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
My name is Ann [436]
3 years ago
10

Polly's parents car weighs about 3500 pounds. Samantha, Esther, and pollys each wrote the weight of the car in scientific notati

on. Polly wrote 35.0×10^2, Samantha wrote 0.35×10^4, Esther wrote 3.5×10^4. A. Which of these girls are correct? B. Explain the mistakes of those who got the question wrong.
Mathematics
2 answers:
irakobra [83]3 years ago
7 0
Esther is correct, the first number to a scientific notation has to be above 0 but under 10
Effectus [21]3 years ago
7 0
Esther is correct. The other two misplaced the decimal place.
You might be interested in
Deandre knit a scarf for each of his 8 friends. Each scarf was 57.6in
madreJ [45]
Multiply 57.6 x 8 = 460. 8 and since you have to convert it to feet you divide by 12 which gets you 38.4 feet
7 0
2 years ago
HELP ASAP!! (MARK BRAINLIST)
Sever21 [200]

Answer:

uhhh i think 2

Step-by-step explanation:

5 0
2 years ago
Use Euler's method with step size 0.2 to estimate y(1), where y(x) is the solution of the initial-value problem y' = x2y − 1 2 y
irina [24]

Answer:

Therefore the value of y(1)= 0.9152.

Step-by-step explanation:

According to the Euler's method

y(x+h)≈ y(x) + hy'(x) ....(1)

Given that y(0) =3 and step size (h) = 0.2.

y'(x)= x^2y(x)-\frac12y^2(x)

Putting the value of y'(x) in equation (1)

y(x+h)\approx y(x) +h(x^2y(x)-\frac12y^2(x))

Substituting x =0 and h= 0.2

y(0+0.2)\approx y(0)+0.2[0\times y(0)-\frac12 (y(0))^2]

\Rightarrow y(0.2)\approx 3+0.2[-\frac12 \times3]    [∵ y(0) =3 ]

\Rightarrow y(0.2)\approx 2.7

Substituting x =0.2 and h= 0.2

y(0.2+0.2)\approx y(0.2)+0.2[(0.2)^2\times y(0.2)-\frac12 (y(0.2))^2]

\Rightarrow y(0.4)\approx  2.7+0.2[(0.2)^2\times 2.7- \frac12(2.7)^2]

\Rightarrow y(0.4)\approx 1.9926

Substituting x =0.4 and h= 0.2

y(0.4+0.2)\approx y(0.4)+0.2[(0.4)^2\times y(0.4)-\frac12 (y(0.4))^2]

\Rightarrow y(0.6)\approx  1.9926+0.2[(0.4)^2\times 1.9926- \frac12(1.9926)^2]

\Rightarrow y(0.6)\approx 1.6593

Substituting x =0.6 and h= 0.2

y(0.6+0.2)\approx y(0.6)+0.2[(0.6)^2\times y(0.6)-\frac12 (y(0.6))^2]

\Rightarrow y(0.8)\approx  1.6593+0.2[(0.6)^2\times 1.6593- \frac12(1.6593)^2]

\Rightarrow y(0.6)\approx 0.8800

Substituting x =0.8 and h= 0.2

y(0.8+0.2)\approx y(0.8)+0.2[(0.8)^2\times y(0.8)-\frac12 (y(0.8))^2]

\Rightarrow y(1.0)\approx  0.8800+0.2[(0.8)^2\times 0.8800- \frac12(0.8800)^2]

\Rightarrow y(1.0)\approx 0.9152

Therefore the value of y(1)= 0.9152.

4 0
3 years ago
In a woodworking class, you need to make five triangles out of plywood. Each triangle has a height of 6 inches and a base of 14
Bogdan [553]

Answer:5 * (1/2 * 6 * 14)= x

Step-by-step explanation: :D

3 0
3 years ago
Solve for x<br><br> A. x=72<br> B. x=27<br> C. x=108<br> D. x=63
erastovalidia [21]
X + x + 36 = 90
2x = 54
x = 27 Answer
4 0
3 years ago
Other questions:
  • Rhonda is downloading a file from the Internet. The size of the file is 7.45 MB. The file is downloading at the rate of 0.095 MB
    7·1 answer
  • How to order -14.4, -14, -14 1/5 from least to greatest
    7·1 answer
  • Annie estimates that the height of a bookcase is 78.25 in. The actual height is 75.50 in.
    12·1 answer
  • I got CONFUSED PLZ HELP?
    9·2 answers
  • -19.8 &gt; 3.6y<br><br> Can someone help solve this inequality please?
    9·1 answer
  • How is solving literal equations like solving equations in one variable
    8·2 answers
  • A sector of a circle of radius is 15Cm, and angle 216 degrees is bent to form a cone. What is base radius of the cone and the ve
    14·1 answer
  • 8 3/4 as a mixed number
    9·1 answer
  • Four more than three times a number is greater than twenty-two what is the answer?
    11·1 answer
  • In dogs, there is a hereditary deafness caused by a recessive gene, “d." A kennel owner
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!