its radius is 7 centimeters.
NISA [10]

Answer:

689 ft

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Answer my question and i will mark you as brainliest its that easy, trust me i promise
Lesechka [4]

Answer:

Hope that help the answer is 300

Step-by-step explanation he drives for 3 hours at a rate of 80 km per hour, multiply:

Now we need to find how far he goes in 45 minutes. There are 60 minutes in an hour, so write and simplify:

45 is three quarters of an hour, so multiply that by 80 km per hour:

Add the distances together:

At a rate of 80 km per hours, in 3 hours and 45 minutes, Tim drives 300 km.

Finito.

R

7 0
3 years ago
Read 2 more answers
The distance around a meteor crater is 9,033ft. Find the diameter of the crater. Use 22/7 for pi. Round to the nearest tenth
Aleonysh [2.5K]
<span>We know that the circumference of a circle is equal to pi times the diameter of the circle. Therefore, assuming this crater to be circular in shape, we can divide the circumference by pi, in this case 9033*7/22, yielding an answer of 2874.1 feet after rounding.</span>
3 0
3 years ago
Other questions:
  • 3p(2p^2–2) Please do. QUICKLY!<br><br><br><br> y e s
    9·2 answers
  • the value of peters house has risen 20% a year for the last 3 years. if the value of peters home 3 years ago was $120,000.00, wh
    14·2 answers
  • What are the coordinates of side HI? (–8, 1) and (–4, –3) (–4, 7) and (–2, 5) (1, –8) and (–3, –4) (7, –4) and (5, –2)
    15·1 answer
  • What is this please help
    5·2 answers
  • You earn a 12% commission for every car you sell. How much is your commission if you sell a $23,000 car?
    14·1 answer
  • What is 129 multiply by 75
    15·2 answers
  • 15 + ( -11)3 please help
    6·2 answers
  • A store employees 11 women and 12 men.what percentage of employees are men?
    11·2 answers
  • 15 POINTS! GIVE REAL ANSWERS PLEASE. HELP WOULD BE MUCH APPRECIATED THANKS!
    12·1 answer
  • What os 3.6% of 82 and explain plz
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!