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Andre45 [30]
3 years ago
14

PLEASE HELP!! Also the last option is 4 units left and 3 units down

Mathematics
1 answer:
sergeinik [125]3 years ago
7 0

Answer:

B

Step-by-step explanation:

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A 150 cm pendulum swings through an arc which measured 100pi cm. In exact radians, through what angle does it swing?
choli [55]

Answer:

Pendulum will swing by an angle 0.666π

Step-by-step explanation:

We have given arc = 100\pi cm

And length of the pendulum l = 150 cm

Length of the pendulum will be equal to radius of the pendulum so r = 150 cm

Arc is given by arc=radius\times angle

So 100\pi =150\times\times  \Theta

\Theta =0.666\pi

So pendulum will swing by an angle 0.666π

5 0
3 years ago
During a test period, an experimental group of 10 vehicles using an 85 percent ethanol-gasoline mixture showed mean CO2 emission
Zinaida [17]

Answer:

-1.683

Step-by-step explanation:

Given :

Group 1 :

x1 = 667 ; n1 = 10 ; s1 = 20

Group 2 :

x2 = 679 ; n2 = 14 ; s2 = 15

The test statistic assuming equal variance :

x1 - x2 / √[Sp² * (1/n1 + 1/n2)]

sp² = [(n1 - 1)*s1² + (n2 - 1)*s2²] ÷ (n1 + n2 - 2)

Sp² = [(10 - 1)*20² + (14 - 1)*15²] = 296.59

Test statistic =

(667 - 679)/ √[296.59 * (1/10 + 1/14)]

-12 / 7.1304978

Test statistic = - 1.682

8 0
2 years ago
Which expressions are a factor of -48xyz -24xy +40
wariber [46]
A. 4 (is the only factor for expression -48xyz -24xy +40)
8 0
3 years ago
Write the number equal to 5 tens and 13 ones
cluponka [151]
10 ones = 1 ten

6 tens 3 ones
63
3 0
3 years ago
Find the slope of the picture shown
JulijaS [17]

your answer is C 2/3 referring to over to the right 2 times and up 3 times

3 0
2 years ago
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