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ANTONII [103]
3 years ago
8

Find the total surface area of a sphere radius being 7cm

Mathematics
1 answer:
Lilit [14]3 years ago
6 0

Answer:

A≈615.75m²

Step-by-step explanation:

Solution

A=4πr2=4·π·72≈615.75216m²

Hope this helped!!!

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The following table shows a proportional relationship between x and y.
RUDIKE [14]

Answer:

Assume x is directly proportional to y :

y \:  \alpha  \: x \\ y = kx

when y is 9, x is 2:

substitute to find value of k :

9 = (k \times 2) \\ k =  \frac{9}{2}

Therefore, equation is:

{ \boxed{ \boxed{2y = 9 x}}}

8 0
3 years ago
Find the percent cost of the total spent on each equipment $36, fees $158, transportation $59
Evgen [1.6K]

Percent cost of the total spent on

each equipment = 14.23%,fees=62.45% and transportation = 23.32%.

As given in the question,

Money spent on

Each equipment = $36

Fees = $158

Transportation = $59

Total money spent = $( 36 + 158 + 59)

                             = $253

Percent cost of the total spent on

Each equipment = (36/253) × 100

                          = 14.23%

Fees = (36/253) × 100

        = 62.45%

Transportation =(36/253) × 100

                       = 23.32%

Therefore, percent cost of the total spent on

each equipment = 14.23%,fees=62.45% and transportation = 23.32%.

Learn more about percent here

brainly.com/question/14699403

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6 0
2 years ago
Jenny spins a fair 4-sided spinner what is the probabiliity that the spinner will land on a or b
algol [13]

We require a picture of said spinner to see which sides say a and which say b

6 0
2 years ago
3. Find the midpoint between the following points. (-2,-5) and (-3,1) ​
Vadim26 [7]

Answer:

Step-by-step explanation:

(x₁, y₁) = (-2 , -5)   & (x₂ , y₂) = (-3 , 1)

Midpoint = (\frac{x_{1}+x_{2}}{2},\frac{y_{1}+y_{2}}{2})

          =(\frac{-2 + [-3]}{2} ,\frac{-5 + 1}{2})\\\\\\=(\frac{-5}{2} , \frac{-4}{2})\\\\=(-2.5, -2)

7 0
3 years ago
Find the product of 3 1/5 and 7 1/4. Express your answer in simplest form.
nata0808 [166]
If I'm not mistaken, it should be 28/5 or 5 3/5 as the product is timesing the products together
8 0
3 years ago
Read 2 more answers
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