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3 years ago

Solve system by elimination 8x-8y=-16 -8x-7y=-29

1 answer:

6 0

Add these together.
You get -15y=-45
So y=3

Now plug in to first equation.
8x-8(3)=-16
8x-24=-16
8x=8 so x=1

Check both values in second equation.
-8(1)-7(3)=
-8-21=-29

It works...so x=1, y=3

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Which triangle’s unknown side length measures 7 units?

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A (A right triangle with a side length of 5 and hypotenuse with length \sqrt{74})

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HELP WILL GIVE 15 POINTS <br>what is the range of this function and pls explain

Nataly [62]

Answer:

$f(x)\geq -2$

Step-by-step explanation:

Range corresponds to the values of y on the y-axis. If we see the graph the minimum value of the y-coordinate is -2 and then it tends to increase from it. We do not know till where the y values will increase in the figure it shows 6 but it's still actually increasing we keep on tracing the graph but the minimum value will always remain the same which is -2 . So we can say that the range of the function is

$f(x)\geq -2\\$

Where f(x) is the function and since the values of y on the y-axis increase from -2 we can say that the function has the range of values greater than or equal to -2

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3 years ago

HELP WILL MARK BRAINLIEST What is the sum of the fractions? Use the number line and equivalent fractions to help find the answer

larisa86 [58]

Answer:

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3 years ago

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The area of a rectangle A = I x w represented by the expression 24x^6y^15 which could be the dimensions of the rectangle

denis23 [38]

Area of rectangle is given by:
Area=length×width
given that the area of our rectangle is 24x^6y^15. To get the possible dimensions, we shall factorize the area of our rectangle:
(24x^6y^15)
=(6x^6) by (4y^15)
or
=(8x^6) by (3y^15)
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=(12x^3x^5) by (2x^3y^10)

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3 years ago

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The combined land area of the countries A and B is 170,973 square kilometers. Country A is larger by 473 square kilometers. Det

MAVERICK [17]

$A+B=170,973$

A is larger by $47 km^{2}$

The equation is $(B+473)+B=170,973$

Subtract 473 from each side and add the B's

$B+473-473+B=170,973-473$

$2B=170,500$

Now divide the number by the variable.

$170,500$ ÷ $2=85,250$

$B=85,250$

To check, replace the B's with the value.

$(85,250+473)+85,250=170,973$

$85,723+85,250=170,973$

Answer:

County A= $85,723km^{2}$
County B= $85,250km^{2}$

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4 years ago