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AleksAgata [21]
3 years ago
12

Factor the perfect square trinomial on the left side of the equation

Mathematics
2 answers:
OlgaM077 [116]3 years ago
6 0

Answer:

(x+\frac{1}{4})^2=\frac{4}{9}

Step-by-step explanation:

Given the the equation

x^2+\frac{1}{2}x+\frac{1}{16}=\frac{4}{9}

We have to factor the perfect square trinomial on the left side of the equation

x^2+2\times x\times \frac{1}{4}+(\frac{1}{4})^2=\frac{4}{9}

As, (a+b)^2=a^2+2ab+b^2

Here LHS makes the perfect square

(x+\frac{1}{4})^2=\frac{4}{9}

BabaBlast [244]3 years ago
5 0

Answer:

1/4

Step-by-step explanation:

Edgenuity

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-25 Points-
Nesterboy [21]

Answer:

<h2>823.7 m²</h2>

Step-by-step explanation:

If a figure A and a figure B are similar, then

\dfrac{area_A}{area_B}=k^2    (*)

<em>k</em><em> - similarity scale</em>

<em />

Calculate the similarity scale:

k=\dfrac{6}{5}

We have the surface area of the smaller prism 572 m².

Substitute to the formula (*):

\dfrac{x}{572}=\left(\dfrac{6}{5}\right)^2\\\\\dfrac{x}{572}=\dfrac{36}{25}\qquad\text{cross multiply}\\\\25x=(36)(572)\\\\25x=20,592\qquad\text{divide both sides by 25}\\\\x=823.68\approx823.7\ m^2

7 0
3 years ago
Solve each equation 3x+2(5x-3)=7
Sloan [31]

Answer:

1

Step-by-step explanation:

Step 1:

3x + 2 ( 5x - 3 ) = 7

Step 2:

3x + 10x - 6 = 7

Step 3:

13x - 6 = 7

Step 4:

13x = 13

Answer:

x = 1

Hope This Helps :)

7 0
3 years ago
A car travels at an average speed of 52 miles per hour How many miles does it travel in 5 hours and 45 minutes
hammer [34]

5 h 45 min = 5.75 hours

52 * 5.75 = 299 miles

3 0
3 years ago
Read 2 more answers
On a certain​ river, a paddleboat travels 12 miles upstream ​(against the​ current) in the same amount of time it travels 20 mil
marin [14]

Given :

a paddle boat travels  upstream = 12 miles

a paddle boat travels  downstream = 20 miles

speed of the current = 2 miles per ​hour

Let the speed of the boat =x

Let the time taken = t

We know the distance for upstream D= (boat speed - current speed) * time

the distance for downstream D= (boat speed + current speed) * time

Plug in all the values and variables in the distance

For upstream 12 = (x-2)t, then t = \frac{12}{x-2}

For downstream 20 = (x+2)t then t = \frac{20}{x+2}

we got two equations for t, equate it and solve for x

\frac{12}{x-2} = \frac{20}{x+2}

Cross multiply it

12(x+2) = 20(x-2)

12x + 24 = 20x - 40 (subtract 12x  and add 40 on both sides)

64 = 8x

x= 8

the speed of the boat in still water = 8 miles per hour



3 0
3 years ago
Read 2 more answers
Haroldo, Xerxes, Regina, Murray, Norah, Stav, Zeke, Cam, and Georgia are invited to a dinner party. They arrive in a random orde
Scilla [17]

Answer:

1/9

Step-by-step explanation:

Becuase there are 9 people invited, so they all have a 1/9 chance

6 0
3 years ago
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