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elena55 [62]
3 years ago
6

riya obtained the following score (out of 100) in a vocabulary test: 80,85,90,71,60,100. what is her mean score​

Mathematics
1 answer:
Greeley [361]3 years ago
3 0

Answer:

85

Step-by-step explanation:

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What is the answer for Ab•2b
7nadin3 [17]

Answer:

2Ab^2

Step-by-step explanation:

I think its right

4 0
3 years ago
What is the perimeter of a swimming pool that is 97 feet in length and 17 feet wide?
Lubov Fominskaja [6]

Answer:

228 ft

Step-by-step explanation:

P = 2(l+w)

We know the length is 97 and the width 17

P = 2(97+17)

   = 2(114)

   =228

6 0
3 years ago
Read 2 more answers
Griffins driveaway is 36 feet long. choose the word and number to complete the sentence correctly.to convert 36 feet to yards wh
never [62]
Divide 36 by 3 to convert from yards to feet. 
the yards to feet ratio is 3:1
5 0
3 years ago
Find the exact values of sin2 θ for cos θ = 3/18 on the interval 0° ≤ θ ≤ 90°
mote1985 [20]

Answer:

sin(2\theta)=\frac{\sqrt{35} }{18}

Step-by-step explanation:

Recall the formula for the sine of the double angle:

sin(2\theta)=2*sin(\theta)*cos(\theta)

we know that cos(\theta)=\frac{3}{18}, and that \theta is in the interval between 0 and 90 degrees, where both the functions sine and cosine are non-negative numbers. Based on such, we can find using the Pythagorean trigonometric property that relates sine and cosine of the same angle, what sin(\theta) is:

cos^2(\theta)+sin^2(\theta)=1\\sin^2(\theta)=1-cos^2(\theta)\\sin(\theta)=\sqrt{1-cos^2(\theta)} \\sin(\theta)=\sqrt{1-(\frac{3}{18} )^2}\\sin(\theta)=\sqrt{1-\frac{9}{324} }\\sin(\theta)=\sqrt{\frac{324-9}{324} }\\sin(\theta)=\sqrt{\frac{315}{324} }\\\\sin(\theta)=\frac{3}{18}\sqrt{35 }

With this information, we can now complete the value of the sine of the double angle requested:

sin(2\theta)=2*sin(\theta)*cos(\theta)\\sin(2\theta)=2*\frac{3}{18} \,\sqrt{35} \,\frac{3}{18}\\sin(2\theta)=\frac{2*3*3}{18*18}\,\sqrt{35} \\sin(2\theta)=\frac{\sqrt{35} }{18}

6 0
3 years ago
A fossil is 254 millimeters long. How many meters long is the fossil.
garik1379 [7]

it would be 0.254.

you have to convery the millimeter to meters

3 0
3 years ago
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