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
Naily [24]
2 years ago
5

Name the decimal: 2.45.

Mathematics
2 answers:
o-na [289]2 years ago
6 0
Two and forty five hundredths
Iteru [2.4K]2 years ago
4 0

Answer:

It would be B. because the decimal places go into the hundredths.

You might be interested in
Which graph represents the same relation as the set StartSet (negative 3, 2), (5, 5), (3, 3), (3, negative 2) EndSet?
ikadub [295]

Answer:

The second graph

Step-by-step explanation:

4 0
2 years ago
Help a girl out ?? needs turned in at 8:50 pm pls help
True [87]
I guess it’s A not sure tho
6 0
3 years ago
Read 2 more answers
The number in front of the decimal point represents part of a unit while the
posledela

Answer:

False

Step-by-step explanation:

Because the numbers before the decimal is the whole number and the ones after arn't

6 0
3 years ago
Let f(X) = X + 8 and g(X) = x^2 - 6x - 7 find f(g(2)).
Gennadij [26K]
So what you do is evaluate g(2) then plug that value in for x in f(x)

g(2)=2^2-6(2)-7
g(2)=4-12-7
g(2)=-15

now
f(-15)=-15+8
f(-15)=-7

f(g(2)=-7
4 0
2 years ago
Please answer the question below (ABOUT VECTORS AND MAGNITUDE)
coldgirl [10]

(a) <em>v</em> appears to have a fixed direction along the positive <em>x</em>-axis. If ||<em>u</em>|| = 150 N, ||<em>v</em>|| = 220 N, then when <em>θ</em> = 30°, you have

<em>u</em> = (150 N) (cos(30°) <em>i</em> + sin(30°) <em>j</em> ) ≈ (129.904 <em>i</em> + 75 <em>j</em> ) N

<em>v</em> = (220 N) (cos(0°) <em>i</em> + sin(0°) <em>j</em> ) = (220 <em>i</em> ) N

(<em>i</em> and <em>j</em> are the unit vectors in the positive <em>x</em> and <em>y</em> directions)

and their sum is

<em>u</em> + <em>v</em> ≈ (349.904 <em>i</em> + 75 <em>j</em> ) N

with magnitude

||<em>u</em> + <em>v</em>|| ≈ √((349.904)² + (75)²) N ≈ 357.851 N ≈ 357.9 N

and at angle <em>φ</em> made with the positive <em>x</em>-axis such that

tan(<em>φ</em>) ≈ (75 N) / (349.904 N)   →   <em>φ</em> ≈ 12.098° ≈ 12.1°

(b) Letting <em>θ</em> vary from 0° to 180° would make <em>v</em> a function of <em>θ</em> :

<em>u</em> = (150 N) (cos(<em>θ</em>) <em>i</em> + sin(<em>θ</em>) <em>j</em> ) = (150 cos(<em>θ</em>) <em>i</em> + 150 sin(<em>θ</em>) <em>j</em> ) N

Then

<em>u</em> + <em>v</em> = ((220 + 150 cos(<em>θ</em>)) <em>i</em> + (150 sin(<em>θ</em>)) <em>j</em> ) N

→   <em>M</em> = ||<em>u</em> + <em>v</em>|| = √((220 + 150 cos(<em>θ</em>))² + (150 sin(<em>θ</em>))²) N

<em>M</em> = √(48,400 + 66,000 cos(<em>θ</em>) + 22,500 cos²(<em>θ</em>) + 22,500 sin²(<em>θ</em>)) N

<em>M</em> = 10 √(709 + 660 cos(<em>θ</em>)) N

(c) As a function of <em>θ</em>, <em>u</em> + <em>v</em> makes an angle <em>α</em> with the positive <em>x</em>-axis such that

tan(<em>α</em>) = (150 sin(<em>θ</em>) / (220 + 150 cos(<em>θ</em>))

→   <em>α</em> = tan⁻¹((15 sin(<em>θ</em>) / (22 + 15 cos(<em>θ</em>)))

(d) Filling in the table is just a matter of evaluating <em>M</em> and <em>α</em> for each of the given angles <em>θ</em>. For example, when <em>θ</em> = 0°,

<em>M</em> = 10 √(709 + 660 cos(0°)) N = 370 N

<em>α</em> = tan⁻¹((15 sin(0°) / (22 + 15 cos(0°))) = 0°

When <em>θ</em> = 30°, you get the same result as in part (a).

When <em>θ</em> = 60°,

<em>M</em> = 10 √(709 + 660 cos(60°)) N ≈ 323.3 N

<em>α</em> = tan⁻¹((15 sin(60°) / (22 + 15 cos(60°))) = 23.8°

and so on.

4 0
3 years ago
Other questions:
  • Write 0.12*10-3 as a decimal
    11·2 answers
  • Which is a factor of the polynomial f(x) = 6x4 – 21x3 – 4x2 + 24x – 35?
    7·2 answers
  • The school had 366 chairs and 12 classrooms. How many chairs could they put in each classroom?
    5·1 answer
  • What is the point on the line given the equation y = 3(x - 4) + 5?
    5·2 answers
  • A cup of raw Arborio rice weighs 7 ounces. One cup will serve 1 people. Arborio rice is purchased in 2-pound boxes for $1.99. Ho
    8·1 answer
  • Write a paragraph reflecting on the different methods (graphing technology, tables of values, and successive approximation) of s
    11·2 answers
  • A triangle has sides with lengths of 64 kilometers, 80 kilometers, and 51 kilometers. Is it a right triangle?
    11·2 answers
  • I need help asap!!!!!!!!!
    13·1 answer
  • You are Miguel Cervantes de Navas y Colon, captain in the Royal Spanish
    15·1 answer
  • There are______<br>Pairs of integers satisfying a÷b = -2​
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!