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3 years ago

6

4(4x+3)=19x+9-3x+3 what are the steps

1 answer:

TEA [102]3 years ago

4 0

Ok so:

4(4x+3) = 19x + 9 - 3x +3
parenthesis first:
4 x 4x = 16x then 4 x 3 = 12

16x + 12 = 19x + 9 - 3x + 3
combine :) :
19x - 3x = 16x then 9 + 3 = 12

16x + 12 = 16x +12
-12 -12
16x = 16x
They are the same equations lol they equal 0.

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What number should you subtract from the numerator of the fraction 52367/47633 and add to the denominator so that, after reducin

nata0808 [166]

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3 years ago

Acidity is measured on the pH scale. The acidity of a substance is given by pH=−logH, where H is the concentration of Hydrogen i

frosja888 [35]

Answer:

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Even though the question is incomplete, let us try to correctly derive the equation used to find the hydrogen ion concentration.

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3 years ago

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2 years ago

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3 years ago

If an object is projected upward with an initial velocity of 123 ft per sec, its height h after t seconds is h=−16t2+123t. Find

Alinara [238K]

Answer:

Height after 5 seconds is <em>215 ft</em>

Step-by-step explanation:

Given that:

The initial velocity of object which is projected upwards is 123 ft/sec.

Height of the object, <em>h</em> after time <em>t </em> in seconds, is given as:

$h=-16t^2+123t$

Here, <em>t </em>will always be positive, so $123t$ and $16t^2$ will also be positive.

But coefficient of $16t^2$ is negative, that means something is subtracted from the positive term $123t$ .

To find:

Height of object after 5 seconds.

Solution:

Given that $t=5$ seconds.

Let us put the value in the given relation of $h$ and $t$ :

$h=-16\times 5^2+123 \times 5\\\Rightarrow h=-400+615\\\Rightarrow \bold{h = 215\ ft}$

So, height after 5 seconds is <em>215 ft</em>.

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3 years ago