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VARVARA [1.3K]
3 years ago
13

2. Find the value of x. 110° (x + 30) po

Mathematics
1 answer:
Liula [17]3 years ago
5 0
The value of x is 80
(80+30) = 110
x= 80
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Find elapsed time between 7:10 am to 8:15am two way
Marianna [84]
First Way:
7: 10am to 8:00am = 50 mins
8:00am to 8:15am = 15 mins
Total = 50 min + 15 min = 65 mins = 1 hour 5 mins

Second Way:
7: 10am to 8:10am = 1 hour
8:10am to 8:15am = 5 mins
Total = 1 hour + 5 mins = 1 hour 5 mins

Answer : 1 hour 5 mins
7 0
3 years ago
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The after school craft center has 15 boxes of 64 crayons each. In 12 of the boxes , 28 of the crayons have not been used. All th
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You are going to do 64-28=36

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3 years ago
100 POINTS!!!!!
Oksanka [162]

Answer:

a. Ratio of their circumference = 2:3

b. The ratio of their surface areas = 2:3

c. The ratio of their volume = 4:9

Step-by-step explanation:

Let the cylinders be labelled as A and B respectively.

Diameter of cylinder A = 6 in,

its radius = \frac{diameter}{2}

                = \frac{6}{2} = 3 in

Diameter of cylinder B = 9 in,

its radius = \frac{diameter}{2}

               = \frac{9}{2}  = 4.5 in

Thus,

a. circumference of a circle = 2\pir

Circumference of cylinder A = 2\pir

                                               = 2 x \pi x 3

                                            = 6\pi in

Circumference of cylinder B = 2\pir

                                              = 2 x \pi x 4.5

                                              = 9\pi

Ratio of their circumference = \frac{circumference of cylinder A}{circumference of cylinder B}

                                               = \frac{6\pi }{9\pi }

                                               = 2:3

b. The surface area of a cylinder = 2\pirh

the surface area of cylinder A = 2\pirh

                                                  = 6\pih

the surface area of cylinder B = 2\pirh

                                                = 9\pih

The ratio of their surface areas = \frac{surface area of cylinder A}{surface area of cylinder B}

                                                 = \frac{6\pi h}{9\pi h}

                                                 = 2:3

c. Volume of a cylinder = \pir^{2}h

volume of cylinder A = \pir^{2}h

                                = \pi x 3^{2} x h

                                = 9\pih

volume of cylinder b = \pir^{2}h

                                    = \pi x 4.5^{2} x h

                                    = 20.25\pih

The ratio of their volume = \frac{volume of cylinder A}{volume of cylinder B}

                                         = \frac{9\pi h}{20.25\pi h}

                                         = 4:9

6 0
3 years ago
Functions f(x) and g(x) are composed to form h (x) = startroot x cubed minus 2 endroot. if f (x) = startroot x 2 endroot and g (
iren [92.7K]

Function Composition exists when two functions f(x) and g(x) result in another function h(x), such that h(x) = f(g(x)). For function composition h(x) =  f(g(x)), the value of a exist -4.

<h3>What is function Composition?</h3>

Function Composition exists when two functions f(x) and g(x) result in another function h(x), such that h(x) = f(g(x)). In other words, put the outcome of one function into the other one.

Here, h(x) = f(g(x))

which means, h(x) = f(x³+ a)

$h(x) = \sqrt{x^3+a+2}

$\sqrt{x^3-2} = \sqrt{x^3+a+2}

To estimate the value of a, we separate equal terms:

1) Both are squared, so we can "eliminate" the square;

2) x³ = x³

3) -2 = a+2

a = -4

For function composition h(x) =  f(g(x)), the value of a exist -4.

To learn more about function composition refer to:

brainly.com/question/17299449

#SPJ4

8 0
2 years ago
Item 20 You pay $4.35 for 0.75 pound of American cheese. You buy 2.5 pounds of Swiss cheese for $7.98 per pound. a. How much les
Alexus [3.1K]

Answer:

a. $2.18

b. $15.60

Step-by-step explanation:

a. Price per pound of American cheese = $4.35 / 0.75 = $5.8

Price per pound of Swiss cheese = $7.98

Difference in price per pound = $7.98 - $5.8 = $2.18

b. Total amount spent on swiss cheese = $7.98 x 2.5 = $19.95

Amount spent more on Swiss cheese than on American cheese = $19,95 - $4.35 = $15.60

4 0
3 years ago
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