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sweet [91]
3 years ago
9

Work out the value of v°​

Mathematics
2 answers:
Sav [38]3 years ago
7 0

Answer:

Step-by-step explanation:

v°+120°+91°+(180°-155°)=360°

v°+236°=360°

v°=360°-236°

v°=124°

aleksklad [387]3 years ago
4 0

Answer:

v+91=180(being co-interior angle)

v=180-91

v=89,

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Farmer bob's square plot ofland is slowly eroding away. Worried about the future of his farm. Farmer Bob measures the rate of er
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Answer:

Option A.

Step-by-step explanation:

Area of a square is

A=x^2               .... (1)

where, x is side length.

The length of each side of his square plot is decreasing at the constant rate of 2 feet/year.

\dfrac{dx}{dt}=2

It is given that bob currently owns 250,000 square feet of land.

Fist find the length of each side.

A=250000

x^2=250000

Taking square root on both sides.

x=500

Differentiate with respect to t.

\dfrac{dA}{dt}=2x\dfrac{dx}{dt}

Substitute x=500 and \frac{dx}{dt}=2 in the above equation.

\dfrac{dA}{dt}=2(500)(2)

\dfrac{dA}{dt}=2000

Farmer bob is losing 2,000 square feet of land per year.

Therefore, the correct option is A.

7 0
3 years ago
A boat traveling at a constant rate. In 4 seconds, the boat travels 80 feet what is the rate the boat is traveling at in feel pe
Varvara68 [4.7K]

Answer: 20 feet per second

Step-by-step explanation:

Do 80 divided by 4

6 0
3 years ago
Half a sphere is called a ?
Vesna [10]

Answer:

half a sphere is called a hemisphere

7 0
3 years ago
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A math teacher graded 45 problems in 3/5 of an hour. At that rate, how many problems can she grade in one hour
dolphi86 [110]

Answer:

75

Step-by-step explanation:

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6 0
3 years ago
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How much sugar syrup would you get by Making 5% sugar syrup using 6g sugar?
kherson [118]

Answer: 120 grams.

Step-by-step explanation:

Let x be the amount of sugar syrup made by 5% sugar syrup using 6g sugar.

Also, 5% =0.05

Therefore, 5% sugar syrup =5% of x = 0.05x

According to the question, we have

0.05x=6\\\text{Divide 0.05 on the both sides we get}\\\Rightarrow\ x=\frac{6}{0.05}\\\Rightarrow\ x=\frac{600}{5}\\\Rightarrow\ x=120

Hence, 120 grams sugar syrup is made by 5% sugar syrup of 6g sugar.

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4 years ago
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