43.7 is what percent of 9,2

Answers

Answer 1

Answer:

1. You find, that the number 9.2 is 100% - because it's the output value of the task.

2. You need to find out what x is.

3. If 100% equals 9.2, you can write it down as 100%=9.2.

4. Now you know, that x% equals 43.7 of the output value, so we can write it down as x%=43.7.

5. Now you have two simple equations:

1) 100%=9.2

2) x%=43.7

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=9.2/43.7

7. Solution for 43.7 is what percent of 9.2

100%/x%=9.2/43.7
(100/x)*x=(9.2/43.7)*x - you multiply both sides of the equation by x
100=0.210526315789*x - you divide both sides of the equation by (0.210526315789) to get x
100/0.210526315789=x
475=x
x=475

So the answer is 475%! Hope it works!

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Express each as a single power of 2...

2^a X 2^b X 2^c

2^a+b X 2^a-b

Answers

i) $2 ^(a)*2 ^(b)* 2^(c)$
We know that $x^(a) * x^(b) = x^(a+b)$
Therefore,
$2 ^(a)*2 ^(b)* 2^(c)$ = $2 ^(a+b+c)$
ii) $2 ^(a+b) * 2 ^(a-b)= 2^((a+b+a-b))$
$= 2^(2a)$

PLZ HAAAALPOne winter day, the temperature was -15°F. Later that day, the temperature rose 12°F to reach the high temperature for the day. If t represents the high temperature, what is t?

Answers

Answer:

-3°F

Step-by-step explanation:

-15 + 12 = -3

Answer:

-3

Step-by-step explanation:

What is the value of the discriminant for the quadratic equation 0 = 2x^2 + x – 3?Discriminant = b^2 – 4ac

A) –25
B) –23
C) 25
D) 26

Answers

the discriminant tells or discriminates how many roots there will be and what kind they are

that is the bit under the square root sign with is b^2-4ac

when you have
ax^2+bx+c=0
we have
2x^2+1x-3=0
a=2
b=1
c=-3
sub
b^2-4ac
1^2-4*2*-3
1+24
25

the discriminant is 25 C

What is the value of the discriminant for the quadratic equation 0 = 2x^2 + x – 3?

It would be C 25

Ian walks 4 1/2 miles everyday. How many miles does Ian walk in 4 1/2 days?

Answers

mutiply 4 1/2 by 4 1/2 and you get 20.25 and 25/100 which can be sipmlified to 1/4 so 20.25 is 20 1/4

2/3 of my cats plus 4. How many cats does the nemesis have?

Answers

it will be 4 2/3 cats

2/3 = 0.6 repeat

plus 4 decimal form 4.0

is 4.6 repeat

The function f(x) = −x^2 + 48x − 432 models the profit, in dollars, a game developer makes for selling a new game, where x is the number of games sold and f(x) is the amount of profit.Part A: Determine the vertex. What does this calculation mean in the context of the problem? (5 points)

Part B: Determine the x-intercepts. What do these values mean in the context of the problem?

Answers

f(x) = −x^2 + 48x − 432

Part A

Find the zeros:

−x^2 + 48x − 432 = 0

x^2 - 48x + 432 = 0

Factor

(x - 36 ) (x - 12 )=0

Two solutions: x = 36 and x = 12

The vertex is in x = (36 +12 )/ 2 = 24

f(24) = -(24)^2 + 48(24) − 432 = 144

The vertex is (24, 144).

Given that the coefficient of x^2 is negative, the parabole opens downward, that mean that the vertex is a maximum value.

In the context of the problem that means that the maximum profit is 144 and is obtainded when the number of games sold is 24.

Part B.

The x-intercepts are the values of x when y=0. Which we calculated above.

They are x = 24 and x = 36.

Those values are the number of games for which the profit is zero.

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Write a compound inequality that represents the evelation range for each type of plant life

4x + y =1x + 2y = 9

-14-7(9v+3)=13v+41

Susan rides her bicycle 5 miles in 1/2 of an hour. At this rate, how many miles could she ride in 2 hours?