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Vikentia [17]
4 years ago
7

How many solutions does the system of equations below have?

Mathematics
2 answers:
BaLLatris [955]4 years ago
6 0

Answer:

C:  none

Step-by-step explanation:

Here we have two separate functions named 'y.'  Eliminate 'y' temporarily by equating these functions together:

x + 2 = y = x - 1

Subtracting x from both sides, we get:

0 + 2 = y = 0 - 1, or

       2 = -1

This is never true, so C is the correct answer:  NO solutions.

An easier way in which to do this problem is to visualize the graphs of

y = x + 2 and y = x - 1.  The graphs are parallel straight lines; they never intersect, and therefore we can conclude "no solution."

galben [10]4 years ago
4 0

Answer:

C

Step-by-step explanation:

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Trevor plans on buying a car. Four banks offer the annual interest rates shown.
mote1985 [20]

Solution

In order to find  greatest to least number, we have to convert the given fractions into decimals.

3 \frac{1}{10} % = 3 + 1/10 = 3 + 0.10 = 3.10%

3 \frac{2}{5}% = 3 + 2/5 = 3 + 0.40 = 3.40%

3 \frac{1}{4} %= 3 + 0.25 = 3.25%

3 \frac{1}{3}% = 3 + 0.33 = 3.33%

Now we can easily, compare the numbers and write from greatest to least.

3.40%, 3.33%, 3.25%, 3.10%

Greatest to least  = 3 2/5%, 3 1/3%3, 3 1/4%,  1/10%,

Thank you :)

8 0
4 years ago
Read 2 more answers
The probability that Fred's bus is late on any day is 0.09.
miv72 [106K]

Answer:

The bus would be 36 times late in 400 times of when Fred takes the bus

Step-by-step explanation:

Given that the probability of being the bus late is 0.09.

In order to find the number of times the bus will be late will be calculated by multiplying the total number of observations by probability.

It is also given that the total number of days he waits for bus is 400 times.

So,

The bus will be:

= 0.09*400\\=36

Hence,

The bus would be 36 times late in 400 times of when Fred takes the bus

6 0
3 years ago
The daily recommended allowance of vitamin C for six graders is 45 MG 1 orange has an about 75% of the recommended daily allowan
slamgirl [31]

Answer:

So there are 33.75 MG in an orange.

Step-by-step explanation:

I think your full question in the photo below,

Here is my answer:

1 orange has an about 75% of the recommended daily allowance: 0.75*45 = 33.75 MG.

So there are 33.75 MG in an orange.

8 0
3 years ago
The parent function, f(x) = 5^x, has been vertically compressed by a factor of one-half, shifted to the left three units and dow
Alona [7]

Answer: Choice C

\displaystyle g(x) = \left(\frac{1}{2}\right)5^{x+3}-2

=====================================================

Explanation:

The 1/2 out front handles the vertical compression by 1/2. For example, if two points are vertically spaced by 10 units, then their new vertical distance is now (1/2)*10 = 5 units.

The x+3 in the exponent means "shift 3 units to the left". Effectively what's going on is that the old input x is now x+3, ie 3 units larger than before. This shifts the xy axis itself 3 units to the right. If we held the curve fixed in place while the xy axis moved like this, then it gives the illusion the curve is moving 3 units to the left.

Then finally the -2 at the very end shifts the curve down 2 units. This is because whatever the y coordinate is, we subtract 2 from it to do this vertical shifting. For example, the point (0,62.5) shifts 2 units down to (0,60.5)

8 0
2 years ago
Simplify the expression (5-5i)-(-6-3i)
cupoosta [38]

Answer: Simplifying the expression of the substraction of the two complex numbers we get  11-2i


Solution:

(5-5i)-(-6-3i)

Eliminating the parentheses: 5-5i+6+3i

Grouping similar terms: (5+6)+(-5+3)i

Adding the similar terms: 11+(-2)i = 11-2i

7 0
3 years ago
Read 2 more answers
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