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Dvinal [7]
3 years ago
13

(5, 3) is the solution to the system of linear equations: True False

Mathematics
2 answers:
amm18123 years ago
8 0

(5, 3) is the solution to the system of linear equations: THE ANSWER IS FALSE

Mkey [24]3 years ago
5 0
I believe it’s true!
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John grey bought a basic car for $32,750.00, with options that cost $375.00. there's a 6% sales tax in his state and a combined
Arturiano [62]
If it doesn't mean options as an added cost, it would be a total of $34,765.
If it means options as an added cost it would total to $35,140

7 0
3 years ago
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What is the value of the discriminant of the quadratic equation −1 = 5x2 −2x, and what does its value mean about the number of r
Zepler [3.9K]
For the equation:
-1=5 x^2 - 2 x
5 x^2 - 2 x + 1 = 0,           then we substitute: a=5,  b=-2,  c =1
to discriminant formula: D= b^2 - 4 a c = (-2)^2 - 4 * 5 * 1 = 4 - 20 = - 16
Answer:
The discriminant is equal to -16 which means the equation has no real number solutions. 
7 0
3 years ago
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Do any of you know any written answers to the Probability Unit Test for 7th grade? I need a little help!
andrew-mc [135]

All tests across the world are different even if they're the same subject and stuff. I think it's easier for you to study, so if you have any questions about them please post them on Brainly!

5 0
3 years ago
The function f(x)=50⋅0.8x models the number of ants in Jonathan's ant farm after it is stricken by a deadly ant disease, where x
alina1380 [7]

Answer:

Step-by-step explanation:

In the exponential growth/decay function

y=a(b)^x, in our situation,

y is the number of ants remaining in the colony after the growth or decay,

a is the initial number of ants in the colony, and

b is the growth/decay rate.  Rule:  if b is greater than 1, the function is growth; if b is greater than 0 but less than 1, the function is decay.

Our equation looks like this (it's given):

y=50(.8)^x

a = 50, which is the initial number of ants in the colony.

b = .8 (which actually means that then number of ants is declining by 20% each week).  Since .8 is a fraction of 1, this is decay.

So far, we know that 1 and 4 are true.  Let's look at 5.  We have to do some solving to find out if it's true or not.  If the number of ants after x = 2 weeks is 32, then we plug in 2 for x and see if the y we get as the answer is 32:

y=50(.8)^2  and

y = 50(.64) so

y = 32

5 is true as well.  Let's test 6 by replacing x with 8 and seeing if y = 10:

y=50(.8)^8 and

y = 50(.16777216) so

y = 8.388

6 is not true.

1, 4, 5 are true

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3 years ago
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Given the function f(x) = 0.3(4)x, what is the value of f−1(6)?
timofeeve [1]
Answer in  2.161 tell me if i made a mistake.
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