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Vladimir [108]
3 years ago
12

Can someone help me out

Mathematics
1 answer:
GarryVolchara [31]3 years ago
4 0

Answer:

1. 14 2. 7 3. 6 4. 4 5. 18 6. 3.5 7. 4 8. 35

for number one, 34/17 is equal to 2 as 17 goes into 34 2 times. so to get the answer for the second fraction, you need to multiple the denometor (7) by two. for number two, 16/32 is equal to 1/2 if simplified by their greatest common factor (16), so for the second fraction you need to put half of the denometor (14). for number three, 21/7 simplifies to be 3, as 7 goes into 21 three times. so the first fraction must also equal three. 18/6 is equaled to three as 6 goes into 18 three times. number four - 3/12 simplifies to get 1/4, when you divide by three. so for the first to equal 1/4, you need to divide 16 by 4, which is 4. number five - 15 goes into 45 three times, so it is simplified to 1/3, so for the second multiple 6 by three to get 18. number six- is easy, 3/6 is obviously 1/2 so you must take 1/2 of 7 - which is 3.5 - to get the numerator. number seven - I CHANGED # 7! instead i got 4, as 6/9 is equal to 2/3 when divided by their common factor - 3 - so take 2/3 of 6 for the first fraction and you get 4. number eight - 2/10 is equal to 1/5 when divided by their greatest common factor to simplify, so simply multiple 7 by 5 so the seven is one fifth of the denometer (35)

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drek231 [11]
Hello!

Since we already see an equation that equals y (-2x-4), we can plug that equation into the first to solve for x.

x+4(-2x-4)=19
x-8x-16=19
-7x=35
x=-5

Now that we know the value of x, we will plug it into the second equation to solve for y.

y=-2(-5)-4
y=10=4
y=6

This gives us the answer below

\left \{ {{x=-5} \atop {y=6}} \right.

The correct answer is A) (-5,6)

I hope this helps!
7 0
3 years ago
Plz help me i dotn know this
miv72 [106K]

Answer:

it's D. I think 105 cubic feet

3 0
3 years ago
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I think its C, not sure
Alona [7]
Yes; you are correct.
___________________________________________________
The correct answer is:
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Answer choice:  [C]:  " x³ − 9x² + 23x <span>− 12 " .
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Note: (a </span>− b) (c − d + e) = ac − ad + ae − bc + bd − be ;
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          (x − 4) (x² <span>− 5x + 3) = 

   x * x</span>² = x³ <span>− 

   x * 5x = 5x</span>² + 

   x * 3   = 3x <span>−

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</span>          (x − 4) (x² − 5x + 3) = 

x³ − 5x² + 3x −4x² − (-20x) + (-12) ;

=  x³ − 5x² + 3x −4x² + 20x − 12 ;

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= x³ − 9x²  + 23x − 12 ;  which is:
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Answer choice:  [C]:  " x³ − 9x²  + 23x − 12 " .
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7 0
3 years ago
Which equation represents a proportional relationship?
Mama L [17]

Answer:

A. y = 1/2 x

Step-by-step explanation:

A proportional relationship between two quantities is a collection of equivalent ratios, related to each other by a constant of proportionality. In other words, if each point on the line can be put as a fraction and reduced to the same fraction, the relationship is proportional.

7 0
2 years ago
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A square grassy field is watered by 4 sprinklers. The sprinklers spray water in a circular pattern, as shown above. If the field
enot [183]
The answer is (3600 - 900π) ft²

Step 1. Find the radius r of circles.
Step 2. Find the area of the portion of the field that will be watered by the sprinklers (A1)
Step 3. Find the total area of the field (A2)
Step 4. Find the area of the portion of the field that will not be watered by the sprinklers (A)

Step 1. Find the radius r of circles
r = ?
According to the image, radius of a square is one fourth of the field side length:
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Step 2. Find the area of the portion of the field that will be watered by the sprinklers.
The area of the field that will be watered by the sprinklers (A1) is actually total area of 4 circles with radius 15 ft.
Since the area of a circle is π r², then A1 is:
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Step 3. Find the total area of the field (A2)
The field is actually a square with side s = 60 ft.
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Step 4. Find the area of the portion of the field that will not be watered by the sprinklers (A).
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3 years ago
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