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2 years ago

Here is a picture of a math problem.

Mathematics

1 answer:

monitta2 years ago

7 0

53% I believe I'm OK in math

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Which of the following is the explicit rule for a geometric sequence defined by a recursive formula of for which the first term

Allushta [10]

.it should be C for the question

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2 years ago

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I need answer how to do

dolphi86 [110]

For number 3 the problem solving it can be What is the difference between the T REX and the triceratops

The last one u could put Add up all the dinos and what will u get.

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3 years ago

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It takes your garden hose 19 seconds to fill your 2-gallon watering can. How long in hours will it take to fill a circular infla

Marrrta [24]

Answer:

Time taken to fill the pool = 7.81 hours

Step-by-step explanation:

We are given that it takes 19 seconds to fill 2 gallons. Therefore, we can use cross multiplication to know how long will it take to fill one gallon as follows :

Time taken to fill 2 gallons of tank = 19 seconds

$\text{Time taken to fill 1 gallons of tank = }\frac{19}{2}\text{ = 9.5 seconds}$

Therefore, it takes 9.5 seconds to fill one gallon of water.

One gallon is equivalent to 0.133681 cubic feet

Therefore, it takes 9.5 seconds to fill 0.133681 cubic feet

Now, to find Volume of the pool :

radius of pool = 6 ft

volume of pool = pi × (radius)² × height

volume of pool = 3.14 × 6² × 3.5

volume of pool = 395.64 cubic feet

Time taken to fill 0.133681 cubic feet of water = 9.5 sec

$\text{Time taken to fill 395.34 cubic feet of water = }\frac{9.5}{0.133681}\times 395.64\\\\\implies\bf\textbf{Time taken to fill the pool = 28116.04 seconds}=\frac{28116.04}{60\times 60}\text{ hours}\\\approx 7.81\textbf{ hours}$

Hence, Time taken to fill the pool = 7.81 hours

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3 years ago

What is the radius and diameter of the following circle?

postnew [5]

Answer:

diameter= 13cm

radius= 6.5 cm

Step-by-step explanation:

please give brainliest! ty!

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2 years ago

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Let f(x) = x2 - 81. Find f-1(x).

aalyn [17]

The answer is 1) ± √x+81

Step 1: Substitute y for f(x). 
Step 2: Since every (x, y) has its partner (y, x)y switch x and y.
Step 3: Solve for y.

Step 1.
The function is: f(x) = x² - 81
Substitute y for f(x): y = x² - 81

Step 2.
Switch x and y: x = y² - 81

Step 3.
Solve for y (which is now f⁻¹(x)): f⁻¹(x) = y
x = y² - 81
y² = x + 81
y = +-√(x+81)

Therefore, the choice 1) is correct.

5 0

3 years ago