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
Feliz [49]
3 years ago
7

Evaluate the expression for x = 4, y=-2, z= -3. 2² + 8zy - y²

Mathematics
2 answers:
Nikitich [7]3 years ago
8 0

the answer is 53 I'm pretty sure

andrew11 [14]3 years ago
3 0

Answer:

Pretty sure its 53

Step-by-step explanation:

9+48-4

You might be interested in
In a random sample of 40 teenagers, 18 enjoy reading for fun, and in a random sample of 40 adults, 12 enjoy reading for fun. Do
Savatey [412]

Answer: Yes. The data provides convincing evidence.

Step-by-step explanation:

In a random sample of 40 teenagers, 18 enjoy reading for fun. The percentage of teenagers who enjoy reading for fun will be:

= 18/40 × 100

= 45%

In a random sample of 40 adults, 12 enjoy reading for fun. The percentage of adults who enjoy will be:

= 12/40 × 100

= 30%

Therefore, the proportion of adults who enjoy reading for fun is less than that of teenagers. Therefore, the data provides convincing evidence.

5 0
3 years ago
Assume that Brad makes an initial investment of $2,000. Use your formula to find the final balance of the savings account after
svetlana [45]

Answer:

The formula is 2000 x (1 + Rate/100)^15

5 0
3 years ago
Easton is going to invest $340 and leave it in an account for 8 years. Assuming the interest is compounded quarterly, what inter
Jlenok [28]

Answer:

100.7%

Step-by-step explanation:

Since the interest is compounded quarterly, and there are 4 quarters per year, that would leave us with 32 quarters total where interest is acquired. Now, we need to find the interest rate, that would be required in order to end up with 420 dollars after 32 quarters.

We can setup a formula using our period of time and the money he invested into the bank:

340(x)^{32}=420

We can divide 340 from both sides, and simplify the right side to 21 divided by 17:

x^{32}=\frac{21}{17}

Taking the 32th root of 21/17 is equal to 1.00662, which is equal to 100.0662%. To the nearest tenth of a percent, this is equal to 100.7%.

5 0
2 years ago
Find z. Just write the number. Answer should be a whole number. PLS HELP DUE IN 10 MINS WILL GIVE BRAINLIST
Delicious77 [7]

Answer:

square root of 338 or 18.38

Step-by-step explanation:

since a² and b² are equal, you would do 13² plus 13² then add those and you end up with 338. then you find the square root of 338 which is 18.38477631, or 18.38

5 0
3 years ago
Help with 2&3?? Please will mark brainiest of correct
Murrr4er [49]
2 wrong 3 right because you might added wrong
5 0
3 years ago
Read 2 more answers
Other questions:
  • What is the best approximation of the projection of (5, -1) onto (2, 6)
    13·2 answers
  • How many numbers between 100 and 200 can be expressed as powers of 2? Show the steps you followed. Which power of 2 is closest t
    9·1 answer
  • What 475 rounded to the nearest ten
    15·2 answers
  • Solve for the length x in the right triangle shown below
    6·1 answer
  • Find the equation of the line that passes through (3, 1) and has a y-intercept of –2.
    13·1 answer
  • Don wants to keep his favorite pine tree from being uprooted by heavy winds. He plans to tie 3 sections of rope to a band on the
    6·2 answers
  • If f (x ) = 3x , what is f (-2) and f (2)?
    7·2 answers
  • Find the missing length to the nearest teni
    10·1 answer
  • On Monday, 56 biographies were
    14·1 answer
  • 1. Antonio started the question 2x + 1 = 11 by writing 2x = 10. Which
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!