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
ipn [44]
3 years ago
15

Evaluate: 8 - 9+(-2)

Mathematics
1 answer:
Kobotan [32]3 years ago
5 0
Evaluate : 8 - 9 + (-2)



8-9= -1 (because if you take away 9 from 8, you will end up with a negative number since there isn’t enough to take away.)

-1 + -2 = -3 (this is because when you are adding two negative numbers together, you will basically just add -1 and -2 as you would normally, then you would transfer the negative sign as well to make it -3)

Finally, your answer to this question is -3.
You might be interested in
What is the purpose of finding the slope of a line?
timama [110]
The purpose of finding the slope of a line is to measure the rate of change.
4 0
3 years ago
D. 25 <br> Math question please help
Wewaii [24]
Alright this one is really simple even though it looks like alot. Start by looking at what they give you.

LM=9, LM is congruent to SP so SP=9

Now NR=16 and both NP and PR are congruent to MS.

16÷2=8
NP and PR = 8, So, MS=8

SR=8, MP is congruent to SR so MP=8

Alright so what we've just found out is that SP=9, MS=8, MP=8

We have three the line segments that make up SMP now! Just add them together to get your answer.
9+8+8= 25
Answer = D. 25
6 0
3 years ago
QUESTION 1: To the nearest tenth, what is the area of a circle whose diameter is 21 inches? Use 3.14 for π . Enter your answer i
Rashid [163]
QUESTION 1: To the nearest tenth, what is the area of ​​a circle whose diameter is 21 inches? Use 3.14 for π. Enter your answer in the box.
 The area of ​​a circle given its diametrom by definition is:
 A = pi * (d / 2) ^ 2
 Substituting the value of the diameter we have and applying 3.14 for the value of pi, we have:
 A = (3.14) * (21/2) ^ 2
 A = 346.185
 Round to the nearest tenth:
 A = 346.2 in ^ 2
 Answer:
 The area of ​​a circle whose diameter is 21 inches is:
 A = 346.2 in ^ 2
 QUESTION 2: What is the circumference of a circle with a radius of 5.4 inches?
 
Enter your answer as a decimal in the box. Use 3.14 for pi. Round your answer to the nearest tenth.
 By definition, the circumference of a circle is given by:
 C = 2 * pi * r
 Where,
 r : radius of the circumference
 Substituting the values ​​we have:
 C = 2 * (3.14) * (5.4)
 C = 33,912 in
 Round to the nearest tenth:
 C = 33.9 in
 Answer:
 The circumference of a circle with a radius of 5.4 inches is:
 C = 33.9 in
 QUESTION 3: A scale model of an ancient Egyptian pyramid is 29 centimeters high, with a base length of 46 centimeters. The height of the real pyramid is 145 meters. What is the base length of the real pyramid? Enter your answer, in simplest form, in the box.
 The first thing we must do in this case is to find the scale factor.
 For this we use the relationship between the heights.
 We have then:
 145 = k * 0.29
 From here, let's clear k:
 k = (145) / (0.29)
 k = 500
 We now apply the scale factor to find the actual length of the base:
 b = k * 0.46
 b = 500 * 0.46
 b = 230 m
 Answer:
 
The base length of the real pyramid is:
 b = 230 m

 QUESTION 4: Which expression is equivalent to 13 (4-5x-1)?
 For this case what you should do is rewrite the expression:
 13 ((4-1) -5x)
 13 (3-5x)
 Now we apply the commutative property:
 39-65x
 Answer: 
 An expression that is equivalent to 13 (4-5x-1) is:
 39-65x
3 0
3 years ago
Read 2 more answers
What is the center of the circle given by the equation (x + 5)2 + (y - 3)2 = 1?
Viefleur [7K]

Answer:

Step-by-step explanation:

6 0
3 years ago
Choose the correct answers.
artcher [175]
I am extremely confused on what you need done here so if you can explain it feel better then I’d be glad to help you.
8 0
3 years ago
Other questions:
  • A bag contains 8 red crayons, 14 purple crayons, 6 yellow crayons, and 4 Green crayons. A crayon is selected, NOT replaced, then
    11·2 answers
  • Identify a horizontal or vertical stretch or compression of the function ƒ(x) = x2 by observing the equation of the function g(x
    7·1 answer
  • Giving 30 points to a good explanation/answer.
    9·2 answers
  • Why is the derivative equals to 0?
    14·1 answer
  • Factor completely 3x2 − x − 4.
    13·2 answers
  • WILL GIVE BRAINLIEST AND 15 POINTS IF YOU ANSWER MY LATEST MATH QUESTION
    11·1 answer
  • WILL GIVE BRAINLY 50 PTS
    11·2 answers
  • The set of ordered pairs below is a relation. {(0.5,2), (1.5,5), (4.0,12), (6.5,15)} Which relation has the same domain as the g
    12·1 answer
  • Harpreet gave her car for service at the service station and was charged as follows: a) 3.1 litres engine oil at the rate of rup
    8·1 answer
  • The graph of a function f is shown below.<br> Find f(0)
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!