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2 years ago

8

Maria’s swim team consists of 6 sixth graders, 15 seventh graders, and 9 eighth graders. What is the probability that the captai

n will be an eighth grader? ( the total students go on the bottom of the ratio, the total number of 8th graders go on the top...reduce if possible)

1 answer:

Delvig [45]2 years ago

5 0

Answer: 9 out of 30

Step-by-step explanation:

so if worng

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3 years ago

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Can I factor this polynomial?<br><br> 9pr^2+73pr+70r

egoroff_w [7]

R(9p^2+73p+70)
r(9p+10)(p+7)

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2 years ago

A funnel has a diameter of 9 in. and is 16 in. tall a plug is put at the open end of the funnel what it the volume of the cone

SCORPION-xisa [38]

The volume of the cone by definition is given by:
V = (pi * r ^ 2 * h) / 3
Where,
h: height
r: radio
Substituting the values we have:
V = (pi * (9/2) ^ 2 * (16)) / 3
V = 339.2920066 in ^ 3
Rounding:
V = 339.3 in ^ 3
Answer:
the volume of the cone is:
V = 339.3 in ^ 3

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3 years ago

Using the geometric mean and Pythagorean theorem, calculate the values of the missing sides. Round your answers to the thousandt

Pachacha [2.7K]

Answer:

a = 9.849

b = 20.25

c = 491.03

Step-by-step explanation:

By using Pythagoras theorem in the right triangle BDC,

(Hypotenuse)² = (Leg 1)² + (Leg 2)²

BC² = BD² + DC²

a² = 9² + 4²

a = $\sqrt{(81+16)}$

a = $\sqrt{97}$

a = 9.8489

a ≈ 9.849 units

By mean proportional theorem,

$\frac{\text{DC}}{\text{BD}}=\frac{\text{BD}}{\text{AD}}$

AD × DC = BD²

b × 4 = 9²

b = $\frac{81}{4}$

b = 20.25 units

BY Pythagoras theorem in ΔADB,

AB² = AD² + BD²

c² = b² + 9²

c² = (20.25)² + 9²

c² = 410.0625 + 81

c = 491.0625

c = 491. 063 units

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3 years ago

Find the eighth term of the sequence 5,3,-1,-7,-15

Leni [432]

Hope this will help you 2(-15)-1=-31

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3 years ago