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jeka94
3 years ago
14

Solving systems of equations by subsitution

Mathematics
1 answer:
julsineya [31]3 years ago
4 0
<h2>Step 1: Solve one of the equations for one of the variables. Let's solve the first equation for y: ...</h2><h2>Step 2: Substitute that equation into the other equation, and solve for x. ...</h2><h2>Step 3: Substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.</h2>

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A 43 degree angle can be classified as which angle type ?
jeyben [28]

Answer: Acute Angle

Step-by-step explanation:

Any angle 89 degrees or less will identify as an acute angle.  

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Why do teachers make math so hard
ikadub [295]

Answer:

Step-by-step explanation:

Math on it's own is not hard. It's the way teachers teach it. It also could be your brain, some peoples brain (like my own) aren't made for math where there is only one answer but for creative interprutive answers like philosophy and art. Some minds are good for sports. Find what your mind is good for and you never go wrong.

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3 years ago
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If n is a positive integer and r is the remainder when (n – 1)(n + 1) is divided by 24, what is the value of r?
11Alexandr11 [23.1K]

(1) n is not divisible by 2 --> pick two odd numbers: let's say 1 and 3 --> if , then and as zero is divisible by 24 (zero is divisible by any integer except zero itself) so remainder is 0 but if , then and 8 divided by 24 yields remainder of 8. Two different answers, hence not sufficient.

(2) n is not divisible by 3 --> pick two numbers which are not divisible by 3: let's say 1 and 2 --> if , then , so remainder is 0 but if , then and 3 divided by 24 yields remainder of 3. Two different answers, hence not sufficient.

(1)+(2) Let's check for several numbers which are not divisible by 2 or 3:

--> --> remainder 0;

--> --> remainder 0;

--> --> remainder 0;

--> --> remainder 0.

Well it seems that all appropriate numbers will give remainder of 0.

4 0
4 years ago
Simplify.<br> √3(√6+√15)
Vikentia [17]

Answer:

10.9508446196

hope it helps

8 0
3 years ago
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Which expression is equivalent to ^3√x^5y?<br>a)x5/3<br>b)x5/3y1/3<br>c)x3/5 y<br>d)x3/5 y3​
Illusion [34]

Answer:

(x^5y)^{\frac{1}{3}}= x^{\frac{5}{3}} \times y^{\frac{1}{3}}

Step-by-step explanation:

We are given our expression as

\sqrt[3]{x^5y}

The property of exponent says that

\sqrt[n]{x} =x^{\frac{1}{n}}

Hence

\sqrt[3]{x^5y}= (x^5y)^{\frac{1}{3}}

Another property says

(ab)^n=a^n \times b^n

Hence

(x^5y)^{\frac{1}{3}}= x^{\frac{5}{3}} \times y^{\frac{1}{3}}

Hence option B is correct.

7 0
3 years ago
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