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Monica [59]
3 years ago
6

Find the point-slope equation for

Mathematics
1 answer:
Angelina_Jolie [31]3 years ago
7 0

Answer:

y+21=-4(x-7)

Step-by-step explanation:

y-y/x-x gives you the slope of -4

Plug in the numbers and you get your answer

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Find the area of the semicircle. Round your answer to the nearest hundredth.
LenaWriter [7]

Answer:

1.27388535028

Step-by-step explanation:

Simply using the formulas

3 0
3 years ago
Lamar borrowed S8000 at a rate of 13%, compounded quarterly. Assuming he makes no payments, how much will he owe after 10 years
LUCKY_DIMON [66]

The amount he needs to pay is $ 28753.61.

Step-by-step explanation:

Given,

Principal (P) = $ 8000

Time (T) = 10 years

Rate of interest (R) = 13%

The payment will be quarterly so, n = 4

To find the amount of compound interest.

Formula

Amount = P(1+\frac{R}{nX100} )^{nT}

Now,

Putting the values of P, T, n and R we get,

Amount = 8000(1+\frac{13}{4X100} )^{4X10}

= 28753.61 (approx)

3 0
4 years ago
Read 2 more answers
Which of the following is a factor of 2x4 + 22x3 + 60x2?
alex41 [277]
For the answer to the question above, 
2x^4 + 22x^3 + 60x^2 

<span>GCF: 2x^2 </span>

<span>2x^2(x^2 + 11x + 30) =
So the following factor for the problem above is
2x^2(x + 6)(x + 5) 
</span>
If you want to double check, just multiply the answer.
I hope my answer helped you.
3 0
4 years ago
Read 2 more answers
Need help with question 13B i can not figure it out please help.
Vsevolod [243]
Short Answer 10
The tough part is the number of drinks.
Let the number of them be x
4.5 x + 3 + (10/100) * (4.5x + 3) + (7/100) * (4.5 x + 3) ≤  60

The tip is not included in the tax, and the tax does not include the tip. You can shorten this up quite a bit.
4.5 x + 3 + (10/100) * (4.5x + 3) + (7/100) * (4.5 x + 3) ≤  60
(1 + 10/100 + 7 /100) (4.5x + 3) ≤  60     Combine the tax, tip, scone and Lattes 

(1.17) * (4.5x + 3) ≤ 60                            Divide by 1.17
4.5x + 3 ≤ 60 / 1.17 
4.5x + 3 ≤ 51.28                                      Subtract 3
4.5x ≤ 48.28                                            Divide by 4.5
x ≤ 48.28 / 4.5
x ≤ 10.72 

Discussion.
There's a problem. He can't buy 0.72 of a Latte. He can only buy 10 of them. In this case we must round down so what happens if he buys 10 lattes? Does the price the taxes and the tip allow him to get another Latte? The answer should be no because then you would be 11 lattes and the tip and taxes would push you over 60 dollars. But be careful, sometimes things like this can alter you answer.. 

Answer: 10 <<<<
7 0
3 years ago
Which situation can be modeled using the equation 5x+3=27​
gizmo_the_mogwai [7]

Answer:

40

Step-by-step explanation:

6 0
3 years ago
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