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
CaHeK987 [17]
3 years ago
15

Evaluate 3m2 -4 if m = -3​

Mathematics
1 answer:
zhenek [66]3 years ago
8 0

Answer:

23

Step-by-step explanation:

3m^{2} - 4 = 3 * (-3)^{2} - 4 = 3 * 9 - 4 = 27 - 4 = 23

You might be interested in
Find g (x) - f (x). <br><br> g (x) = x^2 + 1 and f (x) = 2x + 5
allochka39001 [22]

Answer:

x^2 - 2x - 4

Step-by-step explanation:

g(x) - f(x) = (x^2 + 1) - (2x + 5) = x^2 + 1 - 2x -5 = x^2 -2x +(1-5) = x^2 - 2x - 4

6 0
3 years ago
Round 14 17/21 to the who number​
kaheart [24]

Answer: 15 !

Step-by-step explanation:

14 17/21 can be re-written as 14.8095

Which rounds to 15.

Hope this helped! :)

4 0
3 years ago
Read 2 more answers
The probability of getting a 4- bedroom home with a open porch based off the table.
AleksandrR [38]
All you have to do is multiply 1/3 (the chance of getting a 4 bedroom home) times 1/2 (the chance of getting an open porch). The answer is a 1/6 chance, as you don’t have to do anything with the kitchens because the question doesn’t specify to.

Hope this helps!
4 0
3 years ago
Teresa runs each lap in 5 minutes. She will run less than
horrorfan [7]

Answer:

11 laps i think

Step-by-step explanation:

mark brainliest and have a great day!

5 0
3 years ago
a flag pole that is 8 feet tall casts a shadow that is 6 ft long a nearby tree casts a shadow that is 21 ft long. How tall is th
Andru [333]

Answer:

The tree is 28 feet tall.

Step-by-step explanation:

It is given that:

Height of flag pole = 8 feet

Shadow of flag pole = 6 feet

Ratio of height to shadow = 8 : 6

Shadow of nearby tree = 21 feet

Height of nearby tree = x

Ratio of height to shadow = x : 21

8 : 6 :: x : 21

Product of means = Product of extremes

6x = 8*21

6x = 168

Dividing both sides by 6

\frac{6x}{6}=\frac{168}{6}\\x=28

Therefore,

The tree is 28 feet tall.

7 0
3 years ago
Other questions:
  • Nyoko needs to be at school at 7:45 AM. It takes her 15 minutes to walk to school, 5/12 hour to eat breakfast, 0.7 hour to get d
    5·1 answer
  • The solution set of x^2-2x-8=0
    10·1 answer
  • I really need help on this im bad at math anyway but i cant see graphs clearly first good answer will get brainliest Please help
    6·2 answers
  • What is the distance between the points (-8, 26) and (6, 26) in the coordinate plane?
    12·2 answers
  • What expressions are equivalent to 3 and 7tenths ​
    14·1 answer
  • Which is a correct verbal expression for
    8·1 answer
  • Help pleaseee!!! He didnt go over how to do it in class....
    5·1 answer
  • A person has 50,000 in taxable income for a year and pays a 10 percent income tax rate equal to 5,000 which action would reduce
    6·2 answers
  • Can someone plz help me put this in its right order i got it wrong the first time
    14·1 answer
  • I am stuck here plz help I am so sick of this question
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!