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3 years ago

6

Solve the system of equations by the substitution method: 4x-y = 35 7x + 6y = 38

1 answer:

Leokris [45]3 years ago

8 0

Answer:

x=8 and y=−3

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I will give u brianliest

Bond [772]

Answer:

1: $3$ × $2$

2: $y^6$

Step-by-step explanation:

1:

Multiply the numbers: $y(^3^*^2)$

$3*2 = 6$

Write it without exponents:

$y * y * y * y *y *y$ so $6y$ .

2:

$(y^3)^2$

Apply exponent rule : $(a^b)^c=a^b^c,$ assuming $a\geq 0$

$(y^3)^2=y^3^*^2$

$=y^3^*^2$

Multiply the numbers: $3 * 2 = 6$

$= y^6$

Hope I helped! If so, may I get Brainliest and a Thanks?

Thank you, have a good one! =)

6 0

3 years ago

What is the first step to 7(x – 4) = 84.

ss7ja [257]

Parenthesis according to the PEMDAS rule

So
7(x - 4) = 84

Would be

7x -28 = 84

Hope this helped :)

5 0

3 years ago

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What is -4 1/6 x 3/5?

vazorg [7]

Answer:

Step-by-step explanation:

6 0

3 years ago

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Simplify each of the following powers of i. i^15

frutty [35]

Answer: $-i$

Step-by-step explanation:

You need to remember:

1. The Product of powers property: $(a^m)(a^n)=a^{(m+n)}$

2. The Power of a power property: $(a^m)^n=a^{mn}$

In this case, given:

$i^{15}$

You need to follow these steps in order to simplify it:

1. Apply the Product of powers property:

$i^{15}=i^{12}i^2i$

2. Apply the Power of a power property:

$(i^{4})^3i^2i$

3. Finally, since $i^4=1$ and $i^2=-1$ , you get:

$=(1)(-1)(i)=-i$

7 0

3 years ago

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Please help me out on this test please

givi [52]

The answer to this is 954

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3 years ago

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