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aleksandrvk [35]
3 years ago
12

Select the best answer for the question

Mathematics
1 answer:
Usimov [2.4K]3 years ago
7 0

Answer:

its 72%

Step-by-step explanation:

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What is m∠AEB?<br><br> I'll give Brainliest
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I am pretty sure the answer is x=25 degrees. Since those two line segments intersect each other straightly, those two angles in the question will be the same. Therefore, y
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4 years ago
Given equation of a circle: x^2 – 4x + y^2 + 6y = 12 rewrite it in a standard form. Find its radius and coordinates of its cente
Yuki888 [10]

Answer:

<u>The standard form is:</u>

  • (x - h)² + (y - k)² = r², where (h, k) is the center, r is the radius

<u>Convert the given into standard form by completing square:</u>

  • x² - 4x + y² + 6y = 12
  • x² - 4x + 4 + y² + 6y + 9 = 12 + 4 + 9
  • (x - 2)² + (y + 3)² = 25
  • (x - 2)² + (y + 3)² = 5²
  • The standard form is above.
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7 0
3 years ago
The mass of a proton is about 1.7 \times 10^(-24). Write this number in standard notation.
OLga [1]

Now we have a negative exponent, which is the opposite of a positive exponent.

If a positive exponent means you're multiplying by 10s and it makes a number bigger by moving the decimal to the right, then

the opposite of this is that a negative exponent means you're dividing by 10s and making the number smaller by moving the decimal point to the left.

 

Examples:

930 \div 10 = 93

{\bf930 \div 10} \div 10 = {\bf 93} \div 10 = 9.3

 

The trick is to recognize that

930 \div 10 is the same thing as 930 \times 10^{-1}

{}\div 10 and {}\times 10^{-1} mean the same thing.

So, 930 {\bf {}\div 10 \div 10} = 930 {\bf {}\times 10^{-1}  \times 10^{-1}} = 930 {\bf {}\times 10^{-2}} = 9.3

 

For your exercise, {}\times10^{-24} means you'll move the decimal point 24 places to the left, to make the number smaller.

3 0
3 years ago
Ms.Littlebird is shopping at a farmers market. She buys 10 eggs for $0.33 per egg. She also buys 3 pounds of beets at a cost of
hjlf

Answer: she spent $10.21

Step-by-step explanation:

She buys 10 eggs for $0.33 per egg. This means that the total cost of eggs that she bought would be

10 × 0.33 = $3.3

She also buys 3 pounds of beets at a cost of $1.42 per pound. This means that the total cost of of beets that she bought would be

3 × 1.42 = $4.26

Before she leaves, Ms. Littlebird purchases 5/8 lb of spinach, which costs $4.24 per pound. This means that the total cost of spinach that she bought would be

5/8 × 4.24 = $2.65

Total amount that Ms Littlebird spend at the farmers market is

3.3 + 4.26 + 2.65 = $10.21

8 0
4 years ago
Of all the students that Mikey surveyed, 30% said they play baseball. If 21 students play baseball, how many students did Mikey
Ulleksa [173]

Answer:

70 students

Step-by-step explanation:

As, 30% Mike surveyed

And these 30% are 21 students

So 30% of X = 21

= 30/100 x X = 21

= 30X = 2100

So X = 2100/30

X = 70

So 70 students were surveyed

5 0
3 years ago
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