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2 years ago

Determine whether the equation 2x + y = 8 is linear. If so, graph the function.

Mathematics

1 answer:

erica [24]2 years ago

8 0

Answer:

Yes, it is a linear equation. This equation is in y=mx+b form, which is a linear equation. To rearrange it into y=mx+b form, you'll just do y= -2x+8

To make a line, you only need two points, so here are two points that fit into the line of y= -2x+8:

(0,8) and (1,6)

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How do you simplify this and write as a polynomial in standar form? (x-9)3x-7)+(3x^2-5x+2)

nasty-shy [4]

Answer:

Standard form of $(x-9)(3x-7) + (3x^{2} - 5x+2)$ $=6x^{2} - 39x + 65$

Step-by-step explanation:

Here, the given expression is $(x-9)(3x-7) + (3x^{2} - 5x+2)$

Now, simplifying the above expression in parts, we get

$(x-9)(3x-7) = 3x^{2} - 7x -27x + 63 = 3x^{2} - 34x + 63$

hence, combining both parts:

$(x-9)(3x-7) + (3x^{2} - 5x+2)$ $=(3x^{2} -34x +63) + (3x^{2} - 5x+2)$

= $6x^{2} - 39x + 65$

The above expression is of the STANDARD FORM: $ax^{2} +bx + c$

Hence, the standard form of $(x-9)(3x-7) + (3x^{2} - 5x+2)$ $=6x^{2} - 39x + 65$

6 0

3 years ago

Will be giving brainliest to the correct one, no links or account will be reported:)

Y_Kistochka [10]

Answer:

Step-by-step explanation:

64+53+ (ㅣ) = 180

117 + (ㅣ) = 180

(ㅣ) = 63

4 0

2 years ago

13 lb7 oz <br> + 10 lb2 oz

Vedmedyk [2.9K]

Answer:

23Ib9 oz

Step-by-step explanation:

13+10=23

7+2+9

6 0

3 years ago

Find the volume of a cone with a diameter of 7 inches and a height that is 4 times the radius. Use 3.14 for pi, and round your a

Tatiana [17]

Answer:

179.50 $in^{3}$

Step-by-step explanation:

The equation for volume of a cone is:

$V=\pi *r^{2} *\frac{h}{3}$

The radius is half of the diameter so r= 3.5 in

The height is 4 times the radius so h=14

$V=3.14*3.5^{2} * \frac{14}{3}$

V= 179.50 $in^{3}$

7 0

3 years ago

Read 2 more answers

a hiker begins his climb at a point a point which 214 2/5 feet below sea level . he hikes to a location at the top of the trail

Mamont248 [21]

What's the question for the info?

7 0

3 years ago