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
Yuliya22 [10]
3 years ago
14

If a= -2, b=3 evaluate the expression 2a-3b

Mathematics
2 answers:
tia_tia [17]3 years ago
7 0
2x-2-3x3 =-13. -13 is the answer
VikaD [51]3 years ago
4 0

Answer:

-13

Step-by-step explanation:

2(-2 )- 3(3)

-4-9

=-13

You might be interested in
Given the following sequence, find the 25th term: 0, 1, 2, 3, 4, . . .
Inessa05 [86]
If u follow the sequence your adding one so it would be 25
5 0
3 years ago
Read 2 more answers
Please explain, thank you!!
jeka57 [31]
(Pi* r^2) = the area of the circle, or cross section 

= 201.06

Multiply by the height for volume, *12

= 2412.74 -- this is the total volume

now *2/3 to get the answer 

=1608.5

I dont know what the units are, they aren't given 
5 0
3 years ago
Lily recieves 30 messages on her cell phone.Of those messages,1 over 5 are picture messages and 7 over 8 of the remainder are te
lesantik [10]
So we are starting out with 30 messages.

If 1/5 of the messages Lily receives are picture messages, then take 1/5 x 30 to find out how many that is.

1/5 x 30 = 30/5 = 6. So Lily receives 6 picture messages. 

If 7/8 of the remaining messages are texts, then we need to find the number of remaining messages. If 6 are pictures and she receives 30 overall, then 30 - 6 = 24, the remaining number of messages. Since we know 7/8 of <em>this </em>number is the number of texts Lily received, let's do some more multiplication:

7/8 x 24 = (7 x 24)/8 = 168/8 = 21.

So Lily received 21 text messages, 6 picture messages, and 3 of something else!
3 0
4 years ago
Why is y^2=x+2 not a function?
tia_tia [17]
Cause its not :/ why would it be

4 0
3 years ago
Suppose the scores on an exam are normally distributed with a mean μ = 75 points, and standard deviation σ = 8 points. Suppose t
alexandr402 [8]

Answer:

89.008

Step-by-step explanation:

z = (x– mean)/ standard deviation

x = z * standard deviation + mean

Now, z value for the top 4% of the exams (which is the same as getting a score below the 96%) has to be found using a z table.

In this case z = 1.751

x = 1.751 * 8 + 75

x = 89.008

6 0
3 years ago
Other questions:
  • Find the value of x and y.
    8·2 answers
  • What is special about a radioactive cat?
    12·2 answers
  • On a paystub what is the difference between net pay and YTD net pay
    7·1 answer
  • The store sells 24 candy bars for $12. Which of these is NOT a unit rate to describe this sale?
    5·2 answers
  • How do i solve this question? and whats the answer?
    15·2 answers
  • Match the expressions given in words with their values when m=6.
    6·1 answer
  • Amanda's dog eats 7 1/2 Pounds of dog food in 2 weeks how much does amandas dog eat each day?
    8·2 answers
  • John paints blue spots on his car. He usually paints these blue spots in pairs. If the total count of blue spots is 72, how many
    9·1 answer
  • (NEED ANSWER ASAPPPPPPPP!!!)
    7·2 answers
  • Bill would have the same amount of money as Angela if he gave her $8. If
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!