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marin [14]
3 years ago
13

Find the sum to the equation 3+6+9+12...300

Mathematics
1 answer:
butalik [34]3 years ago
8 0

30 is less than 300 is the answer

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Find the Circumference of a circle with a Diameter of 9 inches Group of answer choices 9 pi inches 9 pi inches^2 9 pi inches^3 1
katen-ka-za [31]

Answer: 9\pi\ in.

Step-by-step explanation:

Given

The diameter of a circle is d=9\ in.

So, the radius is r=\frac{d}{2}=4.5\ in.

The circumference is given by 2\pi r

Insert the values

\Rightarrow 2\pi \cdot 4.5\\\Rightarrow 9\pi \ in.

Thus, the circumference of the circle is 9\pi\ in.  

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3 years ago
Evelyn drinks 8 glasses of water,which is 56 glasses of water a week.How many glasses of water does she drink in a year?(1 year
Sav [38]
Evelyn drinks 2,912 glasses of water a year.
7 0
3 years ago
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What is the slop for 3x + y = 1
Margarita [4]

Answer: 3

Step-by-step explanation:

5 0
3 years ago
Katie has a collection of nickels dimes and quarters with a total value of $4.20 there are 7 more dimes than nickels and six mor
Aneli [31]
Katie, Let the number of nickles = N Since there are 7 more dimes than nickles, the number of dimes D = N + 7 Since there are 4 more quarters than nickles, the number of quarters Q = N + 4 Since quarters = $0.25, dimes = $0.10, and nickles = $0.05 and all added together = $4.90 ⇒  0.25·Q + 0.10·D + 0.05·N = 4.90 Now multiply through by 100 to eliminate the decimal: 25Q + 10D + 5N = 490 Substitute for Q and D 25(N+4) + 10(N+7) + 5N = 490 25N + 10N + 5N +100 +70 = 490 40N + 170 = 490 ⇒ 40N = 320 ⇒ N = 320/40 N = 8, D = N+7 = 15 Q = N+4 = 12 Check: 25(12) + 10(15) + 5(8) = 300 + 150 + 40 = 490
7 0
3 years ago
A lifeguard on the shore in a chair that is 6 ft above the ground. She sees a swimmer at an angle of depression of 10°. About ho
melisa1 [442]

Answer:

  34 ft

Step-by-step explanation:

The mnemonic SOH CAH TOA reminds you of the relationship between adjacent and opposite sides of a right triangle and the trig function of the associated angle. Here, the relevant relation is ...

  Tan = Opposite/Adjacent

  tan(10°) = (height of lifeguard)/(distance from shore)

Then the distance from shore is ...

  distance from shore = (height of lifeguard)/tan(10°) ≈ (6 ft)/(0.17633)

  distance from shore ≈ 34 ft

3 0
3 years ago
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