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3 years ago

Can someone answer this?

Mathematics

2 answers:

shtirl [24]3 years ago

5 0

Answer:

Step-by-step explanation:

change the % to × and exchange the numerator and denominator,

then multiply, 2x4=8

nevsk [136]3 years ago

4 0

Answer:

The answer is 8

Step-by-step explanation: Use the KCF method.

Keep the first number, change the second sign into multiplication, and flip the numbers on the third part, so 4/1. Now multiply 2 and 4.

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Energy for both renewable and nonrenewable sources originally comes from

Korvikt [17]

Answer:

Step-by-step explanation:

the sun is the primary source

6 0

2 years ago

If a car has tires with a diameter of 28 inches and is traveling at 55 mph, how fast are its tires spinning, in rpm^ prime s (re

Aleksandr-060686 [28]

Answer:

The tires are spinning at 660.49 revolutions per minute.

Step-by-step explanation:

The speed of the tires (v) is the same that the speed of the car, so to find the angular velocity of the tires we need to use the equation:

$\omega = \frac{v}{r}$

Where:

r: is the radius of the tires = d/2 = 28 inches/2 = 14 inches

$\omega = \frac{55 mph}{14 inches*\frac{1 mile}{63360 inches}} = 2.49 \cdot 10^{5} \frac{rad}{h}*\frac{1 h}{60 min}*\frac{1 rev}{2\pi rad} = 660.49 rpm$

Therefore, the tires are spinning at 660.49 revolutions per minute.

I hope it helps you!

5 0

3 years ago

HELP <br><br>MMEEE!! i will give brainly

LUCKY_DIMON [66]

Answer:

the answer is 28 in

hope this helps

8 0

2 years ago

Read 2 more answers

Can someone help me with this and have it step by step please

Sladkaya [172]

Answer:

should also be 40

Step-by-step explanation:

the measure of angle 1 is equivelent to angle two, since they both lie ont he same line.

8 0

3 years ago

The equation for decibels and sound intensity is D=10log(sub 10) I/I(sub0) where D is decibels.

velikii [3]

$D=10\log\dfrac{I}{I_0}\\\\
D=10\log\dfrac{10^{11}}{10^{-12}}\\
D=10\log10^{23}\\
D=10\cdot23=\\
D=230$

6 0

3 years ago