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
hammer [34]
3 years ago
10

Evaluate the following algebraic expression if a equals 3 and b equals 4 2a^+5b

Mathematics
1 answer:
Korolek [52]3 years ago
6 0
Replace a and b with their number value:

2a^2 + 5b = 2(3)^2 +5(4)
 do the 3^2 first: 3^2 = 9
 so now you have 2(9) +5(4)
 now multiply both sets of numbers: 2 x 9 = 18 and 5 x 4 = 20
 now add them:

18 +20 = 38




You might be interested in
Mattias gets dressed in the dark one morning and chooses his clothes at random. He chooses a shirt (green, red, or yellow), a pa
Oliga [24]

Answer:

So, the number of ways in which the dress can be chosen

= 3 × 2 × 2

= 12.

And the combinations are

(Green shirt, black pant, checkered shoes),

(Green shirt, black pant, red shoes),

(Green shirt, blue pant, checkered shoes),

(Green shirt, blue pant, red shoes),

(Red shirt, black pant, checkered shoes),

(Red shirt, black pant, red shoes),

(Red shirt, blue pant, checkered shoes),

(Red shirt, blue pant, red shoes),

(Yellow shirt, black pant, checkered shoes),

(Yellow shirt, black pant, red shoes),

(Yellow shirt, blue pant, checkered shoes),

(Yellow shirt, blue pant, red shoes).

The tree diagram is below.

Step-by-step explanation:

7 0
3 years ago
what is range of the inverse of the relation {(1, 7), (-2, 4), (5, 6), (2, 8)} A. {1, 2,5} B. {-4, 6, 7, 8} C. {1, 5} D. {-4, 7,
Rufina [12.5K]
The answer should be the domain of this relation. {-2, 1, 2, 5} but I do not see that as one of your answer choices.

The inverse of a relation is when you switch the domain and range.  In other words, the domain of the original relation becomes the range of the inverse.
8 0
3 years ago
How many times does 16 go into 1,440?
Sergio039 [100]
It goes into 1,440 exactly 90 times.

To figure this problem out on your own, next time, just type into your calculator or work out on your paper 1,440 divided by 16 and then you'll get your answer :)


7 0
3 years ago
Read 2 more answers
125 feet in 5 seconds as a unit rate
chubhunter [2.5K]
 125 feet in 5 seconds as a unit rate would be125/5 or 25/1
6 0
4 years ago
Read 2 more answers
Write an equation in point-slope form for the line that passes through the point with the given slope. (–2, 11), m=43
frosja888 [35]

Answer:

y-11=43(x+2)

Step-by-step explanation:

y-y1=m(x-x1)

y-11=43(x-(-2))

y-11=43(x+2)

4 0
3 years ago
Other questions:
  • A<br>AB corresponds to which line segment?<br>O CD<br>OBC<br>O DE<br>OCE<br>none of the above​
    13·1 answer
  • The time to complete an exam is approximately Normal with a mean of 70 minutes and a standard deviation of 10 minutes. Using the
    13·1 answer
  • Gregory noticed that his plant had grown 1.5 inches every two weeks since the day it sprouted. He created a table to show the pl
    11·2 answers
  • Please help me I’ve been trying
    14·1 answer
  • A line is in point-slope form and and passes through points (-4,-3) and (12,1) and is y-1= 1/4(x-12) what is the standard form o
    8·1 answer
  • Martinez purchased a pair of shoes on a web site. The original price of the shoes was $75. She used a coupon code to receive a 2
    5·2 answers
  • The local dealership advertised 0% APR for 48 months on a new car with MSRP of $28,650. How much interest would you be paying af
    10·1 answer
  • G(x)=3x-4, find g(1)
    5·1 answer
  • Simply the expression by combining like terms.<br> 9x+8+3x+4=
    14·2 answers
  • Write an inequality using variables x and y whose graph is described by the given information. The points (2,5) and (-3,-5) lie
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!