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
labwork [276]
2 years ago
5

1 a) Find the value of 49^-1/2

Mathematics
2 answers:
Sedbober [7]2 years ago
6 0

Answer:

49 ^{  - \frac{1}{2} }  \\ (7 ^{2} ) ^{ -  \frac{1}{2} }  \\ 7 ^{2 \times  -  \frac{1}{2} }  \\ 7 ^{ \frac{ - 2}{2} }  \\  7^{ - 1} \\  \frac{1}{7 ^{1} }  \\  \frac{1}{7}

jarptica [38.1K]2 years ago
3 0

Answer:

± \frac{1}{7}

Step-by-step explanation:

Using the rules of exponents

a^{-m} = \frac{1}{a^{m} } , a^{\frac{1}{2} } = \sqrt{a} , then

49^{-\frac{1}{2} } = \frac{1}{49^{\frac{1}{2} } } = \frac{1}{\sqrt{49} } = ± \frac{1}{7}

You might be interested in
Convert 39 meters squared to yard square
horrorfan [7]

Answer:

I used this converter, very helpful

Step-by-step explanation:


5 0
3 years ago
X+1<br> -<br> and h(x) = 4 - X, what is the value<br> Oil CD<br> Nior<br> wla<br> olo
timofeeve [1]

Answer:

8/5

Step-by-step explanation:

(g\circ h)(-3) means g(h(-3)).

Start with the inside first: h(-3).

h(-3) means use the function called h and replace the x with -3.  The expression that is called h is 4-x.

4-x evaluated at x=-3 gives us 4-(-3)=4+3=7.

So the value for h(-3) is 7, or h(-3)=7.

Now this is what we thus far:

(g\circ h)(-3)=g(h(-3))=g(7).

g(7) means use the function called g and replace x with 7.   The expression that is called g is (x+1)/(x-2).

(x+1)/(x-2) evaluated at x=7 gives us (7+1)/(7-2)=(8)/(5)=8/5.

This is our final answer:

(g\circ h)(-3)=g(h(-3))=g(7)=\frac{8}{5}.

7 0
3 years ago
Hirva ate 5/8 of a medium pizza. Elizabeth ate 1/4 of the pizza. How much pizza did they eat altogether?
Tcecarenko [31]
5/8 + 1/4 = (5+2)/8 = 7/8
7 0
4 years ago
Read 2 more answers
Kelly took 12 pictures at school on Tuesday. She took 7 pictures at lunch and 5 pictures at recess. If she randomly selects a pi
goblinko [34]
D.  5/12 is your answer
3 0
3 years ago
Bill has 5 times as many baseball cards as Fred. Tim has 3 fewer than 4 times as many baseball cards as Fred. In all they have 1
son4ous [18]
67, 40 and 60 is how many each has
6 0
3 years ago
Other questions:
  • Please help me don’t skip!!
    10·1 answer
  • How many triangles can be constructed with three angles, each measuring 64°?<br><br> 10 POINTS
    10·1 answer
  • Jill and Mary are selling cheesecakes for a school fundraiser. Customers can buy pecan cheesecakes and apple cheesecakes. Jill s
    11·2 answers
  • GEOMETRY!!FIND THE AREA OF THE YELLOW REGION!! ROUND TO THE NEAREST TENTH EXPLAIN PLEASE!!
    15·2 answers
  • Find the measure of the arc or angle indicated
    7·1 answer
  • Miss Allen read for 3/4 of an hour less than the student who read the most. How long sis Miss Allen read for?
    9·1 answer
  • Aaron has $0.70 worth of nickels and dimes. He has a total of 8 nickels and dimes altogether. By following the steps below, dete
    8·1 answer
  • A button machine produces one button in 0.15 seconds. How many buttons are produced in 48.6 seconds?
    7·2 answers
  • A camera costs 115 Canadian dollars. If each Canadian dollar is worth 0.952 US dollars, how much will the camera cost in US doll
    6·2 answers
  • Find a solution to the inequality x &gt; 4.<br> A. 8<br> B. 3<br> C. 4<br> D. 0
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!