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Lunna [17]
3 years ago
10

In the system –12c + 3d = 6 and –3c + 6d = –9, which expression could you use for substitution?

Mathematics
1 answer:
inna [77]3 years ago
8 0

–12c + 3d = 6

12c = 3d - 6

c = 1/4 d - 1/2

Answer is

C. c = 1/4 d – 1/2

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ABC has vertices of A(0, 0), B(–4, 0), and C(–2, 4). The coordinates of each vertex are multiplied by 3 to create AEF. Determine
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That statement that determine if ABC is similar to AEF and base on the data and the vertices in the given problem. The statement that best describe the two triangle is letter C. Yes, they are similar with a scale factor of 1:30. I hope you are satisfied with my answer. 
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2 years ago
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Which statement is NOT always true? *
zalisa [80]

Answer:

dunno

Step-by-step explanation:

cuz im dum and im just here for the points sorry

6 0
2 years ago
30PTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1
Yuliya22 [10]

1)

a)

P = 1500, r = 4% = 0.04, n = 5

A = 1500 (1+0.04)^5= 1824.98

He shall have $1824.98 in his account after 5 years

b)

Here P = 1500 , r = 4% = 0.04, n = 5 but simple interest

So

I=PRn= 1500(.04)(5)=300

Interest = $300

Amount in his account after 5 years = 1500 + 300 = $1800

c)

First one shall yield a better income and by 1824.98-1800 = $24.98

2)

a)

P= $2000, r = 8% = 0.08 so quaterly = 0.08/4 = 0.02, n = 1 year

A = P(1+r)^{4n}  =2000(1+0.02)^4 =2164.86

There shall be $2164.86 after 1 year

b)

P = 2000, r= 8%=0.08 and n = 1 for simple interest

I=PRn = 2000(0.08)(1)=160

Amount after 1 year shall be 2000 + 160= $2160

c)

First option is a better option.

The difference is 2164.86 - 2160 = $4.86

3)

a)

Bank A

P= 3200, r = 3.5%= 0.035, n = 3 years for simple interest

I =3200(0.035)(3)=336

Interest earned in Bank A = $336

b)

Bank B

P = 3200, r = 3.4% = 0.034, n= 3

A= P(1+r)^n=3200(1+0.034)^3=3537.62

Interest earned = 3537.62 - 3200 = $337.62

c)

Tyler must choose Bank B as it fetches greater interest

d)

The difference in interest = 337.62 - 336 = $1.62


4 0
3 years ago
Are 7 and 42 relatively prime
Iteru [2.4K]
7 is a prime number, 72 is not a prime number.
Hope this helped!:)

8 0
3 years ago
Which expression is equivalent to (8x^3)^2/3
VARVARA [1.3K]

Answer: 64x^6/3

Step-by-step explanation:

(8x^3)^2/3

8^2(x^3)^3/3

64(x^3)^3/3

64x^6/3

Hope this helps, now you know the answer and how to do it. HAVE A BLESSED AND WONDERFUL DAY! As well as a great Superbowl Weekend! :-)

- Cutiepatutie ☺❀❤

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