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Leto [7]
3 years ago
5

What is the volume of a hemisphere with a radius of 4.3 cm, rounded to the nearest tenth of a cubic centimeter?

Mathematics
1 answer:
ladessa [460]3 years ago
5 0

Step-by-step explanation:

\frac{4}{3} \pi {(4.3)}^{3}  \\  \frac{4}{3} \pi(79.507) \\  \frac{318.028}{3} \pi \\ 106.0093\pi \\  \frac{1}{2} 333.038  \\ 166.5 {cm}^{3}

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Pls helppp me with this
Annette [7]

Answer:

15

Step-by-step explanation:

Applying,

The angle bisector theorem of triangle

From the diagram,

Since ΔAMT is an issoceless triangle,

Then,

Line OA divides Line MT into two equal parts.

Therefore,

Line MO = Line OT.............. Equation 1

From the diagram,

Line MO = 4x-1, Line OT = 3x+3

Substitute into equation 1

4x-1 = 3x+3

Collect like terms

4x-3x = 3+1

x = 4.

Therefore,

OT = 3(4)+3

OT = 12+3

OT = 15

7 0
3 years ago
7. Rose can type 70 words per minute (wpm). At this rate, how many words can she type in 30 minutes? a. 3100 wpm b. 40 wpm c. 21
Irina-Kira [14]

Answer:

a. 3100 wpm

1 \: minute = 70 \: words \\ 30 \: minutes  = (30 \times 70) \: words \\  = 2100 \: words

3 0
3 years ago
Which values represent the first two terms of the sequence a1=2 and an=-2(an-1)^2?
Mars2501 [29]
Hello,

a_{1}=2
a_{n+1}=-2*a_{n}^2

a_{1}=2
a_{2}=-2*2^{2}=-8
a_{3}=-2*(-8)^{2}=-2*64=-128


Answer C






3 0
3 years ago
What is 1.5533 rounded to the nearest cent
marta [7]
Centi = Hundreds. 
1.5533.
Round up by seeing if the number to the right of the hundreds place is 5 or higher. If it's not, don't change anything.
1.55 is your answer.
4 0
3 years ago
How do I find the sum of 6(-2.1k-2) + (7k+5)
baherus [9]

Answer:

-5.6k-7

Step-by-step explanation:

you'd start by multiplying 6 by everything in the first pair of parentheses:

6(-2.1k-2)= (-12.6k-12)

then you'd add the like terms together:

(-12.6k-12)+(7k+5)= -5.6k-7

8 0
3 years ago
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