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
Andrews [41]
3 years ago
6

Evaluate the function y = x² - 4; x = -5

Mathematics
1 answer:
sveta [45]3 years ago
6 0

Answer: y= 21

Step-by-step explanation: Hope this helps Have a brilliant day- Lily ^_^

You might be interested in
An ice cream shop offers the toppings below. How many 4-topping ice cream sundaes can you make?
marishachu [46]
Combinations of 7 taken 4 at a time. 
C (7,4)  = 7!  /[  4!(3!)]
7 x 6 x 5 = 210 
210 divided by 3 = 70 
70 divided by 2 = 35
8 0
3 years ago
Frank created a circle graph to show how he spent his time one day. He spent 8 hours at school, 8 hours sleeping, and the rest o
Valentin [98]
If there are 24 hours a day, he hangs out 8 hours a day since 24-8-8=16

All activities are eqyal to 8/24, which simplifies to 1/3.

1/3 as a percent is 33.33...%

He should include 33.33..% three times in his circle graph.
3 0
3 years ago
Read 2 more answers
What is the simplest form of 4 square root 81x^8y^5?
olasank [31]
Firstly,
thanks for posting this.

81 = 9x9 or 9 squared so at this stage I'm guessing the last two. 
x^ 8 = (x^ 4) x (x^ 2) (its called the multiplication rule of indices). 
Okay I have approx 14 mins to answer.
No panic
√ 81.x^8 x <span>√ y^5
</span>√ (9x^2 x 9x^6) x <span>√ y^5
</span>= 9x x <span>√ 9x^6 x  </span><span>√ y^5
</span>did I just gain time?
√ 9x^6 = <span>√ </span>3x ^3 x <span>√ 3x ^ 3
</span>or 2 . √ 3x^3. <span>√ y^5
</span>more time
okay, so that wasnt successful. 
√ 9x^6 =<span>√ </span> (3x^2) x <span>√ </span>(3x^4)




5 0
3 years ago
Which expressions are equivalent
Kazeer [188]

Step-by-step explanation:

The first set is equivalent.

We obtain the right-hand side by swapping places of the terms.

5 0
3 years ago
Evaluate the expression if m = 3.<br><br> 3m^2<br><br><br> (SHOW YOUR WORK)
iragen [17]

The value of given expression when m = 3 is 27

<h3><u>Solution:</u></h3>

Given expression is 3m^2

We have to evaluate the given expression for m = 3

To find for m is equal to 3, substitute m = 3 in given expression

From given expression,

\rightarrow 3m^2

Plug in m = 3 in above expression

\rightarrow 3(3)^2 ------ eqn 1

We know that,

a^2 can be expanded as,

a^2=a \times a

Applying this in eqn 1, we get

\rightarrow 3(3)^2=3 \times (3 \times 3)

Simplify the above expression

\rightarrow 3(3)^2=3 \times (3 \times 3) = 3 \times 9 = 27

Therefore, for m = 3 we get,

\rightarrow 3(3)^2=27

Thus value of given expression when m = 3 is found

5 0
3 years ago
Other questions:
  • 600+15y=750.<br> solve for y<br> can I as well have the way you solved for y?
    15·2 answers
  • Select the action you would use to slove x-3=12
    8·2 answers
  • Last Sunday an accident caused a traffic jam 12 miles long on a straight stretch of a two lane freeway. how many vehicles do you
    5·1 answer
  • Can you help me find the answer to -1/3+-7/4
    15·2 answers
  • Factor completely<br> (X^2 + x - 6) (2x^2 + 4x) =
    11·1 answer
  • Fully factorise 15ab - 35a
    12·1 answer
  • Solve the equation then write how many solutions there is in this problem: 8x-3+14=24x+5
    11·1 answer
  • Simplify x^1/3(x^1/2+2x^2)
    8·1 answer
  • Please help 20 points And please work out how you did it step by step and in your words
    12·1 answer
  • Need help asap please
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!