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natta225 [31]
3 years ago
13

Problem

Mathematics
2 answers:
SSSSS [86.1K]3 years ago
6 0

Answer:

8.7*10^-5

Step-by-step explanation:

lakkis [162]3 years ago
5 0
\bf \cfrac{\stackrel{\textit{human hair}}{9\times 10^{-5}}}{\stackrel{\textit{spider hair}}{3\times 10^{-6}}}\implies \cfrac{9}{3}\times \cfrac{10^{-5}}{10^{-6}}\implies \cfrac{3}{1}\times \cfrac{10^{-5}10^{6}}{1}
\\\\\\
3\times 10^{-5+6}\implies 3\times 10^1
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A truck with 36-in.-diameter wheels is traveling at 55 mi/h.
kkurt [141]

Answer:

The angular speed is 3,227 rad/min

Step-by-step explanation:

Remember that

1 mile=63,360 inches

step 1

Find the circumference of the wheels

The circumference is equal to

C=\pi D

we have

D=36\ in

substitute

C=\pi (36)

C=36\pi\ in

step 2

we know that

The speed of the wheel is 55 mi/h

<em><u>Convert to mi/min</u></em>

55 mi/h=55/60 mi/min

<u><em>Convert to in/min</em></u>

(55/60) mi/min=55*63,360/60 in/min= 58,080 in/min

we know that

The circumference of the wheel subtends a central angle of 2π radians

so

using proportion

Find out how much radians are 58,080 inches

\frac{36\pi }{2\pi }=\frac{58,080}{x} \\\\x=2*58,080/36\\\\x=3,226.67 \ rad

therefore

The angular speed is 3,227 rad/min

6 0
3 years ago
4) Mandy has a flower garden that is 30
Softa [21]

Answer:

using quaderatic expression solving problems of algebraic expressions.

Step-by-step explanation:

no1.

take the smallest side to be x

and the longest side to be x-1/3

then expand the expression equating to 30.

then solve for x value

6 0
2 years ago
PLEASE HELP IN MATH MADDD POINTS
zubka84 [21]
I'm 100% sure it's A

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Which two triangles are congruent ? Complete the congruence statement . Please don’t be wrong I’ll
lukranit [14]

Answer:

ΔHFG≅ΔSUT

Step-by-step explanation:

You just have to match up the sides and the angle.It's easier to color code them.

For example:

Segment SU would be congruent with HF. (both would be blue, just example color)

Angle U is congruent to angle F (red)

UT congruent to FG (green)

6 0
3 years ago
Which of the following rules represents a dilation? A. (x, y) → (x − 3, y + 5) A. , (x, y) → (x − 3, y + 5) , B. (x, y) → (−y, x
murzikaleks [220]

Answer:

35

Step-by-step explanation:

mutilply the 3 by the 9 subtract dez uts

7 0
3 years ago
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