3 years ago

I only need help for no. 10

Mathematics

1 answer:

Stels [109]3 years ago

4 0

Use the quadratic formula and a=4, b=3, c=-4

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Can you please help me please =( I beg you

emmasim [6.3K]

Answer:

I think he made a mastake a step 3

Step-by-step explanation:

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3 years ago

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What is the mean score of the vaulter?

dsp73

~Hello There!~

6.856 + 7.923 + 8.135 = 22.914
22.914/3 = 7.638 <=== Mean score

Hope This Helps You!
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- Hannah ❤

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3 years ago

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3k - 2c + 8<br> use k = 7 and c = 4

Inga [223]

Answer:

Step-by-step explanation:

3 (7) - 2(4) + 8

21 - 8 + 8

13 + 8

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3 years ago

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How to factor 6x^2 + 8x + 7x + 21?

Nitella [24]

(23+15x) when you add this you will have your answer

8 0

3 years ago

Leo's bank balances at the end of months 1, 2, and 3 are $1500, $1530, and $1560.60,

grandymaker [24]

Leo's balance after 9 months will be: $1757.49

Step-by-step explanation:

It is given that the balances follow a geometric sequence

First of all, we have to find the common ratio

Here

$a_1 = 1500\\a_2 = 1530\\a_3 = 1560.60$

Common ratio is:

$r = \frac{a_2}{a_1} = \frac{1530}{1500} = 1.02\\r = \frac{a_3}{a_2} = \frac{1560.60}{1530} = 1.02$

So r = 1.02

The general form for geometric sequence is:

$a_n = a_1r^{n-1}$

Putting the first term and r

$a_n = 1500 . (1.02)^{n-1}$

To find the 9th month's balance

Putting n=9

$a_9 = 1500 . (1.02)^{9-1}\\= 1500.(1.02)^8\\=1757.4890$

Rounding off to nearest hundredth

$1757.49

Hence,

Leo's balance after 9 months will be: $1757.49

Keywords: Geometric sequence, balance

Learn more about geometric sequence at:

#LearnwithBrainly

5 0

3 years ago