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3 years ago

6

in a certain country the life expectancy of a woman born in 1995 was 80.2 years. Between 1995 and 2005, the life expectancy incr

eased 0.4 year every 5 years.

1 answer:

Taya2010 [7]3 years ago

3 0

The life expectancy would increase by 0.8 by 1995 to 2005 so a woman would be alive on average 81 years by 2005

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Your friend can clap his hands 28 times in 12 seconds. How many times can your friend clap his hands in 0.5 minute?

Mandarinka [93]

Answer:

6 times

Step-by-step explanation:

28claps =12seconds

? = 0.5minutes

60seconds=1minute

? =0.5 minutes

(cross multiply)

60*0.5/1 = ?

?=30seconds

28claps = 12secs

? =30secs

28*30/12 =?

?=70claps

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3 years ago

What are the zeros of f(x)=x^2+x-20?

zzz [600]

F(x) = x² + x - 20 = x² + 5x - 4x - 20 = x(x + 5) - 4(x + 5) = (x + 5)(x - 4)

f(x) = 0 ⇔ (x + 5)(x - 4) = 0 ⇔ x + 5 = 0 or x - 4 = 0 ⇒ x = -5 or x = 4

Answer: C. x = -5 and x = 4.

3 0

3 years ago

Can someone pls help

Tom [10]

5 balls = 3.1 pounds
1 ball = 3.1 ÷ 5 = 0.62 pounds

6 0

3 years ago

Here is the question !

Delvig [45]

Answer:

Step-by-step explanation:

Co-ordinates of F, G and H are:

F (-4, 5)

G (1, 10)

H (-9, 10)

You can find the lengths of sides by using the distance formula:

<em>length</em>(FG) = $\sqrt{(x_{2}-x_{1})^{2} + (y_{2}-y_{1})^{2}}$ = $\sqrt{(1-(-4))^{2} + (10-5)^{2}} = 5\sqrt{2}$ units

Similarly,

<em>length</em>(GH) = 10 units

<em>length</em>(HF) = $5\sqrt{2}$ units

Hence, perimeter will be:

P = <em>length</em>(FG) + <em>length</em>(GH) + <em>length</em>(HF) = $10(\sqrt{2} + 1)$ units

3 0

3 years ago

Find the area of this parallelogram. Be sure to include the correct unit in your answer.

quester [9]

Answer:

90yd

Step-by-step explanation:

to find the area you have to do base times height so it is 6x15=90

6 0

3 years ago

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