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melamori03 [73]
2 years ago
9

I need help with this!!!!!!!!!

Mathematics
2 answers:
bija089 [108]2 years ago
6 0
The answer is B bc 8 time is the radius squared times pi
Rom4ik [11]2 years ago
6 0

Answer: B

Step-by-step explanation: The formula for the area of a circle is A = πr2. The way you find r is dividing the diameter by 2. So B is the answer.

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To estimate the length of the lake, caleb starts at one end of the lake and walk 95m. He then turns a 60° angle and walks on a n
aivan3 [116]

Answer:

Length of the lake is 97.30 m

Step-by-step explanation:

We have given Caleb starts at one end of the lake and walk 95 m

So d_1=95m

And then he turns at an angle of 60°

So \Theta =60^{\circ} and then again walk 8 m

So d_2=8m

We have to fond the total length of the lake , that is d

Total length of the lake is given by d=\sqrt{d_1^2+d_2^2+2d_1d_2cos\Theta }=\sqrt{95^2+8^2+2\times 95\times 8\times cos60^{\circ}}=97.30m

So length of the lake is 97.30 m

3 0
3 years ago
What is the measure of Z Z?<br>70°<br>110°<br>105°<br>35°​
Jobisdone [24]

Answer:

z = 110

Step-by-step explanation:

z + 35 + 35 = 180

z+70=180

z = 110

8 0
3 years ago
Read 2 more answers
4x + 4y + 2z = 8
Vikentia [17]
The answer is no, because the first two equations are right but the third equation equals -16 instead of -15. So the answer is no (2,-2,4) is not the solution to all the system of equations.
5 0
3 years ago
A concert ticket that originally cost $46.50 is on sale for $38.75. What is the percent of decrease, rounded to the nearest tent
Arturiano [62]
You subtract 38.75 from 46.5, which is 7.75. 7.75/46.5=about .16666, or 16.7 percent.
5 0
3 years ago
HELP PLEASE 10 POINTS!!!
7nadin3 [17]

Answer:

First, write 80% as 80100. Then write an equivalent ratio that has the answer in the numerator and 200 in the denominator. 100 x 2 is 200, so 80 x 2 will be the answer. 80 x 2 = 160. The answer is $160.

3 0
2 years ago
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