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
Vikki [24]
3 years ago
9

Timothy evaluated the expression using x = 3 and y = –4. xy-2 3x2y−4 1. (1 3 )x−1y2 2. (1 3 )3−1(−4)2 3. (1 3 )(1 31 )(−4)2 4. (

1 3 )(1 3 )(−16) 5. −16 9
Mathematics
2 answers:
Sergio039 [100]3 years ago
5 0
If this is for E2020 the answer is
 D)<span>No, his value of </span><span> should be positive because an even exponent indicates a positive value. 
thats why it was wrong</span>
Jobisdone [24]3 years ago
3 0

Answer with explanation:

We have to evaluate the expression for, x=3 and y= -4 .The expression is

    \rightarrow x \times y^{-2} \times 3 \times x^2 \times y^{-4}\\\\ \rightarrow 3 x^{1+2} \times y^{-2-4}\\\\ \rightarrow 3 x^{3} \times y^{-6}\\\\=3 (3)^3 \times (-4)^{-6}\\\\=\frac{3^4}{4^6}\\\\ \text{used}x^a \times x^b=x^{a+b}\\\\x^{-a}=\frac{1}{x^a}

You might be interested in
Jennifer has 3 1/2 cups of jelly beans to share with 7 friends how many cups does each person get
AfilCa [17]
Divide 3 1/2 by 7= 1/2 a cup per person
6 0
3 years ago
Read 2 more answers
What is the sum of the measures of the interior angles of a 15-sided polygon?
AlladinOne [14]

Answer:

B. 2340

Step-by-step explanation:

Interior angles of a polygon is given by

(n – 2)180 where n is the number of sides

(15-2) *180

13*180

2340

3 0
4 years ago
A bus driver drives 547.25 miles on day 1 of a trip. On day 2, he drives 327.875 How many more miles did he drive the first day
stiv31 [10]
He drove 219.375 miles more on the fist day than the second day.
7 0
3 years ago
Read 2 more answers
the 22 students bought a Valentine's presents they purchased 2 dozen for 22.95$ per and a box of chocolates for 13.45$ they spli
irina [24]

Answer:

I think the answer is b

Step-by-step explanation:

I think its b because, $22.95 plus $13.45 equals $36.40. And divide that by 22, and get $1.60 rounded is $2.00. I hope this can help.

3 0
3 years ago
The equation of line AB is y= 5x+1 . Write an equation of a line parallel to line AB in slope intercept form that contains point
Nadusha1986 [10]
Slope intercept form is:  y=mx+b

For the other line to be parallel they must have the same slope so:

y=5x+b, using the point (4,5) we can solve for the y-intercept, or "b"

5=5(4)+b

5=20+b

b=-15 so the line is:

y=5x-15
5 0
3 years ago
Other questions:
  • He made a queen sized quilt that was 8 feet long its area was 64 square feet what was the permeter
    6·1 answer
  • Can any one please help me to do this I really need help I don’t really know this if someone can help me please
    6·2 answers
  • Compare partial products and regrouping how the methods are alike and different
    7·2 answers
  • 10 &lt; 3x + 19<br> Help ASAP time is running out !
    10·2 answers
  • Anyone know these???
    6·1 answer
  • 30 pts with brainliest!
    8·1 answer
  • What is the length of a rectangular garden whose perimeter is 32 cm and area 39 cm^2?
    8·2 answers
  • Find a possible value of b. 5x2 - bx - 8​
    9·1 answer
  • 4 painters can paint a room in 6 hours how long will it take 3 painters to paint the same room
    7·2 answers
  • Find the solution of the system of equations.<br> - 3x + 4y = 12<br> 2.x + 2y = -22
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!