3 years ago

How do both shaded models show that 30 hundredths is the same as 3 tenths?

Mathematics

1 answer:

creativ13 [48]3 years ago

8 0

Hi! I think you’re missing part of your question

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Please helpp <br> 25 = (a - 29/10

dedylja [7]

Step-by-step explanation:

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3 0

3 years ago

What is the sum of a 7-term geometric series if the first term is -6, the last term is -24,576, and the common ratio is 4?

Zanzabum

<h3><u>Answer:</u></h3>

Hence, the sum of a 7-term geometric series is:

-32766.

<h3><u>Step-by-step explanation:</u></h3>

We have to find the sum of a 7-term geometric series (i.e. n=7) if the first term(a) is -6, the last term is -24,576, and the common ratio(r) is 4.

We know that the sum of the 7-term geometric series is given as:

$S_n=a\times (\dfrac{r^n-1}{r-1})$

On putting the value of a,n and r in the given formula we have:

$S_7=(-6)\times (\dfrac{4^7-1}{4-1})\\\\\\S_7=-32766$

Hence, the sum of a 7-term geometric series is:

-32766.

3 0

3 years ago

Read 2 more answers

Factor completely<br> 9-6a-24a^2

Natasha_Volkova [10]

-24a²- 6a +9 = - 3(8a² +6a - 9)

8a² +6a - 9 =0

x=(-b +/-√(b² - 4ac))/2a
x = (-6 +/-√(36+4*8*9) /(2*8) = (-6 +/-√(324)  /16 =  (-6 +/-18)/16
x1 =  (-6 +18)/16 = 0.75
x2 =  (-6 -18)/16 = - 1.5

-24a²- 6a +9 = - 3(8a² +6a - 9) = -3(a - 0.75)(a + 1.5)

7 0

3 years ago

Read 2 more answers

A hot air balloon is descending

Harlamova29_29 [7]

Answer:

54 3/4

Step-by-step explanation:

18*3=54

1/4*3=3/4

6 0

3 years ago