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Darina [25.2K]
3 years ago
8

I need help on this question

Mathematics
2 answers:
kompoz [17]3 years ago
5 0

Answer: A

Step-by-step explanation:

topjm [15]3 years ago
4 0

Answer:

C

Step-by-step explanation:

so you would want to get y on the same side for both systems.

for x + y = 3, you subtract x from both sides and get y = -x +3.

then you do the other one. 5x + 5y = 15. subtract 5 x from both sides.

5y= -5x + 15. then divide both sides by 5. y = -x +3. this means these two systems are referring to the same line. in this case, there are infinitely many solutions. so, answer c.

for no solutions, you would have parallel lines (lines with the same slope)

and for one solution, you would have two lines that intersected at one point

You might be interested in
Is -0.51 greater than or less than -8/15
alekssr [168]

Answer:

its less than

Step-by-step explanation

-8/15 equals -0.53 which means -0.51 is less than

6 0
3 years ago
Help.........................<br><br>​
garri49 [273]
<h3>Answer: Choice A</h3>

x^2\left(\sqrt[4]{x^2}\right)

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

Explanation:

The fourth root of x is the same as x^(1/4)

I.e,

\sqrt[4]{x} = x^{1/4}

The same applies to x^10 as well

\sqrt[4]{x^{10}} = \left(x^{10}\right)^{1/4}

Multiply the exponents 10 and 1/4 to get 10/4

\sqrt[4]{x^{10}} = \left(x^{10}\right)^{1/4} = x^{10*1/4} = x^{10/4}

\sqrt[4]{x^{10}} = x^{10/4}

-----------------------

If we have an expression in the form x^(m/n), with m > n, then we can simplify it into an equivalent form as shown below

x^{m/n} = x^a\sqrt[n]{x^b}

The 'a' and 'b' are found through dividing m/n

m/n = a remainder b

'a' is the quotient, b is the remainder

-----------------------

The general formula can easily be confusing, so let's replace m and n with the proper numbers. In this case, m = 10 and n = 4

m/n = 10/4 = 2 remainder 2

We have a = 2 and b = 2

So

x^{m/n} = x^a\sqrt[n]{x^b}

turns into

x^{10/4} = x^2\sqrt[4]{x^2}

which means

\sqrt[4]{x^{10}} = {x^2} \sqrt[4]{x^2}

7 0
3 years ago
(25 points) <br> What is the value of k?<br><br> Please explain your answer
galben [10]

Answer:

que?

Step-by-step explanation:

6 0
3 years ago
What error was made?<br><br> -4(6 - b) = 4<br> -24 - 4b = 4<br> -4b = 28<br> b = -7
lisov135 [29]

Answer:

step 2; a negative times a negative = a positive.

Step-by-step explanation:

-4(6-b)=4

<u>-24 </u><u>+</u><u>4b=4</u>

4b=28

b=7

3 0
3 years ago
Emily bought four boxes. A week later
Maurinko [17]
She had 22 boxes to start
6 0
1 year ago
Read 2 more answers
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