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labwork [276]
3 years ago
9

I need help please.

Mathematics
1 answer:
Levart [38]3 years ago
8 0

Answer:

tens: 9

hundreds: 2

thousands: 5

Step-by-step explanation:

you just look at what number is in each catagory

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using compound interest, how long does it take to double a 1000 dollar investment that pays 6.5% annual interest, compounded mon
KonstantinChe [14]

Answer:

11 years approx

Step-by-step explanation:

Given data

P=$1000

A=2000

R=6.5%

T= ?

Calculate time, solve for t

t = ln(A/P) / r

substitute

t=ln(2000/1000)/0.065

t=ln(2)/0.065

t=0.693/0.065

t=10.66

Hence the time is 11 years approx

3 0
3 years ago
The donut shop is 3 times as likely to sell a glazed donut as an apple donut . If the shop sells 231 glazed donuts, how many don
Vedmedyk [2.9K]

Answer

the number of  donuts sold is: 693

Step-by-step explanation:

i get this answer by taking:

231 x 3 = and that equal 693. this is the number  of donuts sold.

5 0
3 years ago
What is the answer for 2(a+b)=
Rainbow [258]
<h3>It is equivalent to 2a+2b</h3>

We use the distributive property.

Multiply the outer term 2 by each term inside ('a' and b)

2 times a = 2a

2 times b = 2b

We add those results to get 2a+2b. We cannot combine these terms as they are not like terms.

8 0
3 years ago
Y/5 = 8/7 solve for y.
Mariana [72]
Y is 40/7
that will be <span>5.71428571429

</span>
7 0
3 years ago
Read 2 more answers
Can I have help with 43 and 44 I need to see how to do them thanks.
aliina [53]

Answer:

see explanation

Step-by-step explanation:

(43)

3x^{5} - 75x³ ← factor out 3x³ from each term

= 3x³(x² - 25) ← this is a difference of squares and factors in general as

a² - b² = (a - b)(a + b) , thus

x² - 25 = x² - 5² = (x - 5)(x + 5)

Thus

3x^{5} - 75x³ = 3x³(x - 5)(x + 5)

(44)

81c² + 72c + 16 ← is a perfect square of the form

(ac + b)² = a²c² + 2abc + b²

Compare coefficients of like terms

a² = 81 ⇒ a = \sqrt{81} = 9

b² = 16 ⇒ b = \sqrt{16} = 4

and 2ab = 2 × 9 × 4 = 72

Thus

81c² + 72c + 16 = (9c + 4)²

3 0
3 years ago
Read 2 more answers
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