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Zigmanuir [339]

3 years ago

7

Y = 7x - 10 & y = -3

2 answers:

belka [17]3 years ago

8 0

Answer:

x=1

Step-by-step explanation:

First, we can substitute -3 for y. So we get -3=7x-10

We then have to isolate the variable x by adding 10 to each side of the equation.

Then we have the equation 7=7x.

Finally, we divide both sides by 7.

We get the finally answer x=1 and y=-3.

fiasKO [112]3 years ago

3 0

Answer:

x=7-13

Step-by-step explanation:

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For exponential functions which of the following expression is equal to [f(3)]^4]

Molodets [167]

Answer:

$F(3*4)$

Step-by-step explanation:

$Let\ exponential\ function\ F(x)=a^x\\\\F(3)=a^3\\\\\{F(3)\}^4=\{a^3\}^4\\\\\{F(3)\}^4=a^{3\times 4}...........eq(1)\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ as\ (m^n)^k=m^{nk}\\\\Now\ F(3*4)=a^{3\times 4}.......eq(2)\\\\From\ eq1\ and\ eq2\\\\\{F(3)\}^4=F(3\times 4)\\\\\{F(3)\}^4=F(3*4)$

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3 years ago

Factor the expression: -45x +40 expand the expression: 4w + 9( -6 - 3w)

AlekseyPX

Answer:

$\large \boxed{\mathrm{view \ explanation}}$

Step-by-step explanation:

-45x + 40

Factor out 5 from the expression.

5(-9x) + 5(8)

Take 5 as a common factor.

<u>5(-9x + 8)</u>

4w + 9( -6 - 3w)

Expand brackets.

4w + 9(-6) + 9(-3w)

4w - 54 - 27w

Combine like terms.

4w - 27w - 54

<u>-23w - 54</u>

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2 years ago

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Opal can make 9 beaded bracelets per hour, and Lynette can make 6 per hour. Together how many hours should it take them to make

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Answer:

I'm pretty sure it is 3 hours.

Step-by-step explanation:

Well, when you add 9 plus 6, you get 15. Then you divie 45 by 15, which gives you three. Hope this helps. Good luck :D

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2 years ago

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45 squared centimeters

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3 years ago