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Ksju [112]
3 years ago
10

Daniel and Sofia both solve this system of equations: y = -1.5x + 5.7 y = 0.5x + 0.3 Daniel's solution is (1.1, 2.4). Sofia's so

lution is (2.7, 1.65). They graph the equations to check their work. Based on the graph, whose solution is more likely to be correct?Daniel is more likely to be correct. The x-coordinate of the intersection is between 1 and 2 and the y-coordinate of the intersection is between 2 and 3. Sofia is more likely to be correct. The x-coordinate of the intersection is between 2 and 3 and the y-coordinate of the intersection is between 1 and 2. or niether
Mathematics
2 answers:
scoundrel [369]3 years ago
7 0
Y = -1.5x + 5.7
y = 0.5x + 0.3

-1.5x + 5.7 = 0.5x + 0.3
-1.5x - 0.5x = 0.3 - 5.7
-2x = - 5.4
x = -5.4/-2
x = 2.7

y = 0.5x + 0.3
y = 0.5(2.7) + 0.3
y = 1.35 + 0.3
y = 1.65

solution is (2.7, 1.65)

Sophia is more likely to be correct because the x coordinate is between 2 and 3 and the y coordinate is in between 1 and 2



OverLord2011 [107]3 years ago
7 0

Answer:

Sofia is more likely to be correct

=)

Step-by-step explanation:

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If x^(2) = 64 and y^(2)= 121 what is the value of x-y?
GalinKa [24]

Step-by-step explanation:

<em>the value of x is 8</em>

8^(2) = 64

the value of y is 11

11^(2) = 121

x - y

= 8 - 11

= -3

<h3>#CMIIW</h3>

3 0
2 years ago
The function f(x) = 200(0.5)x/50 models the amount in pounds of a particular
victus00 [196]

<u>Answer:</u>

29 years

<u>Step-by-step explanation:</u>

  • Given the function f(x)= 200(0.5)^{\frac{x}{50} }, where x stands for the number of years since the material was put into the vault, we can plug 140 into x to find the amount leftover.
  • Another way of doing this is to change the function to f(x)=200(0.5^{\frac{1}{50} })^{x} which are equivalent functions, and then plug 140 into x. This function is helpful if you also needed to find the rate.
  • I'll use the 1st function because the question doesn't ask for the rate

f(x)= 200(0.5)^\frac{140}{50}}

From here I'll just use a calculator & get 28.7, or 29 years.

4 0
1 year ago
C) Daca AD = 5cm AB = 15cm AC = 18cm si BC = 12cm, calculati AE, DE, DB, si EC?
Andru [333]
I think the answer is D I'm not sure though
6 0
3 years ago
Please help! I will mark first answer brainliest and lots of points!!!! Jeremy is playing a game called “Rational Round Up” wher
natita [175]
Shouldn’t it be 6. and 3. I hope it helped
8 0
3 years ago
Read 2 more answers
If h(x) = (fºg)(x) and h(x) = 3(x+2)^2 find one possibility for f (x) and g(x).
JulsSmile [24]

Answer:

f(x) = 3x^2

g(x) = x + 2

Step-by-step explanation:

Given

h(x) = 3(x+2)^2

h(x) = (fog)(x)

Required

Find  f(x) and g(x)

h(x) = (fog)(x)

Rewrite h(x)

h(x) = f(g(x))

If  h(x) = 3(x+2)^2

then

f(g(x)) = 3(x+2)^2

This implies that; the expression in the brackets are equal;

In other words; function g(x) on the left hand side is equal to expression x + 2 on the right hand side

So;

g(x) = x + 2

To find f(x), substitute g(x) with x

f(x) = 3(x)^2

f(x) = 3x^2

Final solutions are

f(x) = 3x^2

g(x) = x + 2

4 0
3 years ago
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