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
ki77a [65]
3 years ago
10

What does 100-55 equal.

Mathematics
2 answers:
Softa [21]3 years ago
5 0

Answer:

45

Step-by-step explanation:

Mice21 [21]3 years ago
5 0

Answer:

45

Step-by-step explanation:

so uh- if you can't do it right away you can try just thinking of it at 100-50 which is the same at 100/2 then so it's 50 but you have to subtract 55 so ull subtract 5 and it'll be 45...

sorry if it sounds weird, im not a teacher lol

You might be interested in
Find the length of the curve given by ~r(t) = 1 2 cos(t 2 )~i + 1 2 sin(t 2 ) ~j + 2 5 t 5/2 ~k between t = 0 and t = 1. Simplif
xxMikexx [17]

Answer:

The length of the curve is

L ≈ 0.59501

Step-by-step explanation:

The length of a curve on an interval a ≤ t ≤ b is given as

L = Integral from a to b of √[(x')² + (y' )² + (z')²]

Where x' = dx/dt

y' = dy/dt

z' = dz/dt

Given the function r(t) = (1/2)cos(t²)i + (1/2)sin(t²)j + (2/5)t^(5/2)

We can write

x = (1/2)cos(t²)

y = (1/2)sin(t²)

z = (2/5)t^(5/2)

x' = -tsin(t²)

y' = tcos(t²)

z' = t^(3/2)

(x')² + (y')² + (z')² = [-tsin(t²)]² + [tcos(t²)]² + [t^(3/2)]²

= t²(-sin²(t²) + cos²(t²) + 1 )

................................................

But cos²(t²) + sin²(t²) = 1

=> cos²(t²) = 1 - sin²(t²)

................................................

So, we have

(x')² + (y')² + (z')² = t²[2cos²(t²)]

√[(x')² + (y')² + (z')²] = √[2t²cos²(t²)]

= (√2)tcos(t²)

Now,

L = integral of (√2)tcos(t²) from 0 to 1

= (1/√2)sin(t²) from 0 to 1

= (1/√2)[sin(1) - sin(0)]

= (1/√2)sin(1)

≈ 0.59501

8 0
3 years ago
I need help on question 7 and 8
DanielleElmas [232]
7.
remember
(ab)/(cd)=(a/c)(b/d)
we can split them up
and
(x^m)/(x^n)=x^(m-n)

\frac{27k^5m^8}{4k^3*9m^2}=  \frac{27k^5m^8}{36k^3m^2}=( \frac{27}{36} )( \frac{k^5}{k^3} )( \frac{m^8}{m^2} )=( \frac{3}{4})(k^{5-3})(m^{8-2} )=( \frac{3}{4})(k^2)(m^6 )= \frac{3k^2m^6}{4}



9.

2 to 3
4(x-1)=15
to
4x-1=15
the distribuutive prperty
a(b-c)=ab-ac
what he did was
a(b-c)=ab-c

he did not distribute the 4 to the -1


4(x-1)+3=18
minus 3
4(x-1)=15
distribute  4 to x and -1
4x-4=15
add 4 to both sides
4x=19
divide by 4
x=19/4
4 0
3 years ago
If a tessellation is regular, how many sides can the tessellating regular polygon have?
inn [45]
For the answer to the question above, I think that only the <u><em>regular polygons that tessellate are equilateral triangles, squares, and regular hexagons.
</em></u>
I hope my answer helped you. Have a nice day!
4 0
4 years ago
Read 2 more answers
Which statement is true about the residual plot?
svetlana [45]

Answer: the first on

Step-by-step explanation:

3 0
3 years ago
The lengths of the sides of a triangle are y, y+1, and 7 cm if the perimeter is 56 cm what is the value of Y?
beks73 [17]

So first you combine all the equations and make them add up to 56.


The equation should look as such: 2y + 8 = 56


Then we solve for y


Work: 2y + 8 = 56

2y = 48

y = 24


I hope this helps!

5 0
4 years ago
Read 2 more answers
Other questions:
  • A box (with no top) is to be constructed from a piece of cardboard of sides a and b by cutting out squares of length h from the
    11·1 answer
  • Need help with a math question
    15·2 answers
  • What is the answer for the first one
    13·2 answers
  • PLEASE HELP DUE IN LESS THAN 5 HOUR
    15·1 answer
  • Sam is buying presents for his family.
    10·1 answer
  • A rock breaks loose from a cliff and plunges towards the ground 400 feet below. The distance 'd' that the rock falls in 't' seco
    14·1 answer
  • Y/4 - 4 = 3<br> Two Step Equation
    15·2 answers
  • Find the slopes of the linear functions.
    13·2 answers
  • What is the surface of a area of the square 10m 10m 8m
    10·1 answer
  • Find (ros)(z).
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!