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4 years ago

What is the equation in point-slope form of the line that passes through the point (-2, 7) and has a slope of 3?

Mathematics

1 answer:

larisa [96]4 years ago

5 0

Answer:

y-7=3(x+2)

Step-by-step explanation:

Point Slope Form is:

$y-y_1=m(x-x_1)$

We are given the point of (-2, 7) and the slope of 3.

Plug in the appropriate values:

$y-y_1=m(x-x_1)\rightarrow \boxed{y-7=3(x+2)}$

Hope this helps.

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29) PLEASE HELP WITH QUESTION.<br><br> MARKING BRAINLIEST + POINTS GIVEN.

Reika [66]

$x^{4} -32 x^{2} -144$ will factor into the following
$( x^{2} +4)( x^{2} -36)$
Set each factor equal to 0:
$x^{2} +4=0$ or $x^{2} -36=0$
$x^{2} =-4$ $x^{2} =36$
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Answer: 2i, 6, -6

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3 years ago

Please help i dont understand

Kipish [7]

Answer:

44°

Step-by-step explanation:

Arc 8s equal to the central angle

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3 years ago

Jody practiced a piano piece for 500 seconds bill practiced a piano piece for 8 minutes who practiced longer explain

Mrac [35]

Answer:

Jody

Step-by-step explanation:

You can either convert 500 seconds to minutes or 8 minutes to seconds to compare. I'll do both.

There is 60 seconds in a minute. To find the total minutes of 500 seconds, divide 500 by 60 → 8.3, which means that Jody practiced for 8.3 minutes.

To find the total seconds of 8 minutes, multiply 60 seconds per minute by 8 minutes → 60 * 8 = 480 seconds which means that Bill practiced for 480 seconds.

Now you can compare. Jody practiced for 500 seconds, or 8.3 minutes. Bill practiced for 480 seconds, or 8 minutes. Jody practiced longer.

7 0

3 years ago

What is the decibel level of the sound of a monster truck with intensity 10−2 watts per square inch? Use a logarithmic model to

lorasvet [3.4K]

Answer:

BdB = 68.10 decibels

Step-by-step explanation:

BdB = 10 log10 I / Io

where BdB is the sound intensity level in decibels, I is the sound intensity on the linear scale (W / m²) and I0 is the hearing threshold (10^-12 W / m²).

Converting Io de 10^-12 W/m² to W/in², tenemos

10^-12 W/m² = 1.5500031000062x10^-9 W/in²

So, applying the equation or formula,

BdB = 10 log10 (10 ^ -2 W/in² / 1.5500031000062x10^-9 W/in² )

BdB = 10 log10 (0.64516x10^6)

BdB = 10 log10 (6,451,600)

Being log10 (6,451,600) = 6.8096674332398761189214526331036, then

BdB = 10 x 6.8096674332398761189214526331036

BdB = 68.096674332398761189214526331036

BdB = 68.10 decibels

8 0

3 years ago

Read 2 more answers

10 A three-dimensional letterH is formed by joining two identical cuboids and a cube.

hoa [83]

Answer:

10= 275

-------------

11=

a 6

b 4

-------------

12= 35

Step-by-step explanation:

7 0

3 years ago