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11Alexandr11 [23.1K]
3 years ago
14

Which expression is equivalent to 4(3 plus 5) - 3 x18

Mathematics
1 answer:
Veseljchak [2.6K]3 years ago
6 0

Answer:

-22

Step-by-step explanation:

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Write the exponential equation for the given situation. A tennis tournament starts with 128 participants. Each round, half of th
inysia [295]

Answer:

y= 128(1-.5)^t

Step-by-step explanation:

6 0
3 years ago
Please help! The volume of an inflated spherical water balloon is 121,500 pi millimeters to the third. What is the radius of the
irga5000 [103]

Answer:

The radius of the inflated spherical balloon  is 45 millimeters.

Step-by-step explanation:

Volume of the spherical water balloon = 121,500 pi  cubic millimeters

Let the radius of the balloon = r

Now, Volume of a Sphere = \frac{4}{3} \pi r^{3}

⇒\frac{4}{3} \pi r^{3}  = 121,500 \pi

On solving for the value of r, we get:

r^{3}  = \frac{121,500\times 3}{4}   = 91125\\ \implies  r  = \sqrt[3]{91125}

or, r  = 45 millimeter

Hence, the radius of the inflated spherical balloon  is 45 millimeters.

5 0
3 years ago
Finding angles , please help
jek_recluse [69]

Answer:

  • m∠C = 43.6°, m∠B = 107.4°, b = 51.2

Step-by-step explanation:

<u>Use the law of sines:</u>

  • a / sin ∠A = c / sin ∠C
  • 26 / sin 29° = 37 / sin ∠C
  • sin ∠C = 37 sin 29° / 26
  • sin ∠C = 0.6899
  • m∠C = arcsin 0.6899
  • m∠C = 43.6°

<u>Find the missing angle:</u>

  • m∠B = 180° - 29° - 43.6° = 107.4° (rounded)

<u>Use the law of sines to find the length of b:</u>

  • a / sin ∠A = b / sin ∠B
  • 26 / sin 29° = b / sin 107.4°
  • b = 26 sin 107.4° / sin 29°
  • b = 51.2 units (rounded)
8 0
2 years ago
In △JKL, ​ LO=104 cm ​. What is the length of NO¯¯¯¯¯¯? Enter your answer in the box.
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Answer: The answer is 52 cm




8 0
3 years ago
Read 2 more answers
Ashley had a summer lemonade stand where she sold small cups of lemonade for 41.25 AND LARGE CUPS FOR $2.50. If Ashley solf a to
Rama09 [41]

Question:

Ashley had a summer lemonade stand where she sold small cups of lemonade for $1.25 and large cups for $2.50. If Ashley sold a total of 155 cups of lemonade for $265, how many cups of each did she sell

Answer:

The number of small cups of lemonades  is 98

The number of Large cups of lemonades is 57

Step-by-step explanation:

Given:

Cost of small lemonade  cups = $1.25

Cost of large Lemonade cups =  $2.50

Total number of lemonade cups  = 155 cups

The total cost for which the lemonade is sold =  $265

To Find:

Number of each types of lemonade sold = ?

Solution:

Let the number of small cups of lemonade sold be x

the number of large cups of lemonade sold be y

Then according to the question,

x+y = 155-----------------------------(1)

Then the amount earned by  selling small and large lemonade cups is $265

Then

1.25x+2.50y = 265------------------(2)

From (1)

y = 155-x----------------------------------(3)

Substituting (3) in (2), we get

1.25x+ (155-x)2.50 = 265

1.25 + (387.5 -2.50x) =265

-1.25x + 387.5 = 265

-1.25x= 265 -387.5

-1.25x =  -122.5

x = \frac{-122.5}{-1.25}

x= 98--------------------------------(4)

Substituting (4) in (3)

y = 155-98

y =57

6 0
3 years ago
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