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grigory [225]
3 years ago
7

WILL MARK BRAINLIEST IF YOU ANSWER THIS CORRECTLY AND FULLY WORTH TONS OF POINTS a goat is kept on a 4 meter chain connected to

a metal hook in the ground. Approximately what area of grass can she eat? If she is chained at the center of the 8 meter side of the garage what area of grass can she eat
Mathematics
2 answers:
Svet_ta [14]3 years ago
6 0

Answer:

1. 16π m^2

2. 8π m^2

Step-by-step explanation:

We can think of this as a circle. The goat can at most be 4m away from the center. This can be visualized as a circle with 4m radius. The area for that is πr^2, or 4^2π, which is 16π meters squared.

Now, the goat has a semicircle of land because half of the circle area she once had is taken up by the side of the garage. 1/2 of 16π is 8π meters squared.

Good Luck!

FinnZ [79.3K]3 years ago
4 0
Pi r^2, in other words 16pi
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Percy delivers pizzas for pizza king. He is paid $6 an hour plus $2.50 for each pizza he delivers. Percy earned $280 last week.
Triss [41]
Hey You!

6 × 30 = 90

280 - 90 = 190

190 / 2.50 = 76

We can check using multiplication.

2.50 × 76 = 190

Percy delivered 76 pizzas.
7 0
3 years ago
I NEED HELP LIKE ASAP, IF UR CORRECT I'LL MARK U BRAINLIEST.
Reil [10]

Answer:

D

Step-by-step explanation:

The initial value is the beginning output value, or the y-value when x = 0. Therefore, since y is at 7 when x is at 0, the answer is 7.

5 0
3 years ago
Calculate the distance between the points Q = (2, -1) and K = (6,-9) in the coordinate plane.
White raven [17]

Answer:

Sqrt 80 = 8.94

Step-by-step explanation:

d = sqrt[(x-x)^2 + (y-y)^2]

d = sqrt [(6-2)^2 + (-9 - - 1)^2]

d = sqrt [(4)^2 + (-8)^2]

d = sqrt (16 + 64)

d = sqrt 80

d = 4 sqrt 5 = 8.94

3 0
3 years ago
Determine the mass of a solid steel ball that has a diameter of 10 cm. The density of pure steel is 8.09 g/cm3
Basile [38]

Answer:

<em>The mass of the steel ball is 4,235.9 gr</em>

Step-by-step explanation:

<u>Density</u>

The density ρ of a substance is a measure of its mass per unit volume:

\displaystyle \rho=\frac{m}{V}

If the density and the volume are given, the mass can be calculated by solving the above formula for m:

m=\rho.V

We know the density of pure steel ρ=8.09 gr/cm3 and the diameter of a solid steel ball d=10 cm.

We need to calculate the volume of the sphere:

The volume of a sphere of radius r is given by:

\displaystyle V=\frac{4}{3}\cdot \pi\cdot r^3

The radius is half the diameter: r= 10/2 = 5 cm. Thus:

\displaystyle V=\frac{4}{3}\cdot \pi\cdot 5^3

Calculating:

V=523.6\ cm^3

The mass is:

m=8.09 gr/cm^3 \cdot 523.6\ cm^3

m=4,235.9 gr

The mass of the steel ball is 4,235.9 gr

4 0
3 years ago
A bakery recorded the number of muffins and bagels it sold for a seven day period. For the data presented, what does the value o
atroni [7]

Answer:

Mean of bagel

Step-by-step explanation:

Working out each of the statically summaries Given in the option :

Mean of muffin :

Mean = Σx / n

n = sample size

(61 + 20 + 32 + 58 + 62 + 61 + 56) / 7

= 350 / 7

= 50

Mean of bagel :

Mean = Σx / n

n = sample size

(34 + 45 + 43 + 42 + 46 + 72 + 75) / 7

= 357 / 7

= 51

Hence, from the result obtained, we could see that the value of 51 summarizes the mean of bagel.

3 0
3 years ago
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