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3 years ago

PLEASE HELP THIS IS URGENT...

Mathematics

1 answer:

Snowcat [4.5K]3 years ago

8 0

Answer:

Hope this helps

Step-by-step explanation:

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Find the zeros of the quadratic equation by finding the square root: x2 + 10 = 110.<br>

icang [17]

Answer:

Step-by-step explanation:

x^2+10=110

x=(100)^½

x=10 where:½ is radical

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3 years ago

Mrs. Mack teaches three art classes, and there are 30 students in each class. She has a supply

lina2011 [118]

Answer:

90/150

3/5

Step-by-step explanation:

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3 years ago

How do i solve this exponential equation<br>

Novay_Z [31]

Answer:

x = 0 or 1/2

Step-by-step explanation:

Solving an exponential equation of this nature with different bases and coefficients is always a bit of an ad hoc affair. Here, we can divide by the right side expression and make a substitution that turns it into a quadratic.

$3\cdot16^x+2\cdot81^x=5\cdot36^x\\\\0.6\left(\dfrac{4}{9}\right)^x+0.4\left(\dfrac{9}{4}\right)^x=1\\\\\textsf{Let $z=\left(\dfrac{4}{9}\right)^x$}\\\\0.6z+\dfrac{0.4}{z}=1\qquad\text{after substitution}\\\\3z^2-5z +2 = 0\qquad\text{multiply by $5z$ and put in standard form}\\\\(3z-2)(z-1)=0\qquad\text{factor}\\\\z=\dfrac{2}{3}\quad\text{or}\quad z=1\\\\x=\dfrac{\log(z)}{\log(4/9)}=\boxed{\dfrac{1}{2}\quad\text{or}\quad 0}$

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<em>Additional comment</em>

A graphing calculator often solves these very nicely, especially when the equation is put into the form f(x) = 0.

3 0

2 years ago

a company was able to increase its staff from 126 employees to 190 employees what was the percentage increase in staff? Rounds t

azamat

Answer:

50.7%

Step-by-step explanation:

First you have to find the difference. (190-126=64) Then to find the percentage you have to divide A by B (64/126 which is about .507) Move the decimal I’ve twice (50.7) and there’s your answer!

7 0

3 years ago

Plzz helpp all of this is due today :(

almond37 [142]

Answer: square root property

Step-by-step explanation:trust me

5 0

3 years ago