MATHEMATICS HIGH SCHOOL

A 150 Ohm electric toaster is powered with a voltage of 120 v, what is its current intensity

Answers

Answer 1
Answer:

Intensity = Voltage ÷ Electerical Resistance

Intensity = 120÷ 150

Intensity = 12/15

Intensity = 4×3/5×3

Intensity = 4/5

Intensity = 0.8 Amp

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The weight of an object on the moon is 1/6 it's weight on Earth. Write 1/6 as a decimal.

Help meeee please in quadratic equation

Answers

What part are you wanting to know about? The written of number 9? 
7x² + 31x + 12 = 0

x = -b ± √(b² - 4ac)
               2a
x = -(31) ± √((31)² - 4(7)(12))
                      2(7)
x = -31 ± √(961 - 4(84))
                   14
x = -31 ± √(961 - 336)
                  14
x = -31 ± √(625)
              14
x = -31 ± 25
           14
x = -31 + 25    or    x = -31 - 25
           14                          14
x = -6    or    x = -56
      14                 14
x = ⁻³/₇    or    x = -4

Find the surface area of the cone in terms of pi.

Answers

Answer:

First option is the correct choice.

Step-by-step explanation:

SA=\pi r^2+\pi r l\n\n=\pi \left(3\right)^2+\pi \left(3\right)\left(8\right)\n\n=33\pi \:ft^2

Best Regards!

I NEED HELP PLZZZZZ​

Answers

Answer:

c!

Step-by-step explanation:

You can just pull out a blank graph and plot your answers on there!

Ann entered a race which required a run of 10 km north and a bike of 120 km west. Determine her running speed if she cycled ten times faster than she ran and the total race took her four hours to complete.

Answers

x - running speed
10x - speed on bike

v = s/t
s - distance
t - time

t = s/v

s₁ = 10 km
s₂ = 120 km

(10)/(x) + (120)/(10x) = 4\n\n(10)/(x) + (12)/(x) = 4\ \ //*x\n\n10 + 12 = 4x\n\n4x = 22\ \ //:4\n\nx =(22)/(4) = 5,5\ km/h

Solution:
Running speed = 5,5 km/h

What is x- 2 1/2 = 6 3/4. pls help

Answers

X= 9 1/4 or 9.25 in decimal form
try using socratic the app

What is the number 3 in this expression: 3x^(5)

Answers

Answer:

base

Step-by-step explanation:

number three is the base of this indice,the 5 is power or index

Answer:

In this expression 3 is known as the base, while 5 is known as the power
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What’s the answer for number 9