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ziro4ka [17]
2 years ago
8

Please help. im stuck on this one ​

Mathematics
1 answer:
pav-90 [236]2 years ago
6 0

Answer:

B

Step-by-step explanation:

Substitute the coordinates of the point into the left side of the equation and if the value obtained equals the right side then it is a solution.

A (- 4, 4 )

- 3(- 4) - 4 = 12 - 4 = 8 ≠ 6 ← not a solution

B (- 3, 3 )

- 3(- 3) - 3 = 9 - 3 = 6 ← this is a solution

The result is B

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Christopher is 20 years younger than Ishaaan. Ishaan and Christopher first met two years ago. Fourteen years ago, Ishaan was 3 t
andrey2020 [161]

Answer:

Christopher is 24 years old now

Step-by-step explanation:

I honestly don't know how I got my answer but I know it's correct

7 0
3 years ago
1). Solve for n n - 63 = 126 *
Zinaida [17]

Answer:

n=189

Step-by-step explanation:

n-63=126\\n=126+63\\n=189

I hope this helps! :)

Brainliest? ✨

4 0
2 years ago
Can someone please help me with this question
kondor19780726 [428]
A. 

To solve, you need to get the variable by itself. 
Order of operations:
Square root both sides.
(x-5)= plus/minus root 3, as 3 is not a perfect square.
Now you need to add 5 to both sides to get it to disappear on the side with the x.

x=root3 +or - 5, which can be rearranged so that 5 is the first term.
8 0
3 years ago
Read 2 more answers
The diameter, D, of a sphere is 15 . Calculate the sphere's volume, V . Use the value 3.14 for pi , and round your answer to the
sergeinik [125]

Answer:

V= 1767.2

Step-by-step explanation:

V=4/3πr3

(I'm pretty sure I rounded that right. If not it's 1767.15 before rounding. )

4 0
2 years ago
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How long will it take to have R30 000 for a trip to Europe if I invest R20 000 now at 15% per year, compounded quarterly?
maw [93]

<span>Compound  interest  formula</span>

A=P(1+ \frac{r}{n} )^{nt}

 

Where

<span>
A= Future value
P = the Principal (the initial amount of money) 
r = annual interest rate</span>

t = time

<span>n= number of times compounded in one t






Remark
----------------------------------------------------------------------------------

r is generally a percentage like 3%, 7% etc and are applied in the formula as 0.03, 0.07..., 

the interest is compounded generally annually (n=1), quarterly (n=4), monthly (n=12), etc...

t is in years,


In our problem:

</span>

A= 30 000

P =20 000

r = 15%=0.15

time = t = ?

n= 4

applying the formula:

A=P(1+ \frac{r}{n} )^{nt}\\\\30,000=20,000(1+ \frac{0.15}{4} )^{4t}\\\\ \displaystyle{\frac{30,000}{20,000} =(1.0375)^{4t}

\displaystyle{ 1.5={(1.0375^4)}^t\\\\

1.5=1.159^t\\\\ \displaystyle { t=log_{1.159}1.5=2.75

75% of 12 months is 3/4 of 12 months, which is 9 months

Answer: 2 years, 9 months

3 0
3 years ago
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