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
nika2105 [10]
3 years ago
15

Please help me please please please please please please please ​

Mathematics
1 answer:
Schach [20]3 years ago
7 0

Answer:

The leg measures 14.14 cm

Step-by-step explanation:

The "40 - 40 - 90" special right triangle is an isosceles right triangle because two angles measures the same. (Check the picture)

The legs are the same.

The hypotenuse is:

a × √2

From the question, the length of the hypotenuse is 20 cm.

20 = a × √2

20 ÷ √2 = a

a = 10√2 ≈ 14.14 cm

You might be interested in
Without actual calculating the cubes, evaluate using identities:<br> <img src="https://tex.z-dn.net/?f=-11%5E3%2B8%5E3%2B3%5E3"
djyliett [7]

Answer:

-792

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
During gym class, Lenny, Lonnie, and Lainey measure the length of their long jumps. Lenny’s jump is ⅔ times the length of Lainey
Svetllana [295]

Answer: Lonnie’s Jump

Step-by-step explanation:

         (They just <em>had</em> to give three names that all started with L.)

         Since Lenny's jump is ⅔ times the length of Lainey’s, we can tell that Lenny's jump won't be the longest because it is already smaller than Lainey's.

         Since Lenny is now out of the picture, let us look at Lonnie and Lainey. Lonnie’s jump is 1 ⅓ times the length of Lainey’s. Since Lonnie's jump is longer than Laniey's, Lonnie's jump is the longest jump.

3 0
2 years ago
How I can answer this question, NO LINKS, If you answer correctly I will give u brainliest!
zlopas [31]

Answer:

I pick a ,  and e

Step-by-step explanation:

a - Proportional relationship maybe because the line is slanted and the first dot is on 0 then it moves five up and if it keeps going on it would end up like a multiplication chart of the 5

hope this helped

e -  x on the line is 2    , y is  5 because graph 2 then moves up five times which will result to  (x 2,y 5)

hope this helped

7 0
2 years ago
Read 2 more answers
Two tanks hold a total of 55 gallons of a toxic solvent. One tank holds 4 gallons more than twice the amount in the other. How m
Serhud [2]

Step-by-step explanation:

If x is the volume of the first tank, and y is the volume of the second tank, then:

x + y = 55

x = 2y + 4

Solve the system of equations using either substitution or elimination.  Using substitution:

2y + 4 + y = 55

3y + 4 = 55

3y = 51

y = 17

Solve for x using either equation.

x + 17 = 55

x = 38

The first tank holds 38 gallons, and the second tank holds 17 gallons.

8 0
3 years ago
Read 2 more answers
Only one of the comparisons below is correct. Which is correct? What benchmark was used in your answer?
tiny-mole [99]

Answer:

2/3<9/10; I used 3/4 as a benchmark.

Step-by-step explanation:

2/3<1/2; I used 1/2 as a benchmark.

2/3 = 0.(20/3) = 0.667

1/2 = 0.(10/2) = 0.5

So this is wrong, as 0.667 > 0.5.

1/2=3/5; I used 1/4 as a benchmark.

1/2 = 0.(10/2) = 0.5

3/5 = 0.(30/5) = 0.6

0.5 != 0.6, so this is wrong.

2/3<9/10; I used 3/4 as a benchmark.

2/3 = 0.(20/3) = 0.667

9/10 = 0.(90/10) = 0.9

So this is correct, as 0.667 < 0.9

3/4<2/3; I used 1/2 as a benchmark.

3/4 = 0.(30/4) = 0.75

2/3 = 0.(20/3) = 0.667

0.75 > 0.667, so this is wrong.

5 0
3 years ago
Other questions:
  • Work out the volume of this prism.
    5·1 answer
  • How do I solve this three variable equation
    11·2 answers
  • Can someone please help me with this? will give you brainiest if correct
    15·1 answer
  • What is the value of min the 5/6m=15
    10·2 answers
  • A model of a house is shown. what is the perimeter in units of the model? To receive brainliest show all your work.
    15·1 answer
  • Can someone please work through this one question so I know what to do for the other 9? How the testing system works for me is t
    15·1 answer
  • assume that the class has 80 students and that the examination period is 95 minutes in length. How many students do you expect w
    10·1 answer
  • Francis deposits $11,000 in an IRA. What will be the value of his investment in 9 years if the investment is earning 4.1% per ye
    15·2 answers
  • PLEASE HELP !! ILL GIVE BRAINLIEST !!
    7·1 answer
  • Which expression is the factorization of x2 10x 21? (x 3)(x 7) (x 4)(x 6) (x 6)(x 15) (x 7)(x 14)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!