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
Salsk061 [2.6K]
3 years ago
13

9 and 11 please I need help

Mathematics
1 answer:
dimaraw [331]3 years ago
5 0
9. <span>1.25 = (1 x 1) + (2/10) + (5/100)

11. is ---C----</span>
You might be interested in
What is the IQR (interquartile range)?
Ivanshal [37]
Median..................
4 0
3 years ago
Raj paid $31.86 for a new basketball. The price he paid included sales tax of 6.25%.
Marianna [84]
<span>D.
p + 6.25p = 31.86</span>
3 0
3 years ago
A box of 8 waffles weigh 26.9 ounces.The box weighs 4.5 ounces. What is the weight of each waffle?
Phoenix [80]
Each waffle weighs 5.97 ounces hope this helps!
8 0
3 years ago
The circumference of a sphere was measured to be 76 cm with a possible error of 0.5 cm. (a) Use differentials to estimate the ma
andreev551 [17]

The maximum error in the calculated surface area is 24.19cm² and the relative error is 0.0132.

Given that the circumference of a sphere is 76cm and error is 0.5cm.

The formula of the surface area of a sphere is A=4πr².

Differentiate both sides with respect to r and get

dA÷dr=2×4πr

dA÷dr=8πr

dA=8πr×dr

The circumference of a sphere is C=2πr.

From above the find the value of r is

r=C÷(2π)

By using the error in circumference relation to error in radius by:

Differentiate both sides with respect to r as

dr÷dr=dC÷(2πdr)

1=dC÷(2πdr)

dr=dC÷(2π)

The maximum error in surface area is simplified as:

Substitute the value of dr in dA as

dA=8πr×(dC÷(2π))

Cancel π from both numerator and denominator and simplify it

dA=4rdC

Substitute the value of r=C÷(2π) in above and get

dA=4dC×(C÷2π)

dA=(2CdC)÷π

Here, C=76cm and dC=0.5cm.

Substitute this in above as

dA=(2×76×0.5)÷π

dA=76÷π

dA=24.19cm².

Find relative error as the relative error is between the value of the Area and the maximum error, therefore:

\begin{aligned}\frac{dA}{A}&=\frac{8\pi rdr}{4\pi r^2}\\ \frac{dA}{A}&=\frac{2dr}{r}\end

As above its found that r=C÷(2π) and r=dC÷(2π).

Substitute this in the above

\begin{aligned}\frac{dA}{A}&=\frac{\frac{2dC}{2\pi}}{\frac{C}{2\pi}}\\ &=\frac{2dC}{C}\\ &=\frac{2\times 0.5}{76}\\ &=0.0132\end

Hence, the maximum error in the calculated surface area with the circumference of a sphere was measured to be 76 cm with a possible error of 0.5 cm is 24.19cm² and the relative error is 0.0132.

Learn about relative error from here brainly.com/question/13106593

#SPJ4

3 0
2 years ago
Use the function f(x) = −16x2 + 60x + to Completely factor f(x). <br>Pls include steps ​
Elodia [21]

Answer: -4x(4x - 15)

Step-by-step explanation:

f(x) = -16x^{2} + 60x

y = -16x^{2} + 60x

=> - (16x^{2} - 60x)

=> -4x(4x - 15)

3 0
3 years ago
Other questions:
  • How do I solve for X? 37/24=7/8-5x/6
    10·1 answer
  • ❗❗❗❗❗❗❗HELP❗❗❗❗❗❗❗
    15·1 answer
  • Which equation represents a parabola that has a focus of (0 0) and a directrix of y = 2
    14·2 answers
  • A researcher reports a 98% confidence interval for the proportion of Drosophila in a population with mutation Adh-F to be [0.34,
    11·1 answer
  • The explicit rule for a sequence is given. <br><br> an= 2/5 (5)^n−1
    14·1 answer
  • I need help solving this problem pls!!!
    11·1 answer
  • Find a ratio of 2 kg and 750 gram​
    7·1 answer
  • Do the table and the equation represent the<br> same function?<br> y = 390 + 11(x)
    9·1 answer
  • Determine f(a+h)-f(a)/h for f(x)=x^2+5x
    5·1 answer
  • sally has 200$ in her checking account and gets paid 15$ an hour for babysitting kent has $245 in his checking account and gets
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!