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3 years ago

How many times can I access to questions and answers if I don't use Brainly Plus?

Mathematics

2 answers:

alexira [117]3 years ago

6 0

Answer:

INIFINITE MAN

Step-by-step explanation:

They just add some stuff, but I would not waste my money for that :)

Otrada [13]3 years ago

4 0

Step-by-step explanation:

Brainly Plus just gets rid of ads im pretty shure sorry if im wrong

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Davison crew can hang 12 sheets of drywall in 15minutes.at this rate how many sheets can they hang in a hour 15minutes =1/4

KengaRu [80]

If 15 is 1/4 of an hour then multiply 12 with 4. It’s 48, they can hang 48 sheets in an hour.

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3 years ago

Mia is drawing an angle that is made up of 35 one-degree angles. How many degrees is Mia's angle?

Tcecarenko [31]

Answer:

35 degrees

Step-by-step explanation:

add all the one degrees together

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3 years ago

A 90% confidence interval is (35 45). What is the margin of error?

MA_775_DIABLO [31]

Answer:

option A 5

I hope it's correct

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3 years ago

Try to sketch by hand the curve of intersection of the parabolic cylinder y = x2 and the top half of the ellipsoid x2 + 7y2 + 7z

vovikov84 [41]

Plug $y=x^2$ into the equation of the ellipsoid:

$x^2+7(x^2)^2+7z^2=49$

Complete the square:

$7x^4+x^2=7\left(x^4+\dfrac{x^2}7+\dfrac1{14^2}-\dfrac1{14^2}\right)=7\left(x^2+\dfrac1{14}\right)^2+\dfrac1{28}$

Then the intersection is such that

$7\left(x^2+\dfrac1{14}\right)^2+7z^2=\dfrac{1371}{28}$

$\left(x^2+\dfrac1{14}\right)^2+z^2=\dfrac{1371}{196}$

which resembles the equation of a circle, and suggests a parameterization is polar-like coordinates. Let

$x(t)^2+\dfrac1{14}=\sqrt{\dfrac{1371}{196}}\cos t\implies x(t)=\pm\sqrt{\sqrt{\dfrac{1371}{196}}\cos t-\dfrac1{14}}$

$y(t)=x(t)^2=\sqrt{\dfrac{1371}{196}}\cos t-\dfrac1{14}$

$z=\sqrt{\dfrac{1371}{196}}\sin t$

(Attached is a plot of the two surfaces and the intersection; red for the positive root $x(t)$ , blue for the negative)

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4 years ago

13 is 26% of what number

Marina CMI [18]

Answer:

Step-by-step explanation:

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3 years ago

Read 2 more answers

How many times can I access to questions and answers if I don't use Brainly Plus? ​

How many times can I access to questions and answers if I don't use Brainly Plus?