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Anettt [7]
4 years ago
8

Help me please it’s on spheres thankyou

Mathematics
2 answers:
Mariulka [41]4 years ago
8 0

Answer:

Surface area = 452,4

Step-by-step explanation:

radius = 6 cm

Surface area = 4πr²

Surface area = 4(3.1416)(6)²

Surface area = 12.5664 (36)

Surface area = 452, 3904

Surface area = 452,4

aivan3 [116]4 years ago
4 0

Answer:

452.3893421 cm^2

452.4 (to one decimal place)

Step-by-step explanation:

Radius (r) - 6cm

The surface area of sphere = 4pi r^2

therefore:

4 * pi * 6^2

4 * pi * 36

144 * pi

452.3893421 cm^2

452.4 (to one decimal place)

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Calendar
nikitadnepr [17]

Answer:

(a) C = 0.29<em>t</em> + 2.50

(b) 5

Step-by-step explanation:

The variables are defined as follows:

<em>t</em> = the number of  toppings

<em>C</em> = total cost for ice cream

It is provided that:

  • An ice cream with no toppings is $2.50.
  • Every topping is priced at $0.29 each.

(a)

The algebraic equation to find the total cost for ice cream depending on the number of  toppings is:

C = 0.29<em>t</em> + 2.50

(b)

Compute the number of toppings Mr. Torrance can buy if  he wants to spend only $4.00 on it as follows:

C = 0.29<em>t</em> + 2.50

4.00 = 0.29<em>t</em> + 2.50

0.29<em>t</em> = 4.00 - 2.50

0.29<em>t</em> = 1.50

<em>t</em> = 5.1724

<em>t</em> ≈ 5

Thus, Mr. Torrance can buy 5 toppings.

5 0
3 years ago
Teddy will buy at least 15 bags of ice for the graduation picnic. Each large bag of ice costs $4.00, and each small bag of ice c
Sati [7]

Answer:

Step-by-step explanation:

x = large bag, y = small bag

x + y > = 15...thats greater then or equal

4x + 2.5y < = 50....thats less then or equal

======================

he can get 6 lg bags and 10 small bags

5 0
3 years ago
Instructions: Find the measure of the indicated angle to the nearest degree.<br> ?<br> 17<br> 7
yarga [219]

Answer:

? ≈ 24°

Step-by-step explanation:

Using the sine ratio in the right triangle

sin? = \frac{opposite}{hypotenuse} = \frac{7}{17} , then

? - sin^{-1} (\frac{7}{17} ) ≈ 24° ( to the nearest degree )

7 0
4 years ago
For how many movies is the cost of the plans the same?
sesenic [268]

Answer:

For 36 movies the cost of both the plans is same.

Step-by-step explanation:

Let us assume foe m movies, both the plans cost same.

Now, PLAN A:

Annual Fee = $45

Cost per movie  =  $2.50

⇒The cost of watching m movies  = m x (Cost of 1 movie)

= m x ($2.50) = 2.5  m

So, the total cost of Plan  A  = Annual Fee + Cost of m moves

                                                 = 45 + 2.50 m

PLAN B:

Cost per movie  =  $3.75

⇒The cost of watching m movies  = m x (Cost of 1 movie)

= m x ($3.75) = 3.75  m

ACCORDING TO QUESTION:

for m movies,  Cost of plan A = Cost of plan B

⇒45 + 2.50 m  = 3.75  m

or, 3.75 m  - 2.5 m = 45

or, m  = 45/1.25 = 36

or, m  = 36

Hence, for 36 movies the  cost of  both the plans is same.

5 0
4 years ago
Write 5x+y =6 in function notation let y represent the dependent variable.
Dmitry [639]
<span> the answer is f(x) = 5x + 6</span>
7 0
3 years ago
Read 2 more answers
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