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Blizzard [7]
3 years ago
13

-4x+y=24 and -14x+2y=-30. Use the substitution method to determine the solution.

Mathematics
1 answer:
STatiana [176]3 years ago
6 0
The answer is x=13 y=76
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IrinaK [193]
210 take 126/3 = 42 take 42x5 = 210
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3 years ago
An exponential function f(x)=a⋅bx passes through the points (0, 4) and (2, 64). What are the values of a and b?
Flura [38]

Answer:

a=b=4

Step-by-step explanation:

f(x) = a\cdot b^x\\f(0) = a = 4\\f(2) = 4b^{2} = 64 \rightarrow b = 4\\ f(x) = 4 \cdot 4^x

3 0
3 years ago
8. Solve the system of equations using substitution.
Elodia [21]

Answer:

D

Step-by-step explanation:

In order to solve this we need to plug in the answer choices and make sure they work for BOTH answers!

Let us start with option A. (6,3)  3 = 4(6) + 6     = 3 = 30 This is automaticly wrong because 3 doesnt equal 30. There is no need to try it on the second equation since the first one was wrong.

Next answer choice, B  (3,6)  6 = 2(3) =   6=6. The second equation works perfect for this. Now we have to make sure that it works for the first one as well. 6 = 4(3) + 6   = 6 = 18 which is wrong.

Next, C.  (1,2)   2 = 2(1) = 2=2 Right now lets check the other equation.

2 = 4(1) + 6 = 2=10. Wrong

Last, D. (-3, -6)    -6 = 2(-3)  = -6 = -6 Right now lets check the other equation.

-6 = 4(-3) + 6 = -6 = -6. CORRECT. Answer choice D works for both equations.

Sorry for the wait of response.

8 0
3 years ago
1. A CD in the financial sense is
PtichkaEL [24]

Answer:

  1.  a certificate of deposit

  2.  multiply the principal by the interest rate and time

Step-by-step explanation:

1. A CD is a savings vehicle called a "Certificate of Deposit." It generally specifies a certain rate of interest for a given period of time. It usually carries an interest penalty for early withdrawal.

__

2. The interest on a CD is calculated the way it is calculated for any other investment. The amount of interest in a given time is the product of the principal, the interest rate, and the time period. Interest on a CD with a period of more than 1 year is generally compounded. (The compounding interval will be part of the terms of the CD agreement.)

7 0
3 years ago
I need help with something. Can you solve this: 15% of 48.
Hitman42 [59]
The answer would be 7.2
7 0
4 years ago
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