All categories

3 years ago

I have trigonometry pile up - puzzle one and i need help solving it

Mathematics

1 answer:

Rus_ich [418]3 years ago

3 0

Answer:

do you have a picture

Step-by-step explanation:

You might be interested in

Mr Martin rent a car for one day the charge is $36 plus $0.18 per mile Mr Martin has a budget of $60 how many miles can you driv

enot [183]

Answer:

133 full miles

Step-by-step explanation:

$36 + $0.18x = 60

Subtract 36 on both sides

$0.18x = 24

Divide 0.18 on both sides

x = 133.333333333

Answer: 133 full miles

6 0

3 years ago

What is the product of 2r^2-5 and 3r

bagirrra123 [75]

Two solutions were found :

r = -5/2 = -2.500

r = 1

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

2*r^2-(5-3*r)=0

Step by step solution :

Step 1 :

Equation at the end of step 1 :

2r2 - (5 - 3r) = 0

Step 2 :

Trying to factor by splitting the middle term

2.1 Factoring 2r2+3r-5

The first term is, 2r2 its coefficient is 2 .

The middle term is, +3r its coefficient is 3 .

The last term, "the constant", is -5

Step-1 : Multiply the coefficient of the first term by the constant 2 • -5 = -10

Step-2 : Find two factors of -10 whose sum equals the coefficient of the middle term, which is 3 .

-10 + 1 = -9

-5 + 2 = -3

-2 + 5 = 3 That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -2 and 5

2r2 - 2r + 5r - 5

Step-4 : Add up the first 2 terms, pulling out like factors :

2r • (r-1)

Add up the last 2 terms, pulling out common factors :

5 • (r-1)

Step-5 : Add up the four terms of step 4 :

(2r+5) • (r-1)

Which is the desired factorization

3 0

3 years ago

Read 2 more answers

What is an equvilent fraction for 7x plus 4x plus 3 minus 1

vredina [299]

6x plus 3x plus 4 minus 2

6 0

3 years ago

2 1/2-1 1/2 in fraction

Olenka [21]

1 or 2/2. They equal the same number

5 0

4 years ago

A 12 vdc power supply powers a blue high intensity led with a forward voltage of 4.5 volts. The led is rated to withstand a maxi

dimulka [17.4K]

Answer:

Resister of 0.15 W is to be added.

Step-by-step explanation:

In a given circuit we have the attachments

A power supply of 12 V

High intensity LED with forward voltage = 4.5V

LED is rated to withstand a maximum current of 20 mA or $20.10^{-30} A$

We have to calculate the size of a resister to be connected in series.

Here we will apply the Ohm's law for the calculations

Total voltage of the circuit = voltage of LED + voltage across resistance.

$12=4.5+20.10^{-3}.r$

r = (12 - 4.5)/20.10^{-3}

r = 7.5×10^{3}/20 = 375 ohm

Therefore power of the resistance = i².r

$P=i^{2}\times r$

$=(20\times 10^{-3})^{2}\times 375$

= 0.15 W

Therefore a resister of 0.15 W is to be added.

6 0

3 years ago