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
kifflom [539]
3 years ago
10

Humberto evaluates the expression 4t² for t=3. what is the answer??

Mathematics
1 answer:
Artist 52 [7]3 years ago
7 0
4t<span>²
= 4(3)</span><span>²
= 4 x 9 
= 36</span>
You might be interested in
How do solve this equation step by step
Kryger [21]

Answer: 15n³-105n²+2n+16/6n²-42n

Step-by-step explanation:

n+8/3n²-21n +5n/2

2(n+8)+5n(3n²-21n)/2(3n²-21n)

2n+16+15n³-105n²/6n²-42n

15n³-105n²+2n+16/6n²-42n

7 0
3 years ago
A box contain 12 balls in which 4 are white 3 are blue and 5 are red.3 balls are drawn at random from the box.find the chance th
Anastasy [175]

Answer:

3/11

Step-by-step explanation:

From the above question, we have the following information

Total number of balls = 12

Number of white balls = 4

Number of blue balls = 3

Number of red balls = 5

We solve this question using combination formula

C(n, r) = nCr = n!/r!(n - r)!

We are told that 3 balls are drawn out at random.

The chance/probability of drawing out 3 balls = 12C3 = 12!/3! × (12 - 3)! = 12!/3! × 9!

= 12 × 11 × 10 × 9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1/(3 × 2 × 1) × (9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1)

= 220 ways

The chance of selecting 3 balls at random = 220

To find the chance that all the three balls are selected,

= [Chance of selecting (white ball) × Chance of selecting(blue ball) × Chance of selecting(red balls)]/ The chance/probability of drawing out 3 balls

Chance of selecting (white ball)= 4C1

Chance of selecting(blue ball) = 3C1 Chance of selecting(red balls) = 5C1

Hence,

= [4C1 × 3C1 × 5C1]/ 220

= 60/220

= 6/22

= 3/11

The chance that all three are selected is = 3/11

4 0
3 years ago
Eliza’s backpack weighs 18 and StartFraction 7 over 9 EndFraction pounds with her math book in it. Without her math book, her ba
kramer

Answer:

about 3.9 lbs

Step-by-step explanation:

18 7/9 lbs - 14 7/8 lbs

convert mixed numbers to improper fractions

169/9 - 119/8

convert to common denominator

1352/72 - 1071/72

subtract numerators

281/72

about 3.9 lbs

4 0
3 years ago
Read 2 more answers
Find the limit (Picture Provided)
aev [14]

As long as g(x) (or whichever function appears in the denominator) does not approach 0 as x\to c,

\displaystyle\lim_{x\to c}\frac{f(x)}{g(x)}=\frac{\lim\limits_{x\to c}f(x)}{\lim\limits_{x\to c}g(x)}

In this case,

\displaystyle\lim_{x\to4}\frac gh(x)=\lim_{x\to4}\frac{g(x)}{h(x)}=\frac0{-2}=2

so the answer is B.

8 0
3 years ago
Read 2 more answers
Help please!! Thank you :)
DedPeter [7]

Answer: 5:3, 5/3, 5 to 3

Step-by-step explanation:

5 0
1 year ago
Other questions:
  • ​ △ABC∼△EFG ​.<br><br> Given m∠C=52° and m∠E=61° , what is m∠B ?
    10·2 answers
  • What causes sweating during running in order to maintain homeostasis?
    10·1 answer
  • Dons class rents a bus for $168. They want to take the bus to the theater. What is the total cost of the bus rental and theater
    5·1 answer
  • Is 1 21/25 equivalent to 1.72
    15·1 answer
  • Write an equation in slope Intercept form for the line with slope
    11·1 answer
  • Factorize:
    10·1 answer
  • Can someone help please? i don’t wanna fail :(
    8·1 answer
  • Convert the improper fraction to a whole or mixed number. (Enter your answer as a simplified mixed number.)
    13·1 answer
  • Find the hcf of 12,15 and 20​
    5·1 answer
  • Need help with math problem give 5 star if do
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!