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3 years ago

How do I solve for the indicated variable in the parenthesis. P=IRT (T)

Mathematics

2 answers:

NeTakaya3 years ago

6 0

Divide IR on bother sides to get T by itself.

iren2701 [21]3 years ago

4 0

1) divide ir to the p side to cancel them out
P
___ = T
IR

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Precalc.

viktelen [127]

Domain: x>0.

$(\log_2x)^2+7\log_2x+12=0$

Substitute $t=\log_2x\in\mathbb{R}$ . We have:

$t^2+7t+12=0\\\\a=1\qquad b=7\qquad c=12\\\\\\\Delta=b^2-4ac=7^2-4\cdot1\cdot12=49-48=1\\\\\sqrt{\Delta}=\sqrt{1}=1\\\\\\
t_1=\dfrac{-b-\sqrt{\Delta}}{2a}=\dfrac{-7-1}{2}=\dfrac{-8}{2}=-4\\\\\\
t_2=\dfrac{-b+\sqrt{\Delta}}{2a}=\dfrac{-7+1}{2}=\dfrac{-6}{2}=-3$

For t₁ there will be:

$\log_2x=t_1\\\\\log_2x=-4\\\\2^{-4}=x\\\\x=\dfrac{1}{2^4}\\\\\\x=\dfrac{1}{16}=0,0625\\\\\\\boxed{x\approx0,063}$

and for t₂:

$\log_2x=t_2\\\\\log_2x=-3\\\\2^{-3}=x\\\\x=\dfrac{1}{2^3}\\\\\\x=\dfrac{1}{8}\\\\\\\boxed{x=0,125}$

Answer d)

6 0

3 years ago

Find the length of side s to the nearest tenth.

stepladder [879]

Answer:

10.3

Step-by-step explanation:

So first you get the angle of T which is 25 degrees

The you use the law of sine

$\frac{s}{Sin 119} =\frac{5}{Sin 25}$

Then you get s = 10.34763268

Round to nearest tenth

s = 10.3

8 0

3 years ago

Need help asap !!!! It also said round to the nearest tenth

Over [174]

Answer:

4524.9

Step-by-step explanation:

Area of a parallelogram:

A = bh

A = 63 x 90

A = 5670

Area of half-circle:

A = (πr²)/2

A = (π x 27²)/2

A = (π x 729)/2

A = 729/2π

Combined:

5670 - 729/2π

4524.9

4 0

4 years ago

I have to place them in order.m

julsineya [31]

Answer:

1. 4.5 (9/2)

2. 5.2 (square root of 27)

3. 5.8

4. 6.3 (2pi)

Step-by-step explanation:

The square root of 27 is 5.2, 2pi is 6.3, and 9/2 is 4.5. So the first one is 4.5. The second one is 5.2. The third one is 5.8 and the fourth one is 6.3. I hope this helps! Please mark me brainliest!

7 0

4 years ago

Use the grouping method to factor this polynomial completely. 3x^3+12x^2x+8

Anna007 [38]

Answer:171x+8

Step-by-step explanation:

3x^3+12x^2x+8

=27x+144x+8

=171x+8

7 0

2 years ago