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
shusha [124]
3 years ago
5

Please help me out guys, Thank you.I am very poor at mathematics​

Mathematics
1 answer:
Lesechka [4]3 years ago
7 0

Answer:

79

Step-by-step explanation:

Given the expression

x + 1/x = 9

Square both sides

(x + 1/x)^2 = 9^2

x^2 + 2x(1/x)+ (1/x)^2 = 81

x^2 + 2 + 1/x^2 = 81

x^2+1/x^2+2 = 81

x^2+1/x^2 = 81-2

x^2+1/x^2+ = 79

Hence the value of x^2+1/x^2 is 79

You might be interested in
In the figures, area of triangle ABE is 25 cm2
stira [4]

Answer:

sorry where is figure.

Step-by-step explanation:

area of triangle ABE=area of triangle BE3

4 0
3 years ago
PLS HELP THIS IS HARD ANYONE PLS
Valentin [98]

This question is very oddly worded.  The domain is the set of x-values, but this is a set of (x,y) ordered pairs.

I'm reading this question as "Here's a function, { (1,5), (2,1), (-1,-7) }.  If this is reflected over the x-axis, what's the range?"

Assuming that is the question that is meant to be asked, reflecting a function over the x-axis will just change the signs of the y-values.

    (1,5) -> (1,–5)

    (2,1) -> (2,–1)

    (-1,-7) -> (-1,+7)

I'd pick the third option.

6 0
3 years ago
What's the word name for 20,004? A. Two thousand four B. Two hundred thousand four C. Twenty thousand four D. Twenty thousand fo
Vika [28.1K]

Answer:

C

Step-by-step explanation:


8 0
3 years ago
Devon rented a U Haul truck for $48 for 4 hours plus $13.50 per each hour you go over. At the end of the day, his total bill was
Rasek [7]

Answer:

You need to write an equation to find the answer to this:

h = hours

48 + 13.5h = 112.50               -First you need to subtract 48 from both sides

48 - 48 + 13.5h = 112.50 - 48

13.5h = 64.5         -Now divide both sides by 13.5

13.5h / 13.5 = 64.5 / 13.5

h = 4.77777778

However, I would just round to 5.

I hope this helps!

-Mikayla



3 0
3 years ago
A turtle swims 1 7/8 miles in 1/6 hour.
FrozenT [24]

Answer:

Speed of turtle = 11.25 miles/hour

Step-by-step explanation:

1 7/8 miles / 1/6 hour

= 15/8 / 1/6

= 15/8 * 6

= 11.25 miles/hour

3 0
3 years ago
Read 2 more answers
Other questions:
  • Hint # 2 - First, rewrite the mixed numbers as fractions greater than one, then multiply.
    14·2 answers
  • A railway tunnel 147m long is to be bored with a circular cross section of radius 5m.what volume of soil has to be excavated?
    5·1 answer
  • You make 48 pints of pink paint by using 5 pints of red paint for every 3 pints of white paint.
    5·1 answer
  • Seven less than the product of a number and three equal to eleven
    11·1 answer
  • Find the product. 4(−12)(−3) A) −144 B) −96 C) 144 D) 72
    9·1 answer
  • A child ate 30 grams of cereal for breakfast and her brother ate 40% more than that. How many grams of cereal did the brother ea
    9·1 answer
  • 5.9q=23.6 plz help me
    8·2 answers
  • Can yall please help me, try to explain in steps, tyy
    10·1 answer
  • Find the volume of the rectangular prism. Write your answer as a fraction.
    8·1 answer
  • Which graph shows a line with an x-intercept of -5?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!