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IgorLugansk [536]
3 years ago
6

Cho x+y=1 tìm gtnn của p=3xy+4

Mathematics
1 answer:
lora16 [44]3 years ago
6 0

Answer:

(Hope this helps can I pls have brainlist (crown) ☺️)

Step-by-step explanation:

In pic

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kramer
Answer: 5 in the 0-4 range, 0 in the 5-9 range, 3 in the 10-14 range, 4 in the 15-19 range, and 3 in the 20-22 range.

Explanation: it’s a histogram, which is similar to a bar graph, but its data points lie within ranges with values.
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Arc Length and Radians question- please help! Will mark brainliest! Is 20pts!
kherson [118]

Answer:

59

Step-by-step explanation:

If we convert from degrees into radians, we can use the formula

s=r\theta, where s is the arc length, r is the radius and θ is the angle in radians.

To convert from degrees to radians, we multiply by \frac{\pi}{180}

So \frac{140 \pi}{180} is our angle in radians, and we have the radius - we can now plug in these two values into our equation.

s=24*\frac{140 \pi}{180} =58.64

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The price of an item has been reduced by 40%. The original price was $50. What is the price of the item now?
Serhud [2]

Answer:

12.5

Step-by-step explanation:

40% is 0.4. 0.4 is 1/4. 1/4 * 50 is 12.5

8 0
3 years ago
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Kylie went into a grocery store and bought 3 apples and 4 bananas, costing a total of $6.50. Lily went into the same grocery sto
Katyanochek1 [597]

The system of equations that could be used to determine the price of each apple and the price of each banana is:

3x + 4y = 6.50

10x + 5y = 17.50

Where x is the price of each apple and y is the price of each banana

Step-by-step explanation:

The given is:

  • Kylie went into a grocery store and bought 3 apples and 4 bananas, costing a total of $6.50
  • Lily went into the same grocery store and bought 10 apples and 5 bananas, costing a total of $17.50

We need to write a system of equations that could be used to determine the price of each apple and the price of each banana

Assume that x represents the price per apple, and y represents the price per banana

∵ The price of each apple is $x

∵ The price of each banana is $y

∵ Kylie bought 3 apples and 4 bananas for a total $6.50

- Multiply x by 3 and y by 4, then add the products and equate

  the sum by 6.50

∴ 3x + 4y = 6.50 ⇒ (1)

∵ Lily bought 10 apples and 5 bananas for a total $17.50

- Multiply x by 10 and y by 5, then add the products and equate

  the sum by 17.50

∴ 10x + 5y = 17.50 ⇒ (2)

The system of equations that could be used to determine the price of each apple and the price of each banana is:

3x + 4y = 6.50

10x + 5y = 17.50

Where x is the price of each apple and y is the price of each banana

Learn more:

You can learn more about the system of equations in brainly.com/question/2115716

#LearnwithBrainly

3 0
4 years ago
21 and 22 are complementary angles.
Bumek [7]

The measure of angle 2 is \angle 2=14^{\circ}

Explanation:

Given that \angle 1 and \angle 2 are complementary angles.

Also, the measure of angle 1 is \angle 1= 76^{\circ

We need to determine the measure of \angle 2

Since, we know that the complementary angles add up to 90°, then the angles \angle 1 and \angle 2 add up to 90°.

Thus, we have,

\angle 1+\angle 2=90^{\circ}

Substituting the value of \angle 1 in the above expression, we have,

76^{\circ}+\angle 2= 90^{\circ}

Subtracting both sides by 76°, we get,

\angle 2 = 90^{\circ}-76^{\circ}

Simplifying, we have,

\angle 2 = 14^{\circ}

Thus, the measure of angle 2 is \angle 2=14^{\circ}

8 0
3 years ago
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