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True [87]
3 years ago
11

Simplify the expression (8-√5)(8+√5) 39 59 64+√5 69+16√5

Mathematics
1 answer:
irakobra [83]3 years ago
4 0
Using the identity a^2 - b^2 = (a - b)(a + b):-

this is 8^2 - (sqrt5)^2  = 64 -  5  = 59 Answer
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Lacy opened a savings account and deposited $100. The account earns 6% interest compounded monthly if she wants to use the money
Dafna11 [192]

Answer:

Future Value= $112.72

Step-by-step explanation:

Giving the following information:

Initial deposit (PV)= $100

Number of periods (n)= 2*12= 24 months

Interest rate (i)= 0.06/12= 0.005

<u>To calculate the future value (FV), we need to use the following formula:</u>

FV= PV*(1 + i)^n

FV= 100*(1.005^24)

FV= $112.72

5 0
3 years ago
(x+y+2)(y+1) &lt;--- Please help,will mark brainly
kifflom [539]

Answer:

y^2+xy+x+3y+2

Step-by-step explanation:

first of all we have to multiplies the y in the second bracket for all numbers in the first bracket.

so we have:

xy+y^2+2y

now we have to do the same with 1

x+y+2

now we have to unite the two solutions

xy+y^2+2y+x+y+2

at least we have to added up the similar terms (that have the same literal part)

y^2+xy+x+3y+2

6 0
3 years ago
Write the equation in slope intercept form of the line that passes through the point (1,-3) and a slope of -2
Alborosie

Answer:y=-2x-1


Step-by-step explanation:

(1,-3) and a slope of -2

Use Formula

Y= mx +b to find b. By using the slope and point given .

M is slope

Y is -3

X Is 1



Y=mx+b


-3= -2(1)+b


-3= -2+b


-3+2=b


-1=b


Now create the equation by inputting the slope they gave you which is -2 and answer we solved for b which is -1 .


Y= -2x-1

4 0
3 years ago
A ticket to a particular theme park regularly costs $84.99, however the theme park is running a spring break special for 15% off
Ilya [14]

Answer: 306.30

Step-by-step explanation:

DiscountPrice = 84.99 - (84.99 x 0.15)

Cost for 4 = discountPrice x 4

Total = cost for 4 x 1.06

5 0
2 years ago
Read 2 more answers
How would I finish solving this?
Zarrin [17]
Hello!

The original equation is:

200 = (5w ÷ 2)8

This problem can be written as:

200 = (5w/2)8

And you can then reduce the numbers with 2:

200 = 5x * 4
200 = 20x
10 = x

Your correct answer is 10.
3 0
3 years ago
Read 2 more answers
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